Please ensure you have a 13x compatible wheelset to be use this product Please note: The Ekar rear derailleur is not compatible with the new 10/48T Ekar GT cassette The EKAR GT is easier to pedal and provides a wider selection of gear combinations than previous iterations. With four 13-speed cassette options, ranging from pro to newcomer, thereAos a gear combination perfect for any rider. Plus, with a brand new 10-48 cassette, the EKAR GT has never been more accessible to a wider audience from beginners to pros. The Ekar GT 13-speed cassette is available in four different options, from 9/36 (EKAR) to 10/48 (EKAR GT), which complete the range and reflect the different specialisations on the gravel scene and each combination delivers very smooth gear ratio progression. Small jumps for the first 6 sprockets, which increase in the second half with the larger sprockets. This characteristic ensures an optimum experience on the saddle and helps you get the best from your performance on difficult routes and terrain. The wide selection of larger sprockets gives a more compact cassette for endurance events and longer gears for more adventurous riders. The cassette combinations are partnered with easy-to-replace dedicated chainrings to offer the widest range of gear ratios, smooth changing and maximum efficiency and, unlike the 2x systems, no waste. Technology 13 speed: full gear range to match or exceed any 2x system with no wastage 2-piece block: blends the strength of steel and the light weight of alloy Compact: narrow design with quick changes, lightweight and improved chain security Specification Designed specifically for Ekar 1x13 groupsets Suitable for Gravel and All-Road riding Constructed from durable steel and lightweight alloy Compatible with the Campagnolo N3W freehub body Three options available: 9/42T, 10/44T, 10/48T Weights: 9/42T (380g), 10-44T (400g), 10-48T (435g) Gear Ratios 9-36T(Standard Ekar): 9-10-11-12-13-14-16-18-20-23-27-31-36 9-42T: 9-10-11-12-13-14-16-18-21-25-30-36-42 10-44T: 10-11-12-13-14-16-18-21-24-28-33-38-44 10-48T: 10-11-12-13-14-16-18-21-25-30-36-42-48