Blackspire Chainring E-bike chainring 64/24t 9sp 10sp 11sp - 595-4242E

E-Bike 104mm and 64mm performance chainrings. CNC machined from 7075-T6 aluminum for durability and lightweight. Outer & Inner rings are cut from 0.160” thick material. Middle rings are cut from 0.190” thick material. Outer & Middle rings feature strategically placed shift pins. Shift pins are made from high quality stainless steel for longevity. Outer & Middle rings feature engineered shift ramps for flawless shifting. For use with 9, 10, or 11 speed drivetrains. Anodized in Black with laser etched graphics. *104/38T & 104/40T are designed for 2x drivetrains* *104/38T requires the use of a 64/24T or 64/26T granny ring. 104/40T requires the use of a 64/26T or 64/28T granny ring*