Main Specs Frame: Aluxx-Grade AluminumFork: AlloyGroupset Rear Derailleur: Shimano Altus Rd-M310Shifters: Shimano Altus Sl-M315Cranks: Alloy, Forged, Three-Piece, 32T, 115MmCassette: Shimano Hg200, 12 more→X32Front Brake: Alloy, Linear PullRear Brake: Alloy, Linear PullChain: Kmc Z8Bottom Bracket: Sealed Cartridge Wheels Rims: Giant Kids 20, AlloyTires: Innova Ib-3010, 20X1.5 Components Handlebar: Giant Youth, 480Mm WidthStem: Forged, Alloy, 25.4X60MmSaddle: Selle Royal Vivo Jr.Seatpost: Alloy, 27.2Mm