SPECIFICATIONS ~ Four Piston Forged Caliper ~ Tool Free and Indexed Reach Adjust ~ 2x16mm/2x14mm Pistons ~ Light Weight Hybrid Pistons (ceramic/alloy) ~ CNC caliper with cooling fins ~ Aaron Gwin Designed Lever Blade ~ Compatible with Shimano I-spec II, Tektro HD 3.5 Adapter for SRAM Matchmaker ~ Weight: 312g (Front) In 2016, TRP began working with reigning UCI DH World Cup Champion Aaron Gwin. Out of the gate, he was impressed with the initial level of performance, but he did have a list of improvements needed to achieve world cup winning performance. Working closely with the TRP development team, improvements were made to every part of the brake necessary. They were then tested on the world cup circuit throughout the season. The result is G-Spec, Aaron asked and we delivered every detail. With no expense spared creating G-Spec brakes, every rider can now stop with world cup winning performance. The G-Spec Trail SL places all the best features from the G-Spec DH brake into a lighter package. If you are wondering what the difference is between our downhill brakes and the new G-Spec Trail line just think downhill power tuned specifically for the wide range of speeds experienced while trail riding. The G-Spec Trail SL gets the same finned caliper body as our downhill brake but mismatched pistons(2x14mm, 2x16mm) allow for improved modulation. The Aaron Gwin lever blade gets mounted to the lightweight trail lever body and offers both direct mount shifter options. 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