Mongoose Bolt 24-Inch Dual Suspension Mountain Bike 24-inch dual-suspension mountain bike with high-tensile steel frame Handcrafted Hi-Ten rear suspension system with suspension fork Front and rear alloy linear pull brakes with alloy brake levers 21-speed Shimano Revo twist shifters; 7-speed Shimano derailleurs 2-material stitched saddle; 24-inch wheels; 1-year warranty