I cycled around 11K km this year, including two long solo bike trips. 1300 km and 900 km. In the process I understood one thing: moving from square taper to any kind of BB with external bearings and hollow axles is actually a downgrade. Yes, they are lighter, but they provide zero difference in actual riding and pedaling efficiency (unless you are an UCI racer who counts every gram), and they are much less relieable. Over the last year I broke 2 axles on Hollowtech-II and GXP cranksets, and now I'm perfectly happy with a good, cheap and indestructible UN-55 square taper. Just for your consideration.

@alex_n8863

2 жыл бұрын

I'm setting up my old MTB for touring and reverting back from X1 Hollowtech to a square taper triple. I hear it's the future!

@LxcusFN

2 жыл бұрын

I was thinking that myself my brother has a hollowtech type to and he need a new one every year and I have a square taper only every got one of them

@socas_nic

Ай бұрын

Exactly what part of the axle you broke? You mean the splines of the non drive side?

@safekeeping2923

22 күн бұрын

If Suguino hasn't gone hollow neither will I. However my ISIS drive on my cx bike has been going for 12-13 years now.

Really appreciate your clear, concise breakdown of the options as well as your methocial approach.

No long ago I did just such an upgrade to my Salsa Timberjack...the NX/powerspline was replaced w/ a GX/DUB BB. At the same time I converted to tubeless. BTW I really like the content of your channel...always very imformative and well presented! Thanks for all the time and effort you put into it.

Good video, but I have never seen a bottom bracket undone with 2 spanners before when 1 spanner is all that's needed. Use a single adjustable spanner to tighten the removal tool to the crank arm first, then use the spanner to tighten the 2nd part up whilst holding on the crank arm. Holding the crank arm acts as a better lever than the looser extra spanner, and it saves the spanner causing an unnecessary scratches in case it slips. Have fun.

Now I feel relieved that my square tapered BB can be upgraded to modern BB.

@vlad1421

3 жыл бұрын

Same. Just got a marin bobcat trail 3 for birthday, and really wanted to make it more and more Enduro capable with time

@jameson7199

3 жыл бұрын

@@vlad1421 good for u! I Cant to convert mine. i've already ordered a new crankset for my bike. can't wait for it.

@vlad1421

3 жыл бұрын

@@jameson7199 wow man, I wish u a lot of fun with it!

@daily_dose_of_nothingness

2 жыл бұрын

I did already to MT210 Hollowtech 2019 latest (Alivio noobs calling it Altus while it's not)

You don't appreciate square taper until you start riding in a very dusty terrain with alot of fine gravel like stones. Those small particles really affect hollow tech and press fit bb

So clear and keep it simple to understand. Thank you 🙏

Nice video... I was looking for this exact process as I have a Trek Marlin 4 and its been in need of a cleaning on the bottom bracket for some time. Thanks!

Excellent video! I plan to make the upgrade to hollowtech BB and replace the 3x7 Tourney drivetrain on my Raleigh Tarus 2 with 1x10. I already upraded my freewheel to a shimano freehub and 8 speed cassette as stage 1. Your videos help a lot. Thanks for taking the time to produce them.

@spygamer6750

2 жыл бұрын

What is the specific name of your Shimano Hub?

@mtbbiker6401

2 жыл бұрын

@@spygamer6750 I replaced my formula freewheel hub to a Shimano FH-M525A Freehub. It's 135mm QR rear hub.

Ah, Finally found the tutorial I was after. Excellent!!

Excellent video, thank you for the good audio and videography.

Just changed my square taper bottom bracket to another campagnolo square taper bottom bracket. Last one I had for 24 years pretty good if you ask me and yes I put a lot of miles into it.

thank you very much, long been looking for this information. now I'm confident I can do this on my bike as well 👍

Square taper bottom brackets are bomb proof! I changed all 5 of my bikes with Square taper after having a lot of problems, I can stomp the pedals if I want and I never have a problem! The video was well done though!

@rangersmith4652

Жыл бұрын

That is why adjustable cup and cone square taper BBs were the standard for decades. Weight saving is the only valid reason to use anything more "modern."

