"Wheel Size 24"" Frame Heat treated Hi-Ten steel, Mountain geometry with oversized down tube and kickstand bracket Fork 40mm Travel Rear Shock N/A Headset Steel quill Cranks Steel crank arm, 42T/34T/24T Chainrings Bottom Bracket N/A Front Derailleur Shimano Tourney Rear Derailleur Shimano Tourney Cog Set Shimano 7 speed (28T/24T/22T/20T/18T/16T/14T) Shifter Shimano Revo twist shift Chain KMC Hub (F) Steel Hub (R) Steel Spokes 14g Rims 32H Aluminum Tires 24 x 2.1 Valve Type Schrader Brakes Alloy linear pull Brake Levers Aluminum Pedals Resin Handlebar Steel Grips Mountain Stem Steel >Seat Sport Saddle >Seat Post Steel Average Bike Weight 33.44 lbs. He can explore mountain trails and rocky paths on the Nishiki® Boys' Pueblo Mountain Bike. Built with a heat-treated hi-ten steel frame and 40mm travel fork, this durable bike holds up through his every adventure. Whether he’s slowing down with the alloy linear pull brakes or revving up with the 21 speeds, your little rider is set for fun. Kickstand not included NOTICE: Used Bikes and/or bikes purchased online that have been assembled are non-returnable. We strongly recommend that a professional bicycle mechanic properly assembles, repairs, and maintains the bicycle. DICK'S Sporting Goods will provide free in-store assembly service by a certified technician for any bicycle purchased on our website or in our stores (proof of purchase required). If you choose to assemble the bicycle yourself, DICK'S Sporting Goods is not responsible for injuries or damages resulting from improper assembly."