SCREW ON CLUSTER – 8 Speed, 13-28T, Falcon, BLACK

FUNN ZIPPA BASH GUARD features CNC machined 7075 heat treated aluminium back plate, and replaceable thermoplastic polymer bumper that is both strong and light. It will keep your chain ring and chain set safely protected as you zip through rock gardens and

If you need to replace the pulley wheels for your Shimano Ultegra or Ultegra Di2 rear derailleur, this is the correct set to keep your premium drivetrain humming along with quiet, low friction precision.