Thanks, very clear and systematic instructional video 👍

Learned a lot from this video

very good and straight forward video.

Great quick vid! My Specialized needs a drivetrain upgrade, and has a square-taper bottom bracket.

Very helpful and very clear, many thanks :)

very good detailed tutorial! thats what ive searched :-)

@lucasbhogal3790

4 жыл бұрын

me too omg thanks LoveMTB

Execellent, Berry good...!!!

Thanks... Now i know that my cartridge can be converted... Planning to convert soon...

Like a simple way of your tutorial 👍

super easy, Just upgraded my worn cheap square tapered crankset to an Alivio hollowtech II. Now it's lighter, stiffer, derailleur works better and it's easier to maintain

@stilianivanov3377

4 жыл бұрын

Square tapered BBs are pretty much maintenance free if assembled properly. Also they have better water resistance, since the tolerances are tighter. I give my bike hell everyday and still haven’t got any problems with it, I even converted it to 1x. I think there are better things that can be changed for that price, which would have much greater impact performance wise.

@piotr462

4 жыл бұрын

@@LoveMTB fc-t4060 44/32/22 weight about 1200 gr include bb. Fc-m470 ( for an example ) weight 696 grams + 260 grams for bb-es71 bb = 960 ( 1000 gr with bb-es25/300) . So what is cheaper, lighter and stiffer ? Gotch ya ;) or.. fc-m750 - 680 gr + bb-un72 - 260 gr = the same ( and still the stiffnes is better or the same as alivio fc-m4060 ) You all just didnt use good square taper crank or octalink crank. Maybe You were born to late ;)

Thank you very informative and concise video.

Thank you, just what I was looking for. I wish to do this to bi old 90's Bianchi ocelot mountain bike.

You make it look so easy,your bike is new with sealed cartridge that comes off easy with no dirt. Well used old bikes have hard to remove,filthy,stubbon bottom brackets!!!.

Helpful guide , i ride marlin 5 over 1 year!

@MTBLife

3 жыл бұрын

@@LoveMTB sure, thank a lot!

Replacing my first bottom bracket this weekend, thanks for the helpful video

@mtbridersanonymous9152

2 жыл бұрын

@@LoveMTB yea, just learning how to work on bikes now hopefully I don’t mess it up 😅

@mtbridersanonymous9152

2 жыл бұрын

@@LoveMTB it’s on a trek FX2

@mtbridersanonymous9152

2 жыл бұрын

@@LoveMTB awesome back again, watching for the third time lol

I upgraded my old 26er from Octalink (Hollowtech 1) to Hollowtech 2 💪🏻😎🔝

Great video 😁

Would love to see more upgrades being done on your marlin 6 since i just bought a 2020 marlin 7 and looking for things to upgrade 😁

Great video

Great vid and right to the point with all the answers to my questions. Awesome!

Good video thanks

Thanks.. It very helpful.

Thank you for this video it is so clear.

@documentapolis5835

3 жыл бұрын

@@LoveMTB nice my friend.

Awesome & Thanks :)

Great detail

Nice video sir! Ride safe

Awesome!

Nice video, That said when I world tour (mtb frame), I throw in a cartridge square tape taper and crank, ! Less worry

Shimano cranks and BB are the best value going. Their chainrings are some of the best shifting. Tools required are affordable and SIMPLE to use! You can expect that BB to last a long time as long as you dont let water sit in the bb shell. I had an XT BB last 12 years of hardcore off-road use. If you ride through creeks or in frequent wet conditions, take your seatpost out and leave the bike upside down for awhile.

Great video! One thing I'm wondering though: the square taper BB I have in my Diamondback is 113.5 length. Does that matter for switching to a Hollowtech, or is that only relevant to the square tapered BBs?

Great video as always! What tools would I need to change a crank set? I have a Sram DUB BB and want to move to Shimano XT 12 speed soon. I know I need a new chain ring at the very least. My current drivetrain is Sram NX, with NX cranks. I think I’ll need a new rear hub (my current is Novatec) to fit the required micro spline driver. Thanks!

