Highlights
Description
Maximum strength-to-weight ratio is achieved with X-Dome machined 10-cog structure. 10-50 spread equals or exceeds range of heavier 2x drive trains. Fits the same XD drivers that are used for SRAM 10-42 11 speed cassettes. Largest cog is aluminum. Tooth profiles provide better up and down shifting and improve chain retention. Titanium Nitride surface treatment reduces friction and enhances wear.