X10SL DLC: superlight chain for use with 10-speed Campagnolo/Shimano/SRAM with Diamond Like Coating for extra durability, 253g X10SL: superlight chain for use with 10speed Campagnolo/Shimano/SRAM (Gold - X10e sport feature optimized pin power and enhanced durability of use with strong mid-motors EPT (EcoProTeQ) chains double the rust resistance compared to Rust Buster treatment. The smoother coating results in less noise, optimum performance and maximum rust resistance X10.93: upgraded version of the Z9000 chain stretch-proof, super narrow chain for use with 10-speed Campagnolo/Shimano/SRAM