Used for Shimano CUES 9 to 11 speed E-Bike systems, this chain delivers a smooth and decisive shifting performance no matter what. Designed with a special plate technology for wider cog teeth that reinforces the efficient shifting. The EPT protection brings outstanding anti rust defence and is super easy to clean. EPT coating Ten times the protection, rain or shine. EPT chains are designed to easily withstand extreme weather conditions, including salt, high humidity, snow and rain storms. EPT chains have to pass a 650-hour salt test, resulting in an incredibly rust-resistant product. Compared to the average chain, the coating on EPT chains is more than 10 times as durable. EPT chains will get you through mountain trails and muddy wetlands like it's nobody’s business. Worried about cleaning up afterward? EPT chains are incredibly easy to clean, meaning less time spent on maintenance and more time on the bike. X-Bridge The 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. The X-series is trusted by many top athletes in professional cycling. Highest pin power: Unsurpassed riveting geometry EPT ProTeQ: Superior anti rust technology Double X Durability Plate chamfering: Accurate Shifting 1/2" x 11/128" Pin Length: 5.65mm Compatibility: Shimano CUES 9 - 11 Speed Suitable for: MTB, Cyclo-cross and Trekking