2012 Hotrock 20 6-Speed Boys
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A lightweight, low-standover height frame with properly proportioned and easy-to-use…
Product Details
A lightweight, low-standover height frame with properly proportioned and easy-to-use controls makes the Hotrock perfect for a kid's first multi-speed bike. A 50mm of travel fork takes some bite out of the bumps.
20" A1 Premium Aluminum frame with low standover height for care-free starts and stops with room for full-sized water bottle
40mm-travel SR Suntour suspension fork with lightweight alloy lowers and pre-load adjust takes the edge off bumps for more control
Lightweight 32-spoke alloy rims are durable and provide a stable platform for learning
Specialized Roller Sport tires provide a knobby grip for dirt, but roll easily on pavement
Forged alloy crank arms give big kids more power, and a chainguide keeps pant legs clean on the way to school
Lightweight alloy A-Head stem for perfect positioning and easy, Allen-wrench adjustments
Alloy riserbar puts kids in a comfortable and confident position
Kid's Body Geometry saddle is durable and comfortable and fits young riders perfectly
Shimano Revo 6-speed twist shifters allow easy, safe gear changes without switching hand positions on the bars
Technical Specifications
FRAMESET
FRAME
Specialized A1 Premium Aluminum, 20"" frame, front suspension geo w/ low standover TT design, formed DT/TT, forged dropouts w/ replaceable hanger
FORK
SR Suntour (SF11-XCT-JR-20), 1pc. alloy lower, 25.4mm Hi-Ten stanchions, 1-1/8"" Hi-Ten steerer, coil/mcu w/ preload adj., 40mm travel
HEADSET
1-1/8"" threadless, loose ball
SEAT BINDER
34.9mm, alloy, extruded QR lever/collar
WHEELS
RIMS
Alex C-1000, alloy single-wall, 32h
FRONT HUB
Forged alloy, loose ball, nutted axle, 32h
REAR HUB
Forged alloy, freewheel type, 32h, nutted axle
SPOKES
Stainless, 2.0mm (14g)
FRONT TIRE
Specialized Roller Sport, 30 TPI, wire bead, 20x2.125""
REAR TIRE
Specialized Roller Sport, 30 TPI, wire bead, 20x2.125""
INNER TUBES
Schrader valve
DRIVETRAIN
REAