SRAM EX1 Rear Derailleur - 8 Speed Long Cage Black MFPN=ISMMAF203SPA Shimano Alfine S501 Chainring Guard

Shimano Alfine S501 Chainring Guard

Fits most other standard 9/16" threaded tubes of grease

flat head #3

Rear Axle 12mm Thru x 148mm Rim Width (Internal) 29 Cassette Body Type SRAM XD 11/12 Speed Wheel Size 27

SRAM EX1 Rear Derailleur - 8 Speed Long Cage Black MFPN=ISMMAF203SPA Shimano Alfine S501 Chainring GuardSRAM EX1 Rear Derailleur 8 Speed Long Cage Black. The EX1 drive train was designed specifically for the demands of electric assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAMs high end MTB parts provide high value quiet operation and ease of service. X Horizon design minimizes chain slap maximizes 1x drive train performance Engineered for