Schwinn Suburban Sport Men's 26-Inch Comfort Bike (Medium) 26-inch, 21-speed men's comfort bike great for weekend riding, light commutes SRAM ESP 3.0 drive train, twist shifters, and rear derailleur; Shimano front derailleur Mozo C-81 CL front suspension fork SR/Suntour 24/34/42-teeth crank Promax suspension seat post; two bottle cage mounts