About this item OPTIMIZED FOR 36T-52T ROUND CHAIN RINGS: Specifically designed to work with round chain rings ranging from 36T to 52T, ensuring smooth and reliable chain retention for 11 and 12-speed drivetrains. Not compatible with oval chain rings for optimal performance in demanding conditions. FULLY ADJUSTABLE DESIGN FOR PRECISION FIT: Offers complete adjustability for height, center-line, and angle to ensure perfect alignment and chain retention. Compatible with both braze-on mounts and braze-on adapter clamps, making it versatile for a wide range of setups. ENGINEERED FOR EXTREME CHAIN RETENTION: Tested and designed to keep your chain securely in place under the most abusive conditions, whether you’re racing gravel, cyclocross, mountain biking, or road cycling. Built to withstand the power of world tour sprinters under heavy load. CNC MACHINED FROM DURABLE 6061-T6 ALUMINUM: Crafted from high-quality aluminum for unmatched durability and precision, this chain guide features no plastic parts, making it highly resilient. Comes with stainless steel hardware for added strength and corrosion resistance. MADE IN THE USA: Manufactured in Boise, Idaho, this chain guide is crafted with high-quality materials and precision engineering, offering long-lasting performance for your cycling needs. › See more product details