TWOOC 11T Aluminum Alloy MTB Bicycle Derailleur Pulley Wheel Cycling Bike Ceramics Guide Roller

Specification:
Brand: Twooc
Item name: Bicycle guide wheel
Material: 7075 Aluminum alloy
Size: 41.7mm
Weight: 10g
Suit for: Screw holes diameter 4mm/5mm/6mm
Use: 8/9/10/11 speed

Package Included: 
1 x Bicycle Guide Wheel