What surface treatment/coating is SRAM using on new RED chains? November 04, 2020 20:04 Updated It uses our Hard Chrome™ surface treatment making the chain extremely strong and durable. Related articles Is a special chain tool required for new RED and Force eTap AXS™ road chains? How does the new SRAM RED chain lifespan compare to SRAM’s 11-speed SRAM RED chains? What cassette size ranges do you offer for RED and Force eTap AXS™? What chain lubes do you recommend for new SRAM RED and Force road chains? What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require? Comments 0 comments Article is closed for comments.