Iron Horse Sinister 6.3 Mountain Bike: * Mountain bike * Aluminum 29" full suspension frame and SR Suntour 2025 fork allow you to roll over anything on the trail * Ahead stem with MTB riser bars creates a more controlled riding position * Shimano 24 speed trigger shifters with Shimano rear derailleur for quick, efficient gear changes * Front and rear HL disc brakes provide high-performance stopping power * Alloy crank set 42/32/22 with platform pedals * Lock on handlebar grips * Assembly required * Dimensions: 76"L x 31"W x 39.5"H See our entire assortment of bikes and ride on toys at Walmart.com.