A QUICK-CHANGE DIRECT MOUNT CHAINRING SYSTEM Switch was developed to reduce the cost of replacement chainrings, increase compatibility with new offsets and to make the process of changing your chainring much faster and simpler. ~ Cheaper Replacement Cost - Replacement rings are a fraction of the cost of a complete direct mount chainring ~ Quick Change - Replace your ring in less than an minute, using only a 4mm hex key. Tailor your gearing to the terrain that you're riding ~ Enduro World Series Champion Winning Narrow Wide tooth profile keeps your chain in place on the roughest terrain ~ 4 Ring Sizes (28, 30, 32, 34T) ~ 2 Profiles - both Round and Oval ~ 12 speed ring designed to work with all 10, 11, and both Shimano Hypergilde+ 12 and SRAM Eagle 12 speed chains. ~ Get ultimate traction with Oval rings by smoothing out the torque you deliver to your rear tire SPECS Material: 7075-T6 Aluminum Oval Rings: 12% ovality (32T is equal to a 30T-34T range), 115° clocking from crank arm puts the major axis in your power stroke Compatibility: All Switch Carriers; 10, 11 and 12 Speed Chains Color: Black Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER