9.2 average score from 34 reviews

RollerBoys Ceramic 13T

Model number: BDP-19
  • 11x13T Ceramic derailleur pulleys
  • Ceramic bearing for minimal resistance and exceptional durability
  • Composite material provided by EMS Swiss, with 40% glass-fiber mixture
  • Sealed bearings with aluminium cover for optimal durability
  • Lubricated with special ceramic light oil for extra smoothness
  • Compatible with 12-speed Shimano MTB groupsets
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RollerBoys Ceramic Derailleur Pulleys

The RollerBoys Ceramic 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! The ceramic bearings make sure your pulleys will roll super smooth. High-quality pulley wheels are a must-have for every serious bike rider, with the RollerBoys Ceramic you are good to go!

RollerBoys Ceramic 13T RollerBoys Ceramic 13T


  • Pulley size 13T
  • Bearings material Ceramic
  • Gears 12-speed
  • Compatible with brands Shimano
  • Part materials Grivory EMS
  • Narrow wide No


  • Weight (g) 29