Mountain Bike Reviews Forum banner
1 - 9 of 9 Posts

·
Registered
Joined
·
105 Posts
Discussion Starter · #1 ·
Hi,

Just wondered if anyone has info about the following, my local Specialized dealer seems unsure-

I have an 09 S-Works Epic with a factory fitted press-fit XTR bottom bracket- the frame was purchased as a frame/fork, not a complete bike. Whilst this is handy because a standard XTR crank can be used, I'd like to upgrade to to an S-WORKS carbon crank-

Does anyone know if it possible to extract the press-fit BB and fit the S-WORKS bearings and crank without voiding the warranty?

Any info/advice appreciated....
 

·
RiffRaff
Joined
·
429 Posts
Yep. Iv worked on both Frameset and complete and dont remember there being any diff. They shoud both be OS press fit.
 

·
Registered
Joined
·
105 Posts
Discussion Starter · #3 ·
HTFR said:
Yep. Iv worked on both Frameset and complete and dont remember there being any diff. They shoud both be OS press fit.
HTFR- thanks for the info- not entirely sure how to pull the press-fit bearing out- hopefully the specialized concept store here in Melbourne will be able to sort it....
 

·
Registered
Joined
·
1,435 Posts
Yeah, no problem going OSBB.

Have the shop knock the plastic cups out carefully as to not damage the inside surface of the BB. It shouldn't be too difficult.

You will need to have your shop also get some of the snap-in retaining rings that act as OSBB bearing stops. They fit inot the grooves inside the BB that you will see once the Shimano cups are out.

Make sure to use the "slip-fit" loctite (it is green, not red or blue) when pressing the OSBB bearings in and you will be good to go and smooth as butter!
 

·
Registered
Joined
·
105 Posts
Discussion Starter · #5 ·
ARider said:
Yeah, no problem going OSBB.

Have the shop knock the plastic cups out carefully as to not damage the inside surface of the BB. It shouldn't be too difficult.

You will need to have your shop also get some of the snap-in retaining rings that act as OSBB bearing stops. They fit inot the grooves inside the BB that you will see once the Shimano cups are out.

Make sure to use the "slip-fit" loctite (it is green, not red or blue) when pressing the OSBB bearings in and you will be good to go and smooth as butter!
Thanks for info ARider, much appreciated- you might be able to answer the following too- will the new Spec/Fox shock/brain units fit the 09 S-works Epics? Is it likely that I'd notice the difference if I updated to the Fox- is it likely they will be available...

Cheers
 

·
Registered
Joined
·
2,423 Posts
ARider said:
You will need to have your shop also get some of the snap-in retaining rings that act as OSBB bearing stops. They fit inot the grooves inside the BB that you will see once the Shimano cups are out.
They are called the circlips. They sit flush with the inside of the bearings to hold them properly in the frame.
 

·
Registered
Joined
·
1,435 Posts
bobsouth said:
Thanks for info ARider, much appreciated- you might be able to answer the following too- will the new Spec/Fox shock/brain units fit the 09 S-works Epics? Is it likely that I'd notice the difference if I updated to the Fox- is it likely they will be available...

Cheers
Specialized and Fox brain shocks are interchangable, no problems.
 

·
RiffRaff
Joined
·
429 Posts
ARider said:
Yeah, no problem going OSBB.

Have the shop knock the plastic cups out carefully as to not damage the inside surface of the BB. It shouldn't be too difficult.

You will need to have your shop also get some of the snap-in retaining rings that act as OSBB bearing stops. They fit inot the grooves inside the BB that you will see once the Shimano cups are out.

Make sure to use the "slip-fit" loctite (it is green, not red or blue) when pressing the OSBB bearings in and you will be good to go and smooth as butter!
Weird. I was told not to use the green locktite on those frames. Not saying your wrong because I was told to use it on trek BB30's. Have you had a problem when not using Locktite?

Circlips should come with the crankset.
 

·
Registered
Joined
·
1,435 Posts
If you use grease only it sometimes can develope a creak, especially after riding in the mud/bad conditions. With green loctite you are golden.
 
1 - 9 of 9 Posts
Top