E Thirteen Direct Mount 2x MTB Shiftring KitProviding a superb high-quality performance, this Shiftring set mounts directly to the TRS series cranks and is optimised for use with all chainguide systems. Engineered from top-quality aluminium, these chainrings shift smoothly and quickly throughout the gear range and provide exceptional durability.Features: Direct Mount Shiftring sets for TRS series cranks Integrated ring set mounts directly to crank arm 7075-T6 aluminium construction with 4mm width Optimised for all chainguide systems to prevent chain jamming Requires spider lockring removal tool Tooth Count: 38/24TBuy E Thirteen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.