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Shimano Ultegra R8000 11 speed cassette provides high performance gear combinations that provide superior rider choice
S Upper: ZS44
Compatible with the following bottom bracket standards: BB386 EVO
It is also reusable for many applications and is biodegradable
Length: 48mm
PAWS 4.1 Freewheel Size:16t Shimano Ultegra R8000 11 speedACS threaded freewheels that are focused on durability for standard thread applications. Nickel plated sprocket ring fits 1 8 and 3 32 chains Cold forged for high torque strength, and increased durability Three pawl design provides engagement every 12 degrees (30 steps total) Fits Standard 1. 37" x 24tpi hub threads Removable with standard 4 prong tool
