It's so straight-forward, yet even SRAM's mechanic just got it wrong twice.... LOL

Glad I found this video as my cranks on my new bike came lose. The little 2mm pinch bolt hadn't been tightened up and I wasn't sure how much to tighten the bearing preload nut.

Got me looking at bottom bracket tools now!

@rgmtb

6 жыл бұрын

BKXC Tools are good! ;-)

@WombatPage

6 жыл бұрын

Jeff is a very handy tool to have around. Where can I get one?

@rgmtb

6 жыл бұрын

So you calling my buddy a TOOL! HAHAHAHAHA!

@jfnurod

4 жыл бұрын

What bottom bracket tool did u guys buy!?? Installing the new Eagle GX 10 - 52T groupset and I don't have the right bb tool 😭😱

@GokkunGuru

2 жыл бұрын

@@jfnurod Abbey Bike Tool DUB BSA BB tool is the best. It has tight fit and doesn’t scratch up your BB like how shitty Park Tool does. The one Geoff used is red colored cuz it’s an Abbey x SRAM collaboration design. The actual Abbey version is Irish green.

Thanks. I installed one into my 19 stumpjumper today. Wanted to make sure I did it correctly. Very nice video

@blazerman61

3 жыл бұрын

Hey how did the install go and did you need any extra stuff?..im doing the same as you with same bike so...

I am building Evil offering, so this video really helped me!

@Mia-hd6sm

2 жыл бұрын

I just got the DUB 73mm BB and Truativ Crankset. I am building 2019 Reckoning. What spacers did you end up using? My BB came with the 2 already on it for each side and then 3 various sizes separately in the box.

Wow that bike is very clean.

Used to have the same bike as the one in the back so dope. Thanks this helped.

Nice video! Its good when you explain everything!

@rgmtb

5 жыл бұрын

Really glad you enjoyed it!

Great video Gene!

Hi quick question.. does d new gx bud crankset fits my gxp bb or do i really need to score d dub bb?

gene you need a million viewers!!

@rgmtb

6 жыл бұрын

I can't argue with that man! Thanks HAHAHA!!!!

I have a 2018 Canyon Spectral 6.0 AL frame and the BB says GXP and I measured the width to be 92, if I buy XX-1 do I need to buy dub or GXP groupset? my bike is BOOST

Hey buddy awesome video thank you, I have a Santa Cruz nomad 3 don’t have a chain guide so would you happen to know what spacers il need for a GX setup with DUB BB Cheers

Thank you!

@rgmtb

5 жыл бұрын

You bet man!

I’m doing this install on my SC Hightower and want to confirm what spacers you ended up using if you remember that far back? The pdf chart from sram says to use a 2mm outer right spacer for 73mm hub with chain guide which is what i have. Is this what you ended up using with your setup?

So, which tool did you use? I just bought the ParkTool BBT-69.2 as I googled the Sram DUB bb and after a long wait, it dosent fit! I also have:BBT-47,BBT-35,BBT-49.2, PraxisworksM30 and do not fit.

Just curious maybe down the track not now cheers buddy at the moment running GX sram 12 Spd

6:48 - OK so there are bottom bracket spacers and there are spindle spacers. Which spacers to fit and how many depends on your bike. Confusing - if mine is a custom frame, how the heck would I know? Do all of them come together with the crank, or are they just more loose bits I have to find, buy and have shipped over?

@MrRay645

4 жыл бұрын

I know your comment is from a year ago but both of my cranks (Truvative carbon Descendant DUB and SRAM GX DUB) did not come with any spacers in the box, and the website blows plus once you find the PDF its not exactly clear either what you need or where to get them.... looks like it will be trial an error then try and order correct spinal spacers and BB spacers for the install

@glibsonoran

3 жыл бұрын

bottom line is to make the Dub's chainline as close as possible to the chainline of the crankset you're taking off (and generally having a slightly shorter chainline is better than a slighly longer one): Chainline is measured from mid downtube to the chainring on a 1x; between the two chainrings on a 2x; and to the middle chainring on a 3x. Alternately you can measure the width of your rear hub (the axle) and determine which type of freehub body you're running, then look up the acceptable chainline dimensions.

