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the bore of the top pulley is different
Please note that installing this oversized derailleur cage typically requires replacing your chain to accommodate the larger pulleys
making it the perfect choice for riders who use 30mm cranksets
both mounted on the stiffest cage available
NOTE** - Not compatible with XTR M9100 12-speed brakes
PF30-DUB for Sram DUB crank sets Bearing Type:Ceramic Bearings the bore of the topThis bottom bracket fits a SRAM DUB crank set on a PF30 frame. It moves the bearings out of the frame in order to make a wider and stiffer set up. Bearing wear is greatly reduced with this wider set up compared to a standard PF30 setup with spacers. Choose road seals for road use. Choose cross seals for off road use or if you frequently ride on wet roads.
