• Alfine chain tensioner for use with vertical dropouts• Dual pulley design can be used with double front chainring• Maximum front difference 16 tooth.
Shimano Alfine Chain Tensioner CT-S500 Dual Pulley Silver for IHG Single Speed
Shimano CT-S510 Alfine chain tensioner - silver
Shimano CT-S510 Alfine chain tensioner - silver - MRRP £29.99
Chain Tensioner Roller Pulley Guide Wheel Chain Tensioner Roller Chain
Motorized Bike Chain Tensioner Chain Adjuster Spring Loaded Chain Tensioner