Question. I have a 2021 Scott voltage yz 0.1. Just bought but didn’t install yet. Upgraded sram DUB press fit BB92, and a truvative descendant crankset (DUB). There are spacers in the bb package. My rear end is 135mm. How can I assure my chain line is correct prior to installation? Please help. Would love to hear what you have. Thanks a lot...beard brothers

Very nice video. It is necessary to lubricate the bottom bracket bearings when it comes from factory ?

howdy Gene..good video..thanks

Did you put the same spacers on all three attachment points behind the chain guide?

great cranks im putting them on my gravel bike

I pulled the crank set apart on my 2019 YT Capra to swap out chain ring to Absolute Black Oval and everything was fine after reassembly. There were zero spacer washer used and just that plastic ring to take on and off. Couple weeks later and a lot of riding I am hearing some creaking. Any suggestions? Thanks in advance.

@jaredzimprich6803

4 жыл бұрын

@Kleiner Helfer creaking was coming from a loose bearing on the frame's dog bone. Simple fix with tightening it up.

So even though I was told to be careful I rounded the screw for the preload adjuster. It's a common problem but I was able to find a replacement from cane creek. Says it works with dub and comes in multiple fun colors. Hope it works because it looks more solid and the screw on the sram is hot garbage. I think it's the only weakness of this setup.

Those darn chain guides!

the bottom bracket measurement is standard?

hey guys thanks for the vid , i’m currently installing a sram dub 73mm bb and truvativ descendant cranks onto my v2 santa cruz 5010cc frame. BUT i’m having trouble figuring out what spacers i need because i’m installing an MRP chainguide / bashguard as well. can you guys link me to the “sram manual” you talked about online showing what spacers to use i can’t find it !

@koreanmtnbiker2931

3 жыл бұрын

Just do what he did in the video. It should work.

Hey mate, just got a Truvative Descendant DUB boost crank and I would like some info about the spacers. In the beggining he said no bb spacers and 4,5mm outer one, then he said 2,5mm bb spacer and 2mm outer one, then in the end of the video again said the no bb - 4,5mm outer combo. So what finally worked for you? Because I am in a similar situation. I have a Specialized Enduro Como 2018 with threaded bb and have an MRP ISCG-05 AMg V2 guide. Thank you in advance.

@benjaminharvey2229

5 жыл бұрын

Just the 4.5mm spindle spacer on the drive side...and no BB spacers (the way they did it first and at the end) if you have a 73mm shell. My guess is that the spacer comes into play if your guide is attached to the BB. Since that type of guide would act as a spacer, you minimize the outer spacer by 2.5mm. Your guide is attached to the 3 ISCG mounts...so this isn't an issue. So basically you'll set it up as if you were not running a guide....then fiddle with little spacers on the ISCG bolts to line your guide up with the chainring...which is always fun.

Can you use a sram dub with non boost in the front (crankset) or do they go together DUB-Boost? Also, if I go non boost in the front, I was told I need to go with boost in the the rear cassette, is this correct?

@koreanmtnbiker2931

3 жыл бұрын

Yes Both front and rear must be boost. Or else, your gear shifting will be messed up.

I found out that there are two variants of preload adjuster. Yours tighten if rotated clockwise. There is another variant which tightens if rotated counter-clockwise like on my 2015 Stumpjumper FSR Comp. Anyhow, just follow the direction of the + arrow and you are always good to go.

@rgmtb

4 жыл бұрын

Thank you so much! You hit on something that makes it so hard to produce these videos. Things change often and it's hard to have a video always current. I thank you for helping and not acting like some folks that jump into these comments flaming creators for not having a video that stays current for every single little version that comes out. I wish more folks would be helpful like you. Thank you again!

