What no one has mentioned is plumbers tape is for NPT threads, which are tapered threads. The interference starts low and then increases as tightened so that the tape remains seated evenly across the threads for a seal. On a straight thread the tape just starts disintegrating.

@sordish

Ай бұрын

Yes exactly! Everyone - this is the correct answer.

@LaurentiusTriarius

Ай бұрын

Absolutely not, yes Teflon tape should be used only on NPT threads but it is NOT a sealant, the purpose of PTFE tape is to lubricate when the deformation occurs...

@jaro6985

Ай бұрын

It works OK on loose fitting straight threads to give them more grip. In this case tolerance is probably just too tight, no space for it to fit.

@jasonhemmerlin6139

19 күн бұрын

could it be a s simple as he just didn't wrap the tape in the correct direction so it just unraveled itself as he screwed in the BB. I've done this on new shower heads and it just comes right off, but if the tape is wrapped correctly it stays put.

Clearly Paul is the nicest man alive! Another KZread channel asked to borrow the Blade (which has the brand new SRAM Red), tell me anyone alive who would loan (if we were lucky enough to own one) their own mother such a machine? Top bloke.

Very cool gimick of pausing the video of a video. It does creat a mental pause to reflect on what has been said

@Mapdec

Ай бұрын

Thank you

as a plumber, i would never use ptfe on a thread pitch that fine, i would use paste. Just saying

@Mapdec

Ай бұрын

Insta fad debunked

PTFE tape would bunch up as you experienced but also affects the tolerance of the threads - don’t use it… it’s for plumbing…

@feedbackzaloop

Ай бұрын

It affects the tolerances exactly the way you want it to and it bunches up when wound wrong way round (or does it at disassembly when you reverse the direction). Good for plumbing - excellent for bikes.

@___Bebo___

Ай бұрын

PFTE tape is the 2nd best way to do a threaded bottom bracket after blue loctite, this is not true. Remember that grease only mutes noises, loctite and PFTE tape prevent the movement and the noise all together.

@JackFou

23 күн бұрын

@@feedbackzaloop Teflon tape is intended for use on tapered threads. On a straight thread with tight tolerances it will just disintegrate.

@feedbackzaloop

23 күн бұрын

@@JackFou no, for straight too. BB threads are neither too fine nor tight as well.

That’s new one to me using ptfe tape on bike threads. a good quality grease and I’ve never had any problems

Early in its life, my Trek 5200 would creak going uphill. It appeared to be very common. That was back in 97. More recently, I've replaced the bottom bracket with a new one of square taper vintage and tuned up the ole lad. It has never ridden better or with silent aplomb. Happy trails. 🐸

@keithjenkins7919

Ай бұрын

Alway used square taper NEVER EVER had a problem.

That PTFE tape is designed for threads with far larger pitch and depth and less precise machining. There's no reason to use anything but a bit of grease (or dry if that's what the manufacturer suggests) on BB threads.

@stephensaines7100

Ай бұрын

I'll go one step further: PTFE is a raging debate even in the discipline it originated in: plumbing. Rather than my detailing it here, Google on the subject. It's a short-cut at best, and a problematic one.

@chelolelo

Ай бұрын

I use antiseize(silber). Ive also seen other use antiseize in other parts such as on a fixed gear cog. Grease sometimes gets washed away etc. So it depends how much servicing you're doing. Where and what conditions you're riding it. I mean there are various lubricants for the chains for a reason.

@LaurentiusTriarius

Ай бұрын

Cheat code; Aero Chem, Pâte TEF "If you can afford it pal" 😂

I had a creak on my BB after setting up my 795 RS too! Took everything apart like you did and carefully re-assembled and the creak went away. My theory is that I wasn't very careful on torquing the BB to spec since the T47 tool I had didn't really grab that easily. Second time around, I paid significantly more attention to how I was tightening the bracket and to spec.

Another great video. Thanks

@kylixchi

Ай бұрын

Agreed

Great video as always!

@Mapdec

Ай бұрын

🙏

With plumbing threads you tape from back to front, clockwise and leave the last two threads bare. I wonder if this applies to bike parts as well? Great channel, I learn something new all the time, Cheers!

@SuperDodoe

Ай бұрын

of course it would as if it's wound on incorrectly it would cause it to bunch up.

