Schwinn S29 Men's 29" Wheel Full Suspension Mountain Bike (18"/Medium Frame Size), Black Schwinn aluminum 29r full suspension frame with SR Suntour suspension fork The SRAM 3.0 rear derailleur and SRAM 3.0 21 speed trigger shifting will provide ultimate shifting for quick gear changes Front & rear disc brakes SR Suntour 3 piece alloy cranks Alloy 29r wheels