Changed four of my hollow tech fitted bikes back to square drive after getting fed up with wearing the hollowtech versions out. The most reliable of the hollowtech is the shimano. Don't touch the others. Had to resort to changing the chainset from GXP to shimano 105 after getting through three of their BB's in 12 months before I finally gave in! Each manufacture has their own BB design and chainset crank diameter, so you can interchange them.

@LoveMTB

3 ай бұрын

Surprised by your experience I’ve had a GXP for 4 years and no problems, MTB use. Shimano is best with GXP close second

@nigellee7892

3 ай бұрын

I’ve a few bikes myself - two with a Hollowtech BB and one with an old school Square Taper Bottom Bracket. In my experience too, I’m inclined to think that the Hollowtech wear more quickly than good quality Square Taper Bottom Brackets, however, at least the Hollowtech BBs are a little easier perhaps to replace than SQ Taper ones. The new Hollowtech Bottom Brackets are clearly more fashionable now and sexier than the old school SQ Taper ones, but in reality Square Taper Bottom Brackets remain a perfectly good and viable option on many bikes! Using a Hollowtech Bottom Bracket though, does of course provide access to and allow the use of a wide range of newer-style cranks which are not compatible with SQ Taper Bottom Brackets. I’d like to find out though whether swapping Square Taper Cranks with Cranks designed for Hollowtech introduces problems and issues with the bike’s Chain Line. Looking at the Crank on the frame in this video here, it would appear to be far too close to the chain stays, even without a chain on it. Changing a BB on a bike is a relatively easy thing to do, but if you’re changing the Chainset as well it’s only half the job and setting up a well-aligned and well-adjusted Chain-Set on it is quite another matter.

@LoveMTB

3 ай бұрын

@@nigellee7892 I have a video about chainlines and cranks if you want to check it out. Actually two, Shimano - kzread.info/dash/bejne/fJ6m0rakeqqcgcY.html and SRAM - kzread.info/dash/bejne/pmSMldClp7LVcbQ.html

It's kinda weird not using crank arm as your second wrench as it specifically designed to transfer rotational torque.

thanks

Short video but quality unharmed. Cheers!

What tyres have you got on there, I'm looking to use my trek Marlin for mostly road use and want thinner tyres cheers

After buying the extractor tools and figuring out sizing probably easier cost wise to take it to local bike shop and have them do it. It’s not like you’ll need those tools again.

What BB can I use to replace the square taper on my 2022 Marlin 5? I want to install Raceface crankset. Thanks youve helped me so much on my upgrade path.

Thanks for the great Video! Is it necessary to upgrade the crankset if i upgrade the bottom bracket? I also have a 9 speed bike, but at the front i can change the drivetrain from 3 to 1? On the back i go to 12 speed. Thanks for your help my Friend

Hi do you think that'll be a good idea if ill switch from 10 × 3 to 10×1 by only changing a single front casette?

Your bike is soooo clean. I did alot of upgrades to my 20 year old mtb but i only cleaned and greased the bb, and replaced the 2nd chainring of the 3 by. I also got an 8s cassette on sale that was slightly bigger, 32T., $15. So i will keep that for awhile, but i am looking for 1 by solutions. I guess i can put on a shimano threaded through axle/spindle bb and that will give me 1 by options. Can't decide if i want to go 9s box one/2, or use my 10s cassette, derailleur and shifter on my other bike and upgrade the other bike. I could also go 11s or 12s shimano. I guess i could use a race face narrow wide ( see a raceface crank and 1 by 10s chainring on sale for under $150 that is supposed to be compatible with 9/10/11). Is there a spec on the chainring, for mixing and matching manufacturers? What bb have you used that works well, besides the shimano, for an competitive alternative?

Nice video, new friend here!

Great video, thank you! I’m going to do the same to my Trek Marlin as the BB is getting quite worn. What BB and crank did you get specifically? Thanks!

@steelestudios1512

3 жыл бұрын

@@LoveMTB thanks!

