Mantis Premier 726M Comfort Bicycle Frame/Fork: Comfort style steel frame and ridged steel fork in a 18 inch men's or 17 inch women's sizes Wheels/Tires: Aluminum wheels with a 26 inch smooth tread tires Drivetrain: Shimano freewheel with Shimano 21 speed RS-35 Twist Shifter, Shimano front derailleur and Shimano RD-TX35 Rear Derailleur Brakes/Cockpit: Promax aluminum V-Brakes and levers with a large comfort spring saddle and aluminum suspension seat post Includes: Aluminum 3 piece cranks, Quick release seatpost and front wheel and multi-position adjustable aluminum stem