KMC X12 Chain - 12-Speed, 126 Links, Gold sportlegs The cage is optimized for

The cage is optimized for BTA (between the arms) bottle mounts where the natural motion is to pull the bottle sideways

Some of Arundels early test cages were in the 18-22 gram range but the bottles weren't always secure

thanks to their new flat design

wider tire profiles

Wind Tunnel ventilation

KMC X12 Chain - 12-Speed, 126 Links, Gold sportlegs The cage is optimized forThe KMC X Series has been designed with the specific characteristics of the Shimano, SRAM, and Campagnolo systems in mind and will meet the most demanding requirements. Elaborately designed and manufactured, the X Bridge technology, thanks to precisely chamfered plates, allows a smooth propulsion and perfect gear changes in all driving situations. COMPATIBILITY Compatible with SRAM Eagle, SRAM Eagle AXS, Shimano, and Campagnolo Bicycle Type: MTB,