The S&M L7 Spline Drive chainwheel features a 7 spoke design that's CNC machined from 7075-T6 aluminum with a heat-treated chromoly splined insert for use with 19mm 48 spline spindles. Squared teeth reduce wear and are offset for better chain alignment.
Thickness: 1/4" (6.4mm)
Adapter: Included (Splined for 19mm 48 splined spindles only)
Weight: 2.7 oz (25T)