Boy's 21-Speed Hotrock 24
Part No.:  

Boy's 21-Speed Hotrock 24

Part No.:  118294
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Boy's 21-Speed Hotrock 24
Overview
Technical Specifications
Geometry
Reviews
Little legs love to climb as big ones, which is why we made the Boy's 21-Speed Hotrock 24. It has wide gear range that puts any hill within reach, which means that they'll spend more time smiling and less time sulking on the side of the trail. Of course, it also features a lightweight, yet durable, A1 Premium aluminium frame that's designed to take a hit while they find their legs on the pump track, while chatter and bumps are handled by the coil-sprung SR Suntour fork's 50mm of travel. Then there are a whole host of other components that are plenty tough enough to stand up to your little guy, so you can rest assured that you'll be spending more time riding with your kid and less time waiting in line at the repair counter. 
  • Tough, light, and durable, the A1 Premium aluminium frame is built to stand up to years of tough riding.
  • SR Suntour suspension fork offers 50mm of coil-sprung travel that smooths out bumpy, rough terrain

Technical Specifications

FRAMESET
SEAT BINDER Alloy, 31.8mm
FORK SR Suntour, coil spring w/preload adjust, 50mm of travel, 1-1/8" steel steerer, 9mm axle
FRAME Specialized A1 Premium Aluminum, formed top tube/down tube, forged dropouts, replaceable alloy derailleur hanger
WHEELS
FRONT HUB Alloy, 3/8" axle, loose ball bearings, dual lock nuts, 17mm contact side, nutted, 32h
REAR HUB Alloy, loose ball, dual lock nuts, 17mm contact side, steel nutted axle, 32h
INNER TUBES 24x1.9/2.125", Schrader valve
SPOKES Stainless, 14g
FRONT TYRE Roller, 24x2.125", 30TPI, wire bead
RIMS 24", alloy single wall, pin joint, 32h
REAR TYRE Roller, 24x2.125", 30TPI, wire bead
DRIVETRAIN
BOTTOM BRACKET 68mmx118mm, semi-cartridge
CHAIN KMC HV500, 1/2x3/32"
CRANKSET Forged alloy arms w/chainguard
CASSETTE Shimano, 7-speed, 14-28t
SHIFT LEVERS Shimano Tourney, Revo-style, 7-speed
FRONT DERAILLEUR Shimano Tourney, top swing, 31.8mm band clamp
CHAINRINGS 42/34/24T w/chainguard
REAR DERAILLEUR Shimano Tourney, 7-speed
COCKPIT
SADDLE Specialized Kids', 7mm rails w/bumper
SEATPOST Alloy, single bolt, 27.2mm
GRIPS Specialized, Kraton rubber, Revo type
HANDLEBARS Specialized, alloy, 6-degree backsweep, 600mm width, 25.4mm
STEM Forged alloy, 20-degree rise, 4-bolt, 25.4mm clamp diameter
BRAKES
FRONT BRAKE V-brake, alloy, linear pull
REAR BRAKE V-brake, alloy, linear pull
ACCESSORIES
PEDALS BMX-style nylon platform w/reflectors

Geometry

Geometry Chart

Hotrock - Geometry

11
  11
Crank Length 152mm
Stem Length 70mm
Handlebar Width 600mm
Seat Post Length 300mm
Reach 354mm
Stack 495mm
Wheelbase 982mm
Bike Stand-Over Height 615mm
Head-Tube Length 130mm
Front-Center 574mm
Fork Rake/Offset 40mm
Head-Tube Angle 69°
Trail 56mm
B-B Height 221.5mm
Chain-Stay Length 410mm
Fork Length (full) 376mm
Seat-Tube Angle 73°
B-B Drop 35mm
Seat-Tube Length 312mm
Top-Tube Length (horizontal) 505mm

Reviews