The Box Three chain is polished and then chemically treated to achieve corrosion resistance. All Prime 9 chains have chamfered shifting edges, solid plates and solid pins to safeguard durability. Unique inner link spacing is engineered to grab those modern wide/narrow chainrings.
- Durable Hardened Solid Pin
- Prime 9 Technology™
- Compatible with Modern Wide/Narrow Chainrings
- Compatible with BMX 3/32" Chainrings and Cogs
- Compatible with most 10,11, & 12-speed wide / narrow chain rings.