100% CNC machined from 1/4" thick 7075 aluminum plate in the USA. Multiple bore sizes available. 3/32 chain.
Sizes: 25t - 50t Colors: Black, Silver, Red and Blue. Bore Sizes: Profile Universal Spline Drive* 19mm Traditional Mount 22mm Traditional Mount
*Spline drive insert is not included. Follow link to purchase.*https://www.jwmachininganddesign.com/products/spline-drive-insert
Weights: 33t 4.0oz, 36t 4.4oz, 39t 4.7oz, 42t 5.6oz, 44t 6.0oz, 47t 6.9oz