Domybest 13T MTB Ceramic Bearing Jockey Wheel Pulley Road Bike Bicycle Rear Deraille

Size: 13 T
Transmission for a bicycle,stainless steel bearing for ultra durability
5 colors for choose: Black, Silver, Blue, Red, Gold

Product Features

  • Structure: ceramic bearings
  • Material: aluminum alloy 7005
  • Diameter: 50mm
  • Setting for 4/5/6mm spindle shaft rollers
  • Apply for most rear derailleur in the market, support 7/8/9/10 speed
Bearing Bicycle Bike Ceramic Deraille Domybest Jockey Pulley Rear Road Wheel