Promax C-1 Chain Tensioners sinz *Thin enough to use on

*Thin enough to use on the narrowest of adjusting cones

* Alex Kennedy signature bars *

MAX PSI: 100psi

5" rims and larger)

HOLE DRILLING: 28

Promax C-1 Chain Tensioners sinz *Thin enough to use onThe Promax C 1 Chain Tensioners at J&R Bicycles are a lightweight and affordable way to maintain a taught chain while securing your rear wheel and dropouts. Made from extruded and CNC machined 6061 T6 aluminum alloy, these tensioners are strong without adding much weight to your frame. The two hole axle design fits 3 8" and 10mm axles. Sold in pairs. FEATURES CNC machined 6061 T6 aluminum For use with 3 8" and 10mm axles Two axle hole design