These are the latest snail cam chain tensioners from Comas.
CNC machined of finest 7075-T6 aluminium and weight optimized with six cut out millings.
The 49 click stops guarantees a precise chain tensioning and adjustment of your wheel.
Bore hole: 10mm
Minimum adjustment distance (from the axle centre to the nearest end): 9.5mm
Maximum adjustment distance (from the axle centre to the farthest end): 22.5mm
Colour: Black anodized