I have a trek Boone CX bike with ultegra 11 di2 and BB90 bottom bracket. The bearing press fit surfaces are carbon. I can avoid all creaking by servicing the BB myself 2-4 times per season, depending on my mix of road and off road. Keeping everything clean seems most critical in my mind, having a pressfit BB. And a tiny amount of silicone to help keep grit out. Thanks for this interesting video on modern threaded BB. My wife's bike has a T47 BB and no issues so far.

@diehardbikes

Ай бұрын

I have both Boones, one 2019 RSL frame and one of the new ones. No issues with either if maintained properly.

@barriem5318

Ай бұрын

Agree with you

i dont even have this problem but find your videos so informative to watch.

@Mapdec

Ай бұрын

Thank you

@al-du6lb

15 күн бұрын

just wait, everyone will get bottom bracket creak if they cycle long enough

I think from my own experiences and experiments, that deviation from the manufacturers recommendations quite often leads to issues. If the parts are from a well established company the components have usually gone through extensive testing before going to market, this includes installation process. I think we all try new things though and it's great to share the findings and more importantly the reasons behind them. Great videos and content 👌. I've had some interesting investigation with cannondale si single ring cranksets, which I initially thought was a BB30 issue. It turned out to be the interface between the spider and chainring, periodic dismantling and reapplying locktite to the spline solves the creak everytime. So many people told me it would be the BB creaking.....so it's good to have a deep dive and really analyse the issue in depth 👍

Never used PTFE on a BB. It's good to keep on hand for threads old/vintage stuff like non-removable mech' hangars, and old cranks/pedals that have lost material over years through disassembly/re-assembly and corrosion to "pack out" the threads a little. If you have a Ti frame that suffers from the dreaded BB "tick/ping" and nothing else works, liqui moly brake anti-squeal paste shuts it right up, it's a tenacious baby blue coloured stuff that's like a cross between grease and tree sap, but it works a treat. Good for preventing the drive side of Italian threaded BBs loosening themselves, too.

@timtaylor9590

Ай бұрын

nothing beats wax

What we've learned from this video is.... bsa threaded with a 24mm axle is a godsend. Some of the more er 'progressive' designs mostly end up a P.I.T.A. sooner or later from bitter experience. Metal to metal interfaces need to be avoided at all cost unless a proper pressfit interface or taper-splined ... if we're able to slide a metal axle through a bearing by hand its a one way ticket to creak city.

@spokedonwrenching

Ай бұрын

Absolutely. The faff involved just to get the Look sorted is crazy. This all looks like complications for complication's sake.

@gooders9093

Ай бұрын

what I learnt is that 13 minutes could be condensed into 7 !

@Mapdec

Ай бұрын

no more complication than anything else, if anything its the ROTOR manual that only lists config for BB30 and 24mm. You would have thought that DUB has been around long enough to deserve a new manual.

@robertmcfadyen9156

Ай бұрын

Canyon , Giant and Specialized have started reverting back to threaded interfaces on Alloy and some carbon fiber frames with the correct adhesives used in the case of carbon .

222 Loctite will stop galvanic corrosion, plus allow reaching torque settings, also a thin layer of marine grade grease which will not wash away.

I tried the teflon tape hack years ago on several non plumbing applications. I found as with this example it doesn’t do well with fine threads but biggest issue was it reduces friction when tightening so you wind up over-tightening before reaching the torque spec.

"Take the Time...", "Have a really good Look..." I sense subliminal messages 😁

Press Fit BB is the most reliable and precise fit, if to;erances are kept to 0.00 the other types of is very risky, threaded BB doesn't give a tight fit. In vehicles manufactures use only press fit with no problems. That's why TIME kept PF BB.

@LTBlightthebeam

Ай бұрын

So does Giant

@matsrekdal3065

Ай бұрын

And Canyon! I know, they are not generally known for being the pinnacle of production quality, but i've had 7 of them and i like the fact that they stick to PF, even if other major manufacturers have switched to threaded.

@simonleeofficial

Ай бұрын

Royce bsa, best you can get.

Plumbers tape is a bad idea. It's designed, just like you said, to seal. Threatened pipe connections on plumbing don't endure large cyclic forces like on a bicycle. The plumbers tape just shreds and causes other problems in bicycle BBs. Makes no sense to use it.

Ptfe tape should only be used on tapered threads (npt etc)used in plumbing and gas fittings. Do not use it on parallel threads, exactly what you saw will happen.

