Brompton Bike Rear Derailleur Tensioner Pulley

Product Information
Name: Brompton Bike Rear Derailleur Tensioner Pulley
Material: Aluminum alloy
Guide gear teeth: 10
Weight: 127g
Colours: gray/silver/gold/red
Supports: 1-speed, 2-speed,3-speed, 6-speed
Internal and external shifting are available