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• Tapered
Ultralight 20mm Socket Insert - for the Otso Cycles Tuning Chip and other 20mm socket applications
With two BOA® dials
Material: 6061-T6 aluminum
Dished towards the frame) is for 52mm chainline for Boost bikes
110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks locally • TaperedThese chainrings are for Shimano GRX cranks. They feature our patented Drop Stop design for the best wear life, chain retention, and mud clearance. Drop Stop ST is specifically for the Shimano 12 speed Hyperglide+ chain, which is used by GRX 12 speed. Drop Stop B works with all other 9, 10, 11, and 12 spd chains, including SRAM Flattop. Compatibility Aero chainrings available in 46T 52T. Sizes 36T 44T are non aero. Aero chainrings are NOT compatible