SRAM: TAKE NOTE! There is only 1 thing to learn from this video: SRAM's Dub BB manual *is garbage* and needs a complete rewrite! First off: your spacer chart lists "MTB, Wide, & Superboost" as 3 configurations for 73mm BSA shells, but I had to spend 5mins googling to confirm that the option corresponding to the Boost cranks most users will be running is not the middle "Wide" option, but rather the first "MTB" option (anyone who has been in MTB longer than a couple years would intuitively assume that MTB = previous 142mm standard, while Wide = newer, wider 148mm Boost standard). And then there is the Chain Guide section of your chart that has even your own Factory Tech installing this crank *wrong*! Running an ISCG chainguard that bolts to the frame has NOTHING to do with chainline, but your tech didn't think this through, and thus had to re-configure spacers twice! If I have to hazard a guess, the "Chain Guide" section of your spacer chart is intended for those running plate-style guides that get clamped between the frame and the Bottom Bracket. If that is the case, SAY SO EXPLICITLY in your manual. Your CHOICE to make your Dub BB Manual (and most other SRAM manuals) *needlessly, and cartoonishly vague* has cost even this professionally-trained mechanic with 35+ years wrenching experience a half hour of additional research to be 100% certain I get my crank spacing right and don't torque your chainring right into the paint on my brand new chainstay! I have installed hundreds of Shimano and Race Face bottom brackets over the years that required *zero* spacers to install correctly. Your technical writers and engineers both dropped the ball with this BB configuration and its documentation!

@GokkunGuru

2 жыл бұрын

I had to contact SRAM for the same reasons. MTB Wide isn’t Boost. MTB in this case refers to Non-Boost and Boost.

Hey Gene love the vids. Can you and Jeff do a video on the new NX Eagle drivetrain? The one you guys did on GX Eagle a while back was really informative

@rgmtb

6 жыл бұрын

Rodrigo Curiba I was wondering if that would be helpful. I'll work on that for you folks!

@tahntalus

5 жыл бұрын

Any update on doing a review for the nx eagle drivetrain?

Bottom bracket cup tools part numbers?

I think theses are on my 19 Bronson. The spindle diameter is killing me though coming from raceface cinch.

@rgmtb

6 жыл бұрын

Can you explain more please?

Can I put this sram dub onto my Marin san quentin 3? (Sorry for my english)

@askelarsen3433

4 жыл бұрын

Your English was perfect! 😁

So if I want to change my chainring from 30 to 32, is it just the one bolt on the chainring side that is removed or do you have to disassemble the non-drive side also? Thanks

@koreanmtnbiker2931

3 жыл бұрын

Whole cranks needs to come off. Then you unscrew 3 small bolts holding the chain ring.

@thomasandrews8033

3 жыл бұрын

@@koreanmtnbiker2931 thank you! 🙂

I have one of those specialty bb tools, it’s called a channel lock.

@rgmtb

4 жыл бұрын

Thank you ;-)

@JasonKale

3 жыл бұрын

hahahahahahahaha

Any advice for installing dub BB for sworks enduro boost having 73 width having chain guide installed also. What spacers and where to place them

@rgmtb

4 жыл бұрын

Wylzeph Atanacio Sorry but I can’t help ya with that one.

@koreanmtnbiker2931

3 жыл бұрын

That seems just like the video

@Antweak83

2 жыл бұрын

Dude. Im in the same boat. Did u ever figure it out? I have the same bike

For BOOST spacing on a BSA73 DUB, what outboard spacer do I use? SRAM instructions say MTB uses 4.5mm and MTB wide uses 7.5mm. I am not sure of BOOST is considered MTB or MTB wide. Thanks PS I don’t use bash guard.

@hugor.b.6351

2 жыл бұрын

i put just the 4.5mm one on the righ side, that mtb wide not sure what the hell it is. But i saw a lot of youtube videos of installation with my bike set up and they all use just the 4.5mm for a 73 frame. I don't use a chain guide and im pretty sure that wouldn't affect the configuration if you use one like the one shows in this video (so the guys are wrong in this video), with a different type of guide like the ones that goes between the bb and the frame you have to reduce the 4.5 mm spacer because the chain guide will work like a spacer and move everything to the right.

