MR243775-2RS01 OEM STEEL BOTTOM BRACKET BEARINGS WITH INNER RACE GROOVE 2 PIECES

DIMENSIONS -  24 X 37 X 7MM, 2 PIECES

PRICE DROP - Inventory Reduction

Replacing your creaky or pitted bottom bracket bearings with steel bearings has never been more affordable!  Note the inner race has a 25mm x 1.6 deep step around the inner race to clear the plastic crank insert.

Applications: BB86, BB92 bottom bracket, Trek Madone 2008, Trek Madone 7 (2014), Shimano BB90,
KONA DR DREW (2008), FSA BB90 DOUBLE OR TRIPLE 2009, FSA  MEGA EXO TEAM ISSUE '08, KONA DR DREW (2008)

Kit does not include cups or seals.


Rubber seals are pliable with just the right amount of preload to keep dirt out and rolling resistance low.


What some of our recent buyers are telling us about upgrading to our ceramic bearings:

  • I just installed my new bearings; Wow, what a difference!
  • Excellent upgrade! Great price! Thanks HubDoctor®
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Free shipping in the USA! Check out our other items,
Including our HubDoctor® Mavic® Freehubs Rebuild Kits
The cost-saving solution for rebuilding Mavic® cassette hubs.

See our other listings for the HubDoctor® Pro ceramic ball bearing freehub bushing replacement kit and our superior freehub replacement bushings!

Don't be dissuaded by the our affordable prices! These are quality ceramic ball bearings!