Diamondback Response Comp Mountain Bike (2011 Model, 26-Inch Wheels) Diamondback 6061-T6 butted aluminum frame with formed top and down tubes SR Suntour XCR-LO 120mm travel fork with speed lock out lever and rebound adjust Shimano Alivio SL-M430 Rapidfire 9-speed shifters Shimano M445 Hydraulic Disc brakes with 180mm front and 160mm rear rotors 32 spoke 26" wheels with Weinmann double wall alloy rims