11T MTB Bicycle Rear Derailleur Jockey Wheel Steel Bearing Pulley Road Bike Guide Roller Idler 4mm 5mm 6mm

Specifications:Item Name:Bicycle Rear Guide WheelMaterial:Aluminum alloy body+Metal PeilinWeight:15gSize:43.6mmColor:Black,Blue,Dazzle,Gold,Green,Purple,RedApplicable:After the 4/5/6mm screw hole diameter is changed to 8/9/10/11 speed, it is almost suitable for all mountain highways with rear wheel driveTips:1. Due to lighting effects, brightne/contrast settings of the display, etc., there may be slight differences between the color tone of the website photos and the real object!2. It are measured by hand, there may be 1-3cm difference, thank you very much for your understanding!