9.3 average score from 28 reviews

RollerBoys 12T-14T sr

Model number: BDP-07
  • 12x14T CrMo derailleur pulleys
  • Narrow Wide tooth profiling ensures ultimate chain retention.
  • Composite material provided by EMS Swiss, with 40% glass-fiber mixture
  • Sealed bearings
  • Compatible with SRAM 12-speed MTB.
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RollerBoys Derailleur Pulleys

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!


  • Pulley size 12/14T
  • Bearings material CrMo
  • Gears 12-speed
  • Compatible with brands SRAM
  • Part materials Grivory EMS
  • Narrow wide Tension pulley only


  • Weight (g) 26