@GokkunGuru

2 жыл бұрын

@@hugor.b.6351 Thanks for the info. I contacted SRAM and they said the same as you. 4.5mm on outboard of drive side BB for both NON BOOST and BOOST. not sure what the hell MTB wide is either. Lol

On sram instruction manual, you need a 4.5mm spacer for 73mm mm bb frame

That little cap on the drive side what it it for? It's constantly falling out on rides. I'm shocked I haven't lost it yet.

@tadsinc

2 жыл бұрын

Loctite!

Does your chain guide rub when you are in the top cog?

Does you bb creak like crazy After about 10 months it started creaking I tightened the preload thing gently it creaks so I progressively made that plastic adjuster tighter and tighter never stops creaking My brother got a new santa cruz and after like 3 months it's already creaking same thing but when we went to tighten his it looked like the mechanic that assembly his did not bother because it was loosened all the way to the crank arm

@SMILE17099

4 жыл бұрын

Mines doing the Same after 100 miles

7:51 what bird is that in the background? Seems to be so common in North America! Also heard it in Fortnite...

@rgmtb

4 жыл бұрын

HAHAHA! I have no idea. I might have been a blue jay? We get those sometimes and they start yapping back and forth to each other.

It's been 2 years. Probably time for a new bottom bracket standard. This bike industry secretly hates it's customers 😉

I'm not against DUB especially if it stays for a LONG time, but that spacer situation looks confusing AS HELL! It would've been nice if You'd show chainline being straight at one of the center sprockets, otherwise it's hard to believe that Jeff knew what he was doing and didn't eyeball the bb, so it just works with chainguide....but not with the chainline.

Compatible with specialized stump jumper 2019 ?

@rgmtb

5 жыл бұрын

I would think so but always ask your local bike shop to make sure. There are just to many makes and models out there for me to be 100% correct and I would hate to have your get the wrong product. Any reason you're looking to change over your 2019 to this?

Is the 4.5mm spacer included or you had to order it?

@rgmtb

5 жыл бұрын

Yes. The spacers discussed in this video where all in the kit. Nothing was added.

How do you fit this to a bb30 pressfit

@koreanmtnbiker2931

3 жыл бұрын

You can not.

Shram !

What about chain line?

wait , so if i have to install the dub bb i need to use a new tool ?

@rgmtb

5 жыл бұрын

El Jefe Sorry man but that is correct.

@rinky_dinky

5 жыл бұрын

@@rgmtb oh damnnnnn

What rear hub does the bike has?

@mygrc9311

4 жыл бұрын

Yeah because it sounds great. I second that question.

Blue o-ring: where does this go?! I found it laying on the floor after removing and reinstalling

54 Nm on my orbea rallon is way too tight, it makes pedalling really stiff

DUB is clear as mud.

Wait so could I run a shimano hollow tech with this crankset

Used different spacers and my chainring still hitting the chainguide, how close can I get my chainring to the frame?

6:27 that sucks, that's what you get with so short rear end and rear triangle design like this, 6:42 I recommend upgrading to Cane Creek Preload collar, it's alloy with titanium bolt. , unless you are satisfied with it, I haven't tried the Sram preload collar, but the Race face colalr was awful, www.worldwidecyclery.com/products/cane-creek-alloy-preload-collar-with-ti-bolt-for-30mm-spindles if it is compatible I haven't checked if it's compatible with this crankset but it is with the previous Sram cranks. 7:00 nice finally there is no need for extension bar and ratchet to install the rings. on my race Face cranks the nylon preloader was awful this one is clearly better, but so sure if it will spin as smoothly as the alloy collar from Cane Creek, I find that it's not so smooth and nto as accurate feel to it, with the alloy collar it was smooth and I knew for sure when it was tight.