The creak on my C60 sounded like the BB as it creaked when I was out of the saddle putting force on the pedals. It turned out to be the rear quick release mechanism even though it was tight... a couple of drops of oil and the creak disappeared 😀

Nice. I once had a mysterious sound coming up only at high-power pedaling, and it turned out to be that some of the cracked teeth bent and held the chain a bit (aka sticky teeth).

I have seen quite a few Look T47 bikes with poor alignment between the left and right sides. I wonder if that is the same on yours.

@Mapdec

Ай бұрын

Really? No. It’s perfect again now I installed the BB like I should have. Can you quantify ‘quite a few’ because right now there are only 3 dealers in the UK, and between us I doubt there are more than 100 T47 Look frames in the UK. Don’t get me wrong. I have had to face one frame, so we are not 100% perfect. The look T47 is a pretty solid full alu tube. What alignment issue have you need not fixed by facing?

@Hambini

Ай бұрын

@@Mapdec I had a count up. I've had 16. The symptoms are varied but range from creak to the bearing cage breaking, locking up and the bottom bracket winding itself out. All have been found to be misalignment between the DS and NDS sides. There is ~0.7mm of movement up and down/left to right in the threads, which is quite generous. The Look BB's seem to be more than that. In contrast, I've not had one problem with any of them fitted to Trek bikes.

@Mapdec

Ай бұрын

@@Hambini curious. Seems like a lot for how many are on the market. Have you spoken to LOOK about them? These alu tube BB are hollow tubes of quite thick alu that so how is misalignment possible, that couldn’t be fixed with a tap and face tool? and why would they come to you for a fix? All these bikes are well within warranty and only being sold by bike shops that are able to fix it. I’m guessing most of the ones sent to you are from abroad. 🤷‍♂️ surprising if you had 16 faults on a LOOK I would have thought that would be called out on your channel by now. Keen to have a chat, and see if we can pass this important info to LOOK. I know they would be keen to solve. LOOK have lots of annoying supply issues and missing parts, but frame quality isn’t usually something they mess up.

@aidancragg2122

Ай бұрын

“WE are not 100% perfect” - who is we? Are you part of Look?

@Mapdec

Ай бұрын

@@aidancragg2122 we. As in a LOOK dealer and we know that we have had a minor issue with one frame that was easily corrected at build. Fixing this issue is so easy, it really wouldn’t warrant a visit to Hambini.

All these new bottom bracket designs seem to be a right faff, with spacers, top hat spacers, pre load, minimal engagement for tightening with high torque. It just seems like over engineering with too many pitfalls and not enough benefit to the end user....... If you have little engagement for tightening and high torque to engineering solution would be to have a bolt through the centre or threaded location spindle so you don't try using your own physical strength to keep it engaged whilst applying the torque at the same time👍 As others have said PTFE tape in plumbing is for tapered threads, we often use loctite 577 in place of PTFE on threads for mould tool cooling where you may have a mix of parallel and tapered threads, but in this application a good quality grease would probably work just as well. Bring back BSA threads and memories of when life was quicker, simpler and more reliable😃

Awesome. Three tips for using Teflon tape. 1. Wind it in the opposite direction of the threads so that it doesn’t peel off as you turn it in. 2. Grease the Teflon before screwing the bb into the frame. 3. The real magic of using Teflon is how it keeps water ingress and thus dirt from getting into the threads. You can go further and ride dirtier before you get noise.

Chris King BB I think almost as rule use top hat interfaces. Also using ptfe tape might want to consider not wrapping right up to edge of threaded section, meaning wrap a few threads shy of outboard section. I suspect in well fitted parts unnecessary but ptfe still can help when fitment is a bit loose.

Before I watched the vid, I thought the bsa won't be such fragile, okay, it's threaded T47. Thanks man.

With reference to difficulty holding bb tools in place: I fitted a Token bb to try and stop a creak and it was impossible to tighten up without tools slipping. My solution was to use two 50mm square plate washers and a nut and bolt long enough to clamp bpth tools in place. Tighten up the bb ensuring that you tighten the nut up to keep the pressure on the tools. Also works perfectly for removal. Absolutely no slippage. The only issue was the torque setting recommended by Token was reached long before the bb was installed so i just used brute force and ignorance to ensure it was bottomed out against frame.

Beeeaaarrrinnng seeeeaaal 🤤

I had some many problems with the Praxis T47's and those stupid bearing seals. They were horrible. Best day ever was when I got rid of it.

