Compare bikes: Compare Orbea MX KIDS MX 20 XC (2017) vs. Specialized Hotrock Boy's 21-Speed Hotrock 24 (2017) - Findabike

KMC HV500, 1/2x3/32"

Forged alloy arms w/chainguard

Front: Shimano Tourney, top swing, 31.8mm band clamp - Rear: Shimano Tourney, 7-speed

Shimano Tourney, Revo-style, 7-speed

Shimano, 7-speed, 14-28t

SR Suntour, coil spring w/preload adjust, 50mm of travel, 1-1/8" steel steerer, 9mm axle

Specialized A1 Premium Aluminum, formed top tube/down tube, forged dropouts, replaceable alloy derailleur hanger

Forged alloy, 20-degree rise, 4-bolt, 25.4mm clamp diameter

Front: Alloy, 3/8" axle, loose ball bearings, dual lock nuts, 17mm contact side, nutted, 32h - Rear: Alloy, loose ball, dual lock nuts, 17mm contact side, steel nutted axle, 32h

24", alloy single wall, pin joint, 32h

Stainless, 14g

Front: Roller, 24x2.125", 30TPI, wire bead - Rear: Roller, 24x2.125", 30TPI, wire bead

Front: V-brake, alloy, linear pull - Rear: V-brake, alloy, linear pull

Specialized, alloy, 6-degree backsweep, 600mm width, 25.4mm

Specialized, Kraton rubber, Revo type

Specialized Kids', 7mm rails w/bumper

Alloy, single bolt, 27.2mm

Forged alloy, 20-degree rise, 4-bolt, 25.4mm clamp diameter

BMX-style nylon platform w/reflectors