. The ENVE M635 Carbon MTB Rim is the ultimate, all around mountain bike rim design. Satisfying and rising above the demands of the modern era of mountain bike riding with a wider rim width than the M630, for use with tyres up to 2.8" in width. Even More Grip, Traction and Rolling Performance. This internally wide rim ensures traction, rolling performance, tubeless excellence, stiffness and lightweight performance are as great as they can be. The M635 is designed to provide the perfect tyre profile with tyres between 2.5" and 2.8" where they are ready to tackle any obstacle or challenge you can throw at them. The wider rim width provides additional traction, grip and rolling performance Ready for Anything, Lightweight, Stiff and Strong. The M635 rim is perfect for many areas of mountain bike riding; it is a true all rounder and is ready for anything. Should you require a lightweight wheel for your trail bike, but still needs to be able to tackle the roughest of terrain, a high mileage adventure cyclist, the alpine epic explorer or the weekend warrior, this rim is designed to outperform anything you can imagine and anything else available on the market Features Material 100% Unidirectional Carbon Fibre Use Trail Recommended Suspension Travel 100 160mm Rim Depth 26 5mm Rim Width Internal 35mm Rim Width External 43 5mm Spoke Hole Count 28 Recommended Tyre Width 2.5 2.8" Weight 414gTechnologies Application Specific Design Each rim and wheel model in the ENVE M Series is designed specifically to provide exceptional performance for the intended riding experience. The M Series M5, M6, M7 and M9 follow the optimised descend and climb performance outputs that have been refined to ensure you are selecting the correct rim for your intended riding style and to get the best performance from the model you need. Hole Count The spoke hole counts have been considered on the construction of the ENVE M Series rims to ensure that strength, weight and lateral stiffness are optimised to ensure performance output is as high as it can be. For example, the M5 series is a Cross Country orientated rim, which features 24 spokes holes to save weight without negating structural strength in any way. On the flip side, the M7 and M9 series are intended for Enduro and Downhill where rapid, consistent rim abuse over demanding terrain is the basis of the riding style, these rims have 32 spoke holes. Full Carbon Laminate Using 100% unidirectional carbon fibre, the best and highest quality materials, ENVE constructions deliver the highest level of performance. Suited for use anywhere on the road or mountain. This high end carbon construction provides a super stiff, flex free construction that is impact resistant, compliant and perfectly suited to meet and surpass the demands of modern cycling. Protective Rim Strip This Rim Strip provides increased tubeless performance, eliminating the need to reinforce rims with air sealing rim tape. This tape provides a protective buffer between the rim and the trail, while also providing superior snake bitepinch flat protection should you prefer to ride using tubes Buy ENVE Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.