Please ensure you have a 13x compatible wheelset to be use this product Designed from scratch to give you optimum performance, the best steering experience and maximum reliability for your gravel, all-road and endurance riding. The Ekar GT derailleur has been refined to ensure easier set-up, maintenance, and modularity. Durability has been improved by utilising premium-grade aluminium components. A new pulley design with larger holes makes cleaning easier and minimises dirt accumulation.A new Clutch-Locking system and improved regulations setting allows worry-free maintenance. The dedicated 1x system and 13 speeds make it effective, the 9-tooth sprocket allows for the birth of a complete range of gear ratios with short evenly spaced shifts and well-maintained cadence levels. Carbon fiber-reinforced polyamide and anodized 7075 and 6082 alloys are skillfully combined in the Ekar GT rear derailleurAos body and cage, for the best blend of strength, durability and light weight, ensuring long-term reliable working and to withstand the knocks, sand and dust of hardcore gravel riding, while stainless steel bolts with special surface treatment are used for strength and long-term resilience in the toughest conditions. Technology Revolutionary Clutch Lock design: for swift and easy wheel removal One cage size for all cassettes with enhanced modularity 2D parallelogram trajectory offering precise mechanical movement specific for 13 sprockets Improved regulation settings for a quick setup and easy maintenance New Pulley design with larger holes to facilitate cleaning and avoid dirt accumulaton Specification Only for use with Ekar 1x13 speed groupsets Suitable for Gravel and All-Road riding Carbon fiber-reinforced polyamide and anodized 7075 and 6082 alloys New Pulley design for easy cleaning and less dirt accumulation Compatible with all 4 Ekar GT cassette options - easy to switch for gearing changes Weight: 310g