Just Picked up a Vintage 1994 Parkpre AL U MAX MTB missing wheels . Seat Post and Front Answer Manitou Comp Forks Shot !!!!, Tried to remove the Crankset !!!! - Looks like Dude Befor Me install BB REVERSED !!!! the Plastic Cup on Drive Side Broke OFF Now the METAL CUP os in the NON Drive Side !!!! Will Try Some HEAT - TOMMOROW on the Drive Side Steel CUP installed in the NON DRIVE SIDE

@jonienglish3231

3 жыл бұрын

@@LoveMTB Bottom Bracket Non Drive Side Threads Slight Damage from Removal of Seized BB-kzread.info/dash/bejne/iK6jk9ajm7PFmpM.html

These look convenient, but I hear they are not as hardy or reliable as a square taper. On my old 2007 Trek 7100, the square taper cartridge BB never wore out. In 2019 I bought a new Trek Verve 1. The square taper BB in it lasted to this week, I just replaced it with a new Shimano square taper BB, works beautifully, hoping it lasts a good long time.

@LoveMTB

Жыл бұрын

Depends on the use, it limits the cranksets you have access to. And it's heavy!

New subscriber here😊

I have a square taper on my Talon 2.5... I need to do this conversion

Thank you for video! Is there a weight saving by going from a spindle to a sub system?

@robertp7209

3 жыл бұрын

When I redid my old road bike, 68mm, the Shimano bottom bracket was 1/2 lb lighter than the original Campy cartridge type. Double Ultegra crank was lighter by 0.15 lbs over Campy triple racing crank. The triple had a slightly longer shaft, the Shimano was standard.

Hi, thanks for the video. When you installed the crank set how does it work with the axle? Because the other bottom bracket had an axle and the new one didn’t. So did you have to change the cranck set as well?

@LoveMTB

4 ай бұрын

Changed both BB and crankset. Look for my “ Worth Upgrading” video for more ideas. Also have a TREK Marlin upgrade as well. Lots of info

Should you recommend that kind of set up for a single speed mountain bike?

I have a classic Canondale super V 500 I want to upgrade the junk cranks on it this will work correct and it’s a 68mm body with this bottom bracket I could pretty much use any race face cranks? Thank you for any information you can provide have a great night

Пожалуй подпишусь. Тут хоть внятно объясняют

Hi, I have an 1x8 drivetrain with square taper. I would like upgrade it to new Hollowtech and ect. , but I found only on the market crankset that only for 1x10, 1x11 drivetrain compatible. Can I still do it using the spacer to set the chainlink ? Thanks for help. Great Video !

I had same 73 MM BB. But my rear hub spacing is old type 135 MM. So I see a chianline issue . Did you have a better spaced hub (142 or boost)?

Been trying to remove my cartridge bb but the tool keeps slipping. The tool I have has a chamfer on the edge of the splines. Might have to grind it down

Yo bro can you track the weight savings with the 1x conversion ? Ie weigh old parts and then weigh new parts? For a SRAM SX crank do I use the SRAM dub BSA English thread bb on my Marlin 7?

i would made this with the marlin 5 2019, but i wiss instale a platon sturney archer 48 t with a pinion a rosc 14-28(original of the marlin 5), the questions is:it possible.

If I have a square taper and am going to convert would I need to change my cranks?

How do you know what to look for as far as fitment and measurements I have the specs for bottom bracket but don't know what any of these numbers mean I would take it to the bike shop but then I would have to choose from whats available I want to get the promax bb and shimano alivio 3x hollow tech crankset but dont know which model bb fits my bike so what do i look for I have a micrometer so far all I see is 68/73 for the models lol ?

Hello. I am thinking about replacing my tapered crankset on a 2021 diamondback hook with a 1x setup. I’ve already got my Deore xt 11s drivetrain. Now its time to change my chrankset and BB. I was wondering if the shimano xt bb-mt800 hallowtech ll will accomodate the Raceface Aeffect EXI Crank Arms 165mm 24spindle exi?

Can you please answer my question? Does the cranksets come with the the through axel with them in the box?

Does hollowtech bb has any complications or anything downside if you're still using Threaded type cogs ? I'm planing to upgrade on 3by hollowtech but i think there would be an adjustment complications with the crank cause of the hollowtech shell?

That chainring looks like a perfect fit. Do you know if there’s a way to use a bigger one?

