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BBB Cycling Rollerboys Derailleur Pulleys Shimano GRX 11T-13T BDP-08

Original price was: €25.00.Current price is: €23.00.


The RollerBoys will make your bike ride so smooth that you will never stop anymore!

The composite material is strong and durable and the special teeth pattern makes sure you can shift to a higher gear with the speed of light! High-quality pulley wheels are a must-have for every serious bike rider, with the RollerBoys you are good to go!

Features of BBB Cycling Rollerboys Shimano GRX 11T-13T:

  • Composite material provided by EMS Swiss, with 40% glass-fiber mixture 
  • Sealed bearings with aluminium cover for optimal durability 
  • Compatible with 11-speed Shimano GRX (810/815) 
  • Bearing material: CrMo