Press fit 30 to sram GXP adapter

[scotts]

Hi all,

 

I'm sure this topic has been covered before but any advice would be greatly appreciated.

 

I'm looking for an adapter to fit a Sram GXP crank into a PF30 frame. The ID of the bb shell is 42mm.

 

Cheers

[Vinnydabutcher]

Most bike shops have them now days.

 

Wheels manufacturing makes some and there are some others too.

 

Shouldn't be to hard to find.

 

PM me if you don't come right.

[carbon29er]

SRAM make the part, inserts into the BB30 shell to convert it into a BSA threaded BB.

[scotts]

Thanks, so will this do the job?

http://www.cwcycles.co.za/product/sram-pressfit-30-bsa-adapter

[Thomo]

Thanks, so will this do the job?

http://www.cwcycles....-30-bsa-adapter

 

That seems to be the one.!

[Vinnydabutcher]

Yip - That is the one option - then you have to run a std GXP outboard Bottom Bracket on it.

 

The other option is to get a BB30 bottom bracket and add the spacer set to be able to accommodate the GXP Crank. Either will work.

[LazyTrailRider]

IMHO it's not worth fiddling with adapters, throw away or sell the existing BB (if you already have one) and just get a full new press fit GXP BB. It's a "normal" GXP bottom bracket except that it doesn't screw in.

[Vinnydabutcher]

Agreed - just be carefull - you get 3 different types op pressfit BB`s.

 

1. GXP Pressfit - made for older, smaller BB shells for GP crank - think the OD is 32mm

2. PF30 pressfit - made for BB30 cranks - 46mm OD

3. BB30 pressfit - made for BB30 cranks - 40mm OD

 

Measure your BB ID before you buy - there are always options on configuration.

[scotts]

IMHO it's not worth fiddling with adapters, throw away or sell the existing BB (if you already have one) and just get a full new press fit GXP BB. It's a "normal" GXP bottom bracket except that it doesn't screw in.

I already have a pressfit GXP bb but it's too narrow for the shell on my frame. The frame has an ID of 42mm. I would like to avoid adapters if possible I agree. Edited April 14, 2014 by scotts

[Vinnydabutcher]

Then the best bet will be a new crank.

 

BB30 has a 30mm OD on the crank spindle.

 

GXP is 24mm with a step down to 22mm on the non-drive side.

 

GXP is also wider than BB30.

 

Thus - you will need a spacer to take op the space between the crank - 24mm and the bearing 30mm and also a bit of width.

 

I run spacers on my Spearfish and have not had any hassle as yet - if that helps.

 

Only other option is a new crank.

 

Spacers are a lot cheaper than a new crank.

[LazyTrailRider]

I already have a pressfit GXP bb but it's too narrow for the shell on my frame. The frame has an ID of 42mm. I would like to avoid adapters if possible I agree.

 

Ah OK, my bad...

[scotts]

Spacers it is then! Thanks for all the info, much appreciated