9 average score from 49 reviews

AluBoys 11T

Model number: BDP-21
  • 11x11T CrMo derailleur pulleys
  • 7075 aluminium derailleur pulleys
  • Extra stiff for fast shifting
  • High quality sealed ball bearings
More information

AluBoys Derailleur Pulleys

Upgrading your bike with little details is so nice to do! The AluBoys will lift your bike to a higher level easily. The aluminium derailleur pulleys are super durable and make your chain roll super smooth. The stiff aluminium keeps the pulleys super lightweight. And after all, they also look amazing on your bike!


  • Pulley size 11T
  • Gears 9-speed, 10-speed, 11-speed
  • Compatible with brands Campagnolo, Shimano, SRAM
  • Part materials 7075 T6 Aluminium
  • Narrow wide No


  • Weight (g) 22