@Nanchi

4 жыл бұрын

Did you have creaking issues with the nylon spacer I cant get 2 of my santa cruz chameleon sram dub bb to stop creaking purchased new I looked at buying that cane creak preload adjuster

@mtbboy1993

4 жыл бұрын

​@@Nanchi there are many causes of creaks for this area of the bike/these parts. crank might be loose on the axle the tolerances on the axle might be horrible, causing play in between axle and bearings, thus creaking. bearing misalignment, due to bad tolerances and machining of the bottom bracket shell. bad bearings, horrible tolerances in the bearings. the preload ring might have loosened up causing side to side play, and dirt coming between crank arm and BB, causing crunchy sounds . I don't know which nylon spacer your refer to, so I mentioned two of the possible contenders: I don't have a nylon spacer on my bottom bracket, cus I have Chris King Thread Fit 30, it came with alloy spacer, but you can buy alloy spacer to suit you BB, if using chain guide mounted to BB or iscg 05 adapter then you replace adapter or mount chain guide directly there instead of spacer. Chris king BB also comes with thin nylon spacers to get the tolerances to be just right. I think I use 2 for these thin spacers on my Geometron G1

4:50 important info. They're are no instructions in the new bb box. thx fellas

8:05 thats a short protrusion available for the crankarm to hold on to..thats kinda scary.

Why not to go with 30mm crank instead ?

@TasteLikeChicken

4 жыл бұрын

Larger spindle = smaller bearings. Smaller bearings = higher rotational velocity. Higher RV = higher heat. Higher heat = shorter lifespan. Shorter lifespan = higher TCO. ( I think ).

Looking at the Sram giude, he did the spacers wrong. Anybody agree with me? Or am I wrong? The guide state 3mm at left outer spacer, a chain guide then 5mm at right outer spacer. Anybody? Btw, I have the same bike and year. Nomad.

Groundhog Day?

Hey Gene, can you tell a difference?

@rgmtb

6 жыл бұрын

I really have not had many miles on either set but I'm going to refer back to Geoff's comment about these not being an upgrade from the existing SRAM cranks. What I mean is, going to my existing GX cranks to these DUB cranks should not feel much difference. Unless you are in the market for a new set of cranks I wouldn't recommend buying these just to upgrade. The main goal of these cranks is to help take some of the confusion out of buying cranks.

@JRasS14

5 жыл бұрын

Why did you go to the dub bottom bracket and cranks? Curious the weight difference. Read a little about the dub and they claim less contamination in the bearing and increased durability. Smaller bearing and bigger spindle from the dub design. A lot of the techs I’ve asked think the gxp having bigger bearings is ideal

Is Jeff some sort of time traveller?

Just how important is the adjuster? I accidentally over torque my pinch screw and it cracks the palstic..😭 poor me...

@rgmtb

5 жыл бұрын

How has things been going without the adjuster?

@andredeleon5512

5 жыл бұрын

I tried to glue the adjuster but still it cracks when i screw it. Maybe i will just remove it.. and try the difference.

@andredeleon5512

5 жыл бұрын

No chance... adjuster works like a spacer on the non drive side of the crankset... i hope i can find a spare...

50nm is huge

@Phen0mable

4 жыл бұрын

Not really considering the size of thread

How is this making things easier?

What happens when your pinch collar breaks

@rgmtb

3 жыл бұрын

Has that happened to you?

You said bash guard but meant chain guide lol

Wake up Jeff

Just SRAM adding another BB configuration ..... and made it more complicated while they did it ..... #SMH

Jeff must consume a lot of soy

Shram? Really?

@rgmtb

Жыл бұрын

Really

@briancole6550

Жыл бұрын

@@rgmtb I leave the "h" out of it. Like the company does 😆

Pretty poor video.

Dear SRAM - your chart is USELESS. The titles cant be more generic. What is "MTB"? what is "MTB Wide"? Specify NUMBERS or at least define what those terms mean. Is it 135 Vs. 148? Or maybe 148 Vs. AXS Wide? Do you really think the title "MTB" is self explanatory?! Especially on a product that's designed to reduce confusion and installation headaches? You gotta be joking...

I'm not against DUB especially if it stays for a LONG time, but that spacer situation looks confusing AS HELL! It would've been nice if You'd show chainline being straight at one of the center sprockets, otherwise it's hard to believe that Jeff knew what he was doing and didn't eyeball the bb, so it just works with chainguide....but not with the chainline.

@newttella1043

4 жыл бұрын

A perfect chainline to the middle cog is overrated. I rather the chainline be biased towards the easy gears because where I ride has steep climbs. It's just a tad less stress on the chain and a quieter drive train.