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Built with high-quality stainless steel bearings
Please note that installing this oversized derailleur cage typically requires replacing your chain to accommodate the larger pulleys
you can further improve performance
This set replaces the bolts that hold the upper and lower pulley
Trek BB90 for Sram GXP cranks Bearing Type:Ceramic Bearings Built with high-quality stainless steelThis bearing set is ready to plug a Sram GXP crank in a Trek BB90 road frame. BB90 was used on Trek's carbon road frames pre 2021. For current carbon road and gravel frames, look at T47 Internal. For aluminum frames and mountain bikes, have a look at the BB86 BB92 collection. Choose road bearings for road bikes, cross bearings for cyclocross or if you frequently ride your road bike on wet roads.
