Box Three Prime 9 Chain-3/32" gear-size-45-2t They use a Box One

They use a Box One front and rear rim with 36 hole Box Three Pro Hubs

Material: 60 TPI casing

Rated up to 110psi

HARD PLASTIC END - Molded over the aluminum endcap

Box Three Prime 9 Chain-3/32" gear-size-45-2t They use a Box OneThe Box Three Prime 9 Chain 3 32" Polished is treated with an anti corrosive to make this one long lasting chain. A great all around chain, it has a specific link spacing designed to better work with modern chainrings. FEATURES Our Best All Rounder Chain Polished & Treated Protection Includes Connecting Link Durable Hardened Solid Pins Wide Narrow Chainring Compatible Cassette Compatible with HG Freehub Bodies IMPORTANT NOTES Compatible with BMX 3 32"