Features:
Brand new and high quality
Bike Cycling Aluminium Jockey Wheel Rear Derailleur Pulley 11T
Teeth: 11T
Bearings: Upgraded RS bearing.
Design for outdoor Bike

Specifications:
Type: 11 Gear Guide Pulley 
Color: Random
Material: Aluminium
Size: 5mm (D)
Net Weight: 9.8g

Inner diameter:about 5.2mm

Package Includes:
1 x Wheel Rear Derailleur Pulley (11T)