Was the ptfe tape wrapped in the direction going with the threading? Wrapping it the other direction would most likely make it easier to bunch up

I believe PTFE tape is working as intended, It would never be applied to all the threads under those tolerances. Even a gentle stroke of grease is pushed aside from threads in my BSA bottom brackets. As you mentioned, it is used for sealing water/gas pipes and can do an excellent job even with PVC or plastic tubing. Regardless, I have seen it being used as a hack for already creaky bbs. No info for how long it works, if at all.

@Onigure

Ай бұрын

Didn't read the comment section before posting 😅

I have a knock from my t47a bb on my factor ostro. I run hollowtech cranks in the supplied reducers by factor. Do you have any idea what it may be before i start dismantling things?

Did you wind the ptfe tape in the right direction I wonder

@Mapdec

Ай бұрын

I took care to do this. Aware of the reverse thread.

Piling on the anti-tape train. PTFE tape is for tapered threads, not parallel threads. Presumably the cause of the bunching? It's also meant to lubricate the threads during assembly, which seems like would stomp all over torque wrench precision. It might work, but it seems unreliable just from what it's actually intended to do.

I am waiting for a video on how to measure the chainline with sram! thanks a lot

@Mapdec

Ай бұрын

Oh. Just a ruler or calipers.

@federext

Ай бұрын

@@Mapdec but from where?? I am dropping my chain too often with sram I need a good advice on this

@Mapdec

Ай бұрын

@@federext google. SRAM frame fit specifications

@federext

Ай бұрын

@@Mapdec perfect so I’ll take a ruler from the bb centerline and measure both chainrings and then do an average which should be 45mm. Any tip on which is the best place for placing the reading ? Thanks a lot

@RC-fp1tl

Ай бұрын

@@federextthe reading is to the center of each ring. If you need to find the center of your bb, just measure the width and divide by two. It sound be very simple

Yeah, that PTFE tape is not a good idea to begin with, that thread is just too fine for that tape there is no way tape could fit within threads. Another amazing video, thanks.

Great vid Paul serious part aside here’s the answer ….‘The Alternative’….. a) loaned my bike to PT (monster of a man). b) got myself soooo fit over winter broke my BB with excessive watts …..and melted the grease. c) too much vitamin D acquired in Mallorca……… you pick 😁

@Mapdec

Ай бұрын

Peak Torque sabotage 😂

Send the tape idea to GCN hack / bodge.

What i know is PTFE tape currently only recommended for the NPT type of thread. Usually found in low pressure system (surface oilfield system or water plumbing system).

Always had good luck using pipe dope (white paste) on threaded BBs. Its messy though

What's your thoughts on C-Bear? I have used with Sram Red cranks and it has been unbelievably reliable with minimal maintenance...

@Mapdec

Ай бұрын

Mixed.

having had the bottom bracket checked when the LBS installed a new crankset, i am now waiting to go back to get a creak sorted out....hope they didnt add ptfe tape ha ha

I tried PTFE on a few bits on the bike and it have never gone well......leaving it in with my plumbing tools.....

Fantastic diagnosis methodology video! Question: you were talking about the plastic top cap in SRAM's DUB BBs vs those that are metal on metal. Do you have any experience on the latter being more abrasive on the aluminium crank spindle? I'm currently looking at upmarket DUB BBs but the idea of hardened steel fretting on anodised aluminium is worrying me a little.

@Mapdec

Ай бұрын

Yeah. It’s not ideal. A delrin top hat would be better. Watch this space.

The abbey tools t47 socket has an m6 threaded hole in the centre so you can secure it from the other side (i us a bolt and matching drift from their bb press) you can knock of 50nm without breaking a sweat 😅

@Mapdec

Ай бұрын

Yes. Park have copied it now too, as well as wolf tooth i think.

Any chance you could do a build video on the new Bianchi specialissima pro, as I was nailed on buying this until you put the Look 795 or 786 blade RS on my list. Love your honest quality opinions.

@Mapdec

Ай бұрын

Yeah. Can you send us one?

Great video. Thanks. I have a question regarding my new bike build. I'm using a 30mm axle in a BB with 6806 bearings. There's a slight vertical movement on the axle that the preload adjuster cannot totally eliminate. Should I use a retaining compound to close the clearance between the axle and the 6806 bearings? Thanks.

