mrdtep

Hi All,

I just purchased a CAAD10 frame and my friend sold me his sram red crankset but the problem I'm having is that the crank is the gxp and the frame is a bb30. How do I make this work or am I hopeless. All feedback is appreciated.

ColinL

you buy a bb30 to gxp conversion kit. there are many. some of them may be permanent, others advertised as removable.

it's basically a sleeve for the bb shell.

lazerzxr

Doh!

Bob Dopolina 

There are also adapters that are not permanent. You use you regular BB30 set up and add cups that reduce the axle size to GXP.

I used a Shimano version for several thousand km without issue.

M_Wales

KCNC BB30 adapter.. Using this one on my BB30 Raleigh frame with Ultegra crank..

https://fairwheelbikes.com/kcnc-bb30-...et-p-2926.html

Bob Dopolina 

^^^Not in stock and the OP has SRAM.

andrace

I used...
https://www.enduroforkseals.com/id355.html

I'm happy with it.

incredibleting

I have heard that using an adapter voids the warranty on the frame. Is this true?

topflightpro

The adapter will not void the warranty on the frame. Installing a permanent adapter and then removing it, probably will.

I've heard good things about the Wheels Manufacturing BB30 adapter cups. A friend used a Force crank on his Caad 9 with that set up and it worked well.

ColinL

yes. read through the installation instructions or email/call the manufacturer if they don't publish the documentation online.

if you see a step that talks about green loctite, that is a permanent installation.

If I were in your situation I would try something temporary like bdop was referring to in msg #4. It will be advantageous to be able to use GXP or BB30 in the future, even though your future need to upgrade from Red cranks is very low at best.

IthaDan 

Aren't Shimano and SRAM GXP/english BBs interchangeable? Serious question.

primov8

The spindle on the non-drive side Sram GXP cranks taper down to 22mm, therefore the non-drive side bearing cap is also sized to 22mm. Shimanos are 24mm on both sides of the bottom bracket cups. If a Shimano compatible bb (i.e. HSC, Token) are used, they include a step down adapter for the non-drive side to reduce it to 22mm for GXP cranks.

Psimet2001 

Wheels mfg shims. They work great. Rode them all last season on a rig where I put my GxP Quarq on a bb30 all year. Cheap, not permanent, and works with stock BB and normal GXP crank.

mrdtep

Thanks for all the great responses. So with all the solutions which is the best solution that probably wouldn't void my warranty on my frame? Thanks!

mrdtep

I think this looks like a great option. thanks Andrace

ColinL

psimet answered that in the reply before your post, #13.

here is the actual product: (google for the win!)
https://www.universalcycles.com/shopp...s.php?id=31477

IthaDan 

Perfectly concise! Thank you.

mrdtep

Thanks everyone for their help again. I decided to go with the Wheels MFG BB30 Adapter. I'll let everyone know how they work.

Painful Chafe

Sell it and buy a Red BB30 crankset.


You new someone was going to say it. But why not? You may loose a few $, but you will save on the adaptor and have the benefit of the stiffer BB30 crankset(debatable).

Bob Dopolina 

Does your frame already have bearings? I don't believe the adapters in the link come with bearings, C-Clip or wavy washers.

You'll need those.

Psimet2001 

Correct - you need the bearings and c-clips but no wavy washers. the shims stack it out to gxp width so just tighten and done.

mrdtep

So if I were to just purchase the bb30 crank and my frame already does have the bearings would I still need to purchase the sram pressfit30 bottom bracket?

https://www.amazon.com/Truvativ-Press.../dp/B003L9KJOY

Mansram01

So does this mean that eventually the BB30 adapter will fail or go bad at some point? Any potential issue for the frame, if so? Asking because I will be using these same Wheel MFG Shims. Would like to ask how long they would last but I suppose there's a lot of factors to consider.

Cynikal 

No. The bearings are the BB. Just install the crank and you are on the road.

BTW, I have a FSA SLK-Light BB30 crank in my parts bin that I'm looking to get rid of. I'd PM you but you have low post counts and couldn't reply. Email me at cbdougher"@"yahoo.com if interested.

Psimet2001 

?...no. They are what would be considered as "long lasting" as the crank itself. They are thick Derlin Cups that are molded to fit and simply take up the extra space....shims.