@justincase1588

4 жыл бұрын

I have the same bike in XL. do you know what the max would be by chance? Thanks

@Montblanc1986

3 жыл бұрын

@@justincase1588 Pretty sure trek says 30 but perhaps a 32 can fit. That's why I run 2x on low end bikes, I need a 36

Is the tool that you used to remove the old BB universal or are there a bunch of different sizes out there

Very educational your the doctor of mtb

Hi LoveMTB! just want to ask advise what is the max chainring size I can upgrade to my trek Marlin 5. does 40 to 42T chainring will fit? Thanks for your help.

Oh ok so did u use the Stock crank arms? From the 2x8 set up? CAUSE I got the same set up almost I got the Shimano 1x11 and I purchased the Deore XT Crankset 175mm and I was confused on what Bottom Bracket to get.. originally I ordered this one lundeng OEM ShimanoDeore XT BB-MT800 Bottom Bracket, 68mm / 73mm Black but it was going to take forever to get here from Amazon then I noticed SHIMANO (UN26 Cartridge Bottom Bracket its still the bb M800

so the hollowtech would fit in most center bikes 2:40, mine look like yours, so what size did you buy, also those would fit with the press fit

Did you use normal grease for BB or anti-seize one?

My old mountain bike that I’m refurbishing is 68mm width but the inner diameter 33mm. Will a hollowtech bb fit that diameter? Sorry I’m new to bikes so trying to learn as I’m rebuilding. Thanks

Would you need to replace your crank arms and chain ring as part of this or would the ones used before on the square taper fit on the new bb?

@rp.aguilera

3 жыл бұрын

no if you change the BB for a different type. If you replace the BB with same square tapered type you can use your old crankset.

I have a TY-501 42/34/24 with a HG20 8-speed now. Where I ride I don't really get out of the 34. I'd like to swap the cranks to a single 34 and leave the cassette alone for now. Is that possible and what crankset would you recommend for a lower end bike as an upgrade?

What crank/chainrings are those in the vid?

I tried it on my Carrera Hybrid, changed it to single using a Shimano FC R7000 50T with a Shimano SM BB52 BB, the axle length was too short making the cranks hit the chainstays, went back to a square taper in the end!

@Bikeops2021

3 жыл бұрын

@@LoveMTB Yeah put all the spacers in that come with the BB & added another 2mm spacer & the crank just cleared the stay, however, as I'm sure your expecting, it was spaced over that much there was not enough left on the drive side to fit the crank on.. 😂 At the time I knew nothing about BB's so relied on my LBS to recommend & supply me with what I needed to do the job.... At a cost of £200.00 I quickly learned & swiftly returned the parts & sourced a new square taper BB & single narrow/wide chain ring with cranks & completed the job for around £60.00

mt800 or pressfit which would be the most suitable for bike with boost system?

Thanks for the video. I recently bought a 2021 Marlin 7 and would like to upgrade the FSA, 73mm, threaded cartridge, 122.5mm spindle BB. Any suggestions?

@massiveattackdrop

3 жыл бұрын

@@LoveMTB The 2021 model has a single crank already, I was just thinking of changing the bottom bracket components and seal it off like in road bikes, perhaps this could make long pedaling sessions smoother.

I have a Shimano Tourney double chainring. It says to use a BB of 110mm. The BB I have is a Shimano un300 110mm, I'm worried that the crank will be too close the the frame and the inside chainring might rub against the frame?? Does the inside of the crank seat up against the chain stabilizer collar? The BB is for a non chain case.

Shimano Deore XT BB- MT800 Bottom Bracket Cups - English Thread Cups will this on fit my stumpy 2019 alloy st thanks

I am using polygon premier 5, which the cartridge BB. Can you name the exact tools required to service that ?

Looking for an upgrade to my bb un 55, 37-24t, 68mm x 110mm. If possible?

Why must remove the bb from the non drive 1st? Is it a need to or just preference.

not have problems with the transmition in this moment?

it is okay when you apply 2 spacer on drivetrain side?

Just want to ask it is compatible to trek marlin if i will change my crankset to GRX 600 1X? Does bb is also fit to 73mm? Pls. Advise & thanks

what deferent after you changed with new part

is that all BB inner diameter the same for hollow type BB??