@Mapdec

Ай бұрын

No. That fit should be perfect. If the axle is worn you will need to replace it. If the crank is brand new you have something wrong.

@jonathanwoo6597

Ай бұрын

@@Mapdec The axle is new and the BB is new. I have the same exact setup on another bike but no movement. I think my new bike (SL8) has such a perfectly aligned BB that the movement I'm feeling is the clearance between the axle and bearings (required because it's not an interference fit). I removed the crank from my other bike and put it on the SL8 as a test and felt movement on the SL8. So the only explanation is the BB alignment is too perfect on the SL8. I have a feeling that this movement will cause the hard steel bearing wear into the soft aluminum axle. On my other bike the axle is still like new due to the lack of movement.

@Mapdec

Ай бұрын

@@jonathanwoo6597 lol. There is no such thing as bearing alignment being too perfect to cause an issue. If you have squeezed a 30mm axle though a BSA hole, that’s going to be problematic in the future. But not right now. There is something wrong. Get to a bike shop.

I have a certain 4 piston brake that is known to leak mineral oil out of the bleed port and contaminate the pads. Would ptfe tape wound the correct way around the bleed port screw fix this? The port is a poor design that allows the o ring to slip out of place.

@Mapdec

Ай бұрын

It might be worth a go.

personally I use copper paste on threaded BBs

I’ve been experimenting with the PTFE method as well. PTFE tape is used to seal threads to stop water ingress (which will degrade the bearings internally as water travels easily down unsealed threads), act as a lubricants in place of grease (making it less likely that the BB get seized in the frame), fills in any spaces between poor tolerances and finally reduces the required torque needed (just like apply grease does). There is no reason why it won’t do all these things. Why are these comments so over the top? PTFE will never be present on the threads when unwrapped, much like grease isn’t. It is extra time, slightly annoying clean up and does it provide any extra benefits over good thick marine or anti seize grease? Probably not. This is a great channel and its intelligent approach to bike mechanics is just what’s needed but the comment section is full of over the top non logical moaning.

Great video......PTFE tape is used on joints used on radiators or stop taps .To stop leaks... makes zero sense on a bottom bracket thread( on a side note ,when using PTFE, if put on going against the threads, it won't work gotta be in the right direction )

Once I changed a bb when what I needed was to grease the freehub.....

No worries. I had headphones on hand :) in seriousness though - f*ck t47, fuck dub and all these spacers and shimming. None of this needed with the pf86 and 24mm standard. Slot the cranks in, do the bolts up and off you go. If the crank’s dont debond that is…!

@Mapdec

Ай бұрын

Always something.

What rim/tyre combo are you using? It looks sharp!

@Mapdec

Ай бұрын

Ryot55. 32mm tyres

I think the tape makes sense as a botch on a badly out of tolerance BB, to physically fill the space. Otherwise, grease / dry.

Anyone know where to find 30mm to 29mm plastic top hat spacers or adapters? I got some cheap ones from Aliexpress but they seem to be too slack on the axle and cause a clicking sound while pedaling.

@madenwashere2123

Ай бұрын

I found some candidates, albeit pricey. Both Chris King Fit Kit #2 DUB B and Hope Bottom Bracket Conversion Kit 1 seem to have 30mm to 29mm top hat adapters!

Speaking of BB. I'm choosing my next crank set on my gravel bike. Please advise which option would be better in terms of longevity and ease of maintenance for a standard pressfit BB86: Shimano Sram GXP (currently used) Sram DUB

@Mapdec

Ай бұрын

Depends on what chainrings you need to run. If possible I would go 24mm axles. There are more options out there.

@dustyhoods

Ай бұрын

@@Mapdec Thank you! I'm running 42T 1x chainring.

@Mapdec

Ай бұрын

@@dustyhoods I meant your chain for AXS chains you need AXS compatible chainrings. Not all brands offer this.

I’d stick with the grease, and if the manufacturer of the bike/bb calls for the grease, then the spec they give will account for the increased attachment tension the grease will cause.

PTFE tape on the BB? Seriously? We tried that decades ago and it was disastrous. Problem is, it's an unstable material when under load....

It is true, tape affects the torque settings. So at first assembly did you torque up because of extra medium in the threads or torque down because PTFE reduces friction? Here is btw the hint to why the creaks: friction reduced in places, cup allowed micromovement.

@Mapdec

Ай бұрын

It is very hard to get 45nm with these low engagement BB. I went to 45 and that was quite difficult. I am going to get a bolt through retainer

@feedbackzaloop

Ай бұрын

@@Mapdec that would be a great upgrade to the setup. But then you won't be able to use square drive torque wrench - one solution, another challenge!

One wrap of PTFE will never stay in place. You also need to wrap it the correct way so that it tightens the tape onto the thread as you tighten the component.

Oh dear now I'm scared as i used ptfe tape myself. I was already nervous abt it b4 this video.

2000km in and my shaft’s still running smooth in hambini

@Paul9

Ай бұрын

🤭

@BennoSattler

Ай бұрын

Are you a hairdresser?

@nadsim154

Ай бұрын

You don't need to be a hambini fanboy to run 2000km smooth dude...

@Carftymk

Ай бұрын

id be outraged if even the cheapest bb didnt last 2000km lol

12:20 if what you were holding in your hand was a regular right hand thread then you put the tape on backwards could explain why it came off

As below - ditch the PTFE no good on parallel threads - if you need to use it , score the thread on the bottom bracket( which you will not want to do on your £200 BB)

Just fit a Hambini BB i have them on all my bikes,and never once have they creaked!

@neilbuckley5796

Ай бұрын

Should expect they don’t with the cash they cost.

@Onigure

Ай бұрын

@@neilbuckley5796 They are indeed expensive, and a bit overkill with NTN bearings (unless you are racing). I believe they are best used with frames with tolerance or alignment issues.

@neilbuckley5796

Ай бұрын

@@Onigure I can appreciate the engineering. But they’re overkill.

You're quite correct that PTFE tape is used to seal (fluids from getting from one place to another), which is obviously not the use case for BBs. Don't bother trying it a 2nd time and let whoever it is attaching their initials to it to take the stupid medal on their own.

Solution, get an sl8… 😜 Wait now for all the “expert” mechanics trying to teach what you should have done… I am glad you posted this education video, great intro.

@Mapdec

Ай бұрын

We have an SL8 in for filming.

@bendardania

Ай бұрын

@@Mapdec I am sure you will appreciate simplicity of what it is currently the greatest piece of engineering in cycling. A piece of unsolicited advice; unless you put roval rapid cockpit it’s not an sl8. No other handlebar fits sl8 properly but the roval rapid cockpit. Sl7 stem makes it look ugly and sits way too high. Cockpit even though it’s says -6 degree it’s actually 12 degree inverse. Cheers

@Mapdec

Ай бұрын

@@bendardania it’s definitely simple. We are fitting an sl7 stem at customer request for travel.

Almost like a bodge method gives bodge results. Not sold on that tape idea. Correct selection of parts, tight tolerances, and maintenance eliminates the need for methods like that. No movement, and good alignment means no creaking. Low strength threadlocker is a repeatable method, with predictable removal torque.

this channel just keeps pushing exactly the videos that i need. I am kinda suspicious at this point xD just today did I want to attack my creaking problems in the BB area which I noticed during the last two rides ( tuesday and thursday ). I went to the workshop where they weren't able to set their own torque wrench (good to know how you own tools work...). My luck with workshops is awful. So directly ordered a toque wrench for up to 60Nm and a dub BB tool. In case you read this. Would you recommend unscrewing the BB (BSA) completely and clean it or just torque it further to the correct torque? Asking because I am not sure if it was too loose, might dirt have had a chance to find it's way between frame and BB. When first installed everything was immaculately cleaned and greased (dont have anti seize and chatgpt was sure grease is better than nothing :D).

@Mapdec

Ай бұрын

Take it out. Check everything.

@RAP4EVERMRC96

Ай бұрын

@@Mapdec will do. Thanks for the advice and the video.

PTFE is used in plumbing threads that are tapered not straight cut. It designed to fill the tapered cut threads. The only reason I could see using PTFE would be you have a BB that is out of spec and you are hoping to fill a gap rather than send the frame back to the manufacture or maybe you can't send it back. Not a solution for a peak torque rider, but for someone who is just going to the cafe for a croissant, it might be fine.

Stupid question did you roll the the plumbers tape on in the correct direction? Bosch includes a roll with every security camera that has a specific mount and if you roll it on the wrong way its a major pain in the ass and gets all stringy.

@Mapdec

Ай бұрын

Yeah.

Wondering if the tape was placed in the correct direction? Oh well best not to mess with specs.

If your BB is PF then it’s matter od time when it will start squealing and creaking. Give us back threaded BB-s!

or if you ride a cervelo the way to get rid of the built in bottom bracket creak = a pair of ear plugs !

How about thread paste?

Can you tell please the brand of your sunglasses?

@Mapdec

Ай бұрын

Smith

As others have said, PTFE tape probably not a good idea on such fine thread pitches. Also - the tape should be rolled in the direction of the thread.

Is anti-seize compound a suitable substitute for grease?

@Mapdec

Ай бұрын

For what application?

@JoeW71

Ай бұрын

@@Mapdec Through axle, bottom bracket, derailluer hanger, stem,... I don't do much work on my bicycle but really enjoy your videos. Just got a new Felt VR partly based on your favorable comments.

@Mapdec

Ай бұрын

@@JoeW71 here’s a safe rule if the instructions are not clear. Assembly compound or loctite for threads. Grease for moving parts. Carbon paste for clamping.

@JoeW71

Ай бұрын

@@Mapdec 👌🙏

Using the PTFE tape means that its impossible to know what the torque should be and it could be the case that its not possible to torque it to achieve the required fit - I'm guessing the torque required would be more than spec but who knows what that would be!

My clients never get these problems , Paul .

4C's: condition, cause, correction, confirmation.

With bare dissimilar materials using copper or nickel anti-seize compound prevents galvanic corrosion. But the BB cup made of anodized aluminium and the frame threads machined aluminium, the light coating of grease should be enough to waterproof the assembly. Why plumbing tape, which get sliced up because of the low tolerance and sharpness of the threads?

@Mapdec

28 күн бұрын

I always think it’s best to follow instructions, but I will experiment with things on my own bike.

I have never had a bottom bracket creak. I have never paid more than 30$ for a bottom bracket. Long live metal frames.

I’m just a home mechanic, but my advice is to use bike specific products, not stuff you use for plumbing.

Did you wrap the tape the correct way? Wrong way and it will pick up and shred itself

@Mapdec

Ай бұрын

Yeah. Wrong way and it just bunches up as you thread.

Apparent torque = effective torque + resistive torque. Spec is effective torque. Ptfe adds resistive torque

I started using Top Hat's on all my new bike builds , i like to stay away from the metal to metal . PTFE tape is for plumbing , lol stay away from it

Not a sram fan have both types of bottom brackets on my bikes

I am surprised to see that step #1 is to make sure it’s actually the bottom bracket! Worth checking pedals, wheel axles, cassette, headset, seatpost, saddle before taking apart a crankset. Love the content anyway

Ive never experienced a creaky BB in 50 years of cycling. The only plausable explanation is that i put out so little power i couldnt pull the skin of a rice pudding. Pedal lightly in future😅

@Mapdec

Ай бұрын

Oh man. My brother and I used to fight over the rice pudding skin. 😂

Biggest mistake from customers on getting a better bottom bracket it’s going metal to metal spindle to bearing Sram and Shimano. They don’t do that for that reason.

PFT tape is applied by rolling the tape into "string" like lengths. These strings of PFT are then wrapped in between the threads. Then, (optionally) you can wrap the PFT tape flat like you did in the video. But, here is the problem. The elongated "string" shaped PFT is too wide for the fine threading of a bottom bracket. That means, the PFT will not seat between the threads and simply rotate to the ends causing a problem in holding the tension of the threading. Unless you are dealing with threading that is wide, PFT is not considered a choice. That being said, it could use if the thickness of the tape and width of the tape is equal to or less than the thickness of the threads... but, there is no PFT tape I know of that is that thin or narrow... nor, would it be easy or practical to apply.

im still on square taper 😂

I believe the teflon tape was installed incorrectly initially . Checking with a licensed plumber would have been a good idea .

@Mapdec

Ай бұрын

😂

@robertmcfadyen9156

Ай бұрын

​@@MapdecI saw your reply . A question , private messaging , off topic . Theory that fast engagement 36 , 48 and 54 point rear hubs are less durable for a given number of pawls with the same spring pressure and metallurgical properties , compared to 24 or 16 point ones . A lady I sponsor riding Mondraker asked me this early today , (15 hours ago) .

Pressfit is easily the superior choice of bottom bracket, we all know now it is poor manufacturing the is 99.99% of creak issues.