The Primo Solid sprocket is CNC machined from 5mm thick aluminum with no extra cutouts or unnecessary machining to help keep cost down while keeping strength up. Large laser-etched Primo logo provides a clean look and the 15/16" bore includes both a 19 and 22mm adapter to fit most spindles. 1/8" teeth
Adapter: 19mm & 22mm Included
Weight: 3 oz (25T)
Buy Primo from Chain Reaction Cycles, the worlds largest online bicycle store.