Schwinn Solution GSX Men's Mountain Bike (26-Inch Wheels, 20-Inch Frame) Strong & Durable N'Litened Alloy frame with epicenter seat stay Shimano-equipped rear derailleur with Sunrace M-53 shift Trail-tuned saddle for comfort Suntour XCC-T202 alloy 22/32/42T with Chainguard 36-hole TM-19 alloy rims