How to remove a Truvativ GXP bottom bracket

nicduck1

Rebuilding a stumpjumper fsr 06. Bought a new bb for but i am not sure how to get the excisting bb off. Its a Truvativ GXP that came with the bike. Do i need a special tool to get it off or is there an easy method.

supersonic

Have a read of Park Tools website, they have guides for this system and a list of tools needed.

timberjack

if its the same as my old one (07 stumpy) it will have 2 allen screws in the none drive side, wind the inner one anti clockwise and this pushes against the outer one and pushes it off, its really easy

Tank-slapper

Yes, you need an 8mm hex to remove the left crank (assuming the larger, outer bolt is in place). Then the right crank and axle will pull out. To remove the BB cups, you need one of either of these:

http://www.bikegoo.co.uk/product.php/153/pedros_bb_wrench_for_external_bb_cups
http://www.bikegoo.co.uk/product.php/148/pedros_bb_socket___external

The second one will let you use a torque wrench.