BD-JW12 - 17T Ceramic bearing, Derailleurwieltje, Roue de dérailleur, Jockey wheel

Number of teeth: 17T  (available with 11T, 12T, 13T, 14T, 15T, 16T, 17T)

• ceramic bearing
• narrow/wide teeth
• deepen tooth marks reduce chain drop
• circlip: prevent bearing from sliding left to right
• alloy 7075 material
• alloy CNC machined body
• Diameter: for 4/5/6 mm derailleur screw
• Derailleur screw included
• Weight: ultra light - 18,7g

Suitable For Most Rear Derailleur On The Market, Support 9/10/11 Speed

Bicycledropouts Jockey Wheel

• the ceramic inner bearing, specially designed for cycling, has minimal friction that significantly improves performance thanks to a much smoother transmission，it can effectively restrain the horizontal swing of the chain and make the speed change more accurate.
• circlip type design：do not worry about the bearing will rub the edge and cause abnormal noise. two adapter are given as a gift, which is more compatible and can be converted into 4/5mm bearings after installation, with flexible rotation.
• the external use is 7075 aluminum with the best strength of aluminum alloy, which is corrosion resistant and lightweight

How To Choose The Correct Specification?

The number of teeth is less than or equal to the number of teeth of your original guide wheel
The chain is only suitable for 9/10/11 speed chains