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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
*This product may require spacers to properly space the crank
GS cages ONLY
If it is at 68mm
Our 79mm bottom bracket features a Shimano-optimized design is set to the narrowest stance the crank set allows
and most others
Trek BB90 GXP Bearings Bearing Type:Ceramitech *This product may require spacersInfo Installation Instructions Video Specifications JUST THE FACTS: BB90 is the mountain bike version of Trek's proprietary Direct in frame bottom bracket system. No cups or extra hardware required. With Trek BB90, the bearings press directly into the frame. Our Trek BB90 GXP bearings work with all GXP road bike crank systems from Sram and other manufacturers no matter how many chain rings you run. How do I know if my bike needs a Repair Kit or a
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