Boy's 6-Speed Hotrock 20
Part No.  

Boy's 6-Speed Hotrock 20

Part No.  118247
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Your little tike might love to ride, but given that they're still growing like a weed, the big kid trail shredder bike can probably wait a few years. That's why we made our Boy's 6-Speed Hotrock 20 with plenty of gear range to tackle the neighborhood hills, and enough to ride beginner's trails confidently. Of course, it also features a lightweight, yet durable, 20-inch A1 Premium Aluminum 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 40mm 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 Aluminum frame is built to stand up to years of tough riding.
  • SR Suntour suspension fork offers 40mm 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, 40mm of travel, 1-1/8"" steel steerer, 9mm axle
FRAME Specialized A1 Premium Aluminum, 20"", 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 Schrader valve
SPOKES Stainless, 14g
FRONT TIRE Roller, 20x2.125"", 30TPI, wire bead
RIMS 20"", alloy single wall, pin joint, 32h
REAR TIRE Roller, 20x2.125"", 30TPI, wire bead
DRIVETRAIN
BOTTOM BRACKET 68mmx118mm, semi-cartridge, E-type
CHAIN KMC HV500, 1/2x3/32""
CRANKSET Forged alloy arms w/single outer chainguard
CASSETTE Shimano Tourney freewheel, 6-speed, 14-28t
SHIFT LEVERS Shimano Revo-Shift
CHAINRINGS 36T w/chainguard
REAR DERAILLEUR Shimano Tourney, 6-speed
COCKPIT
SADDLE Specialized Kids', 7mm rails w/bumper
SEATPOST Alloy, single bolt, 27.2mm
GRIPS Specialized, Kraton, Revo type
HANDLEBARS Specialized Kids', steel, 10-degree backsweep, 4-degree upsweep, 25mm rise, 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

- Geometry

 
Crank Length 127mm
Stem Length 70mm
Handlebar Width 600mm
Seat Post Length 300mm
Bottom Bracket Drop 20mm
Chainstay Length 390mm
Seat Tube Angle 72°
Head Tube Angle 69°
Rake 40mm
Head Tube Length 110mm
Top Tube Length (Actual) 449mm
Top Tube Length (Horizontal) 465mm
Seat Tube Length, Center to Top 279mm
Standover Height 555mm
Wheel Base 916mm
Bottom Bracket Height 237mm

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