Guard version of 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.
- Full Guard
- 1/8" Teeth for standard BMX chain
- 15/16" with 19/22mm adapter