Promax C-1 Chain Tensioners for 3/8/10mm Axles
C-1 chain tensioners are extruded then CNC-machined from 6061-T6 aluminum for optimal strength and low weight. Two mounting holes ensure adjustability on most frames. When used properly, they will protect your frame dropouts and help hold your rear wheel in place.
- CNC-machined AL-6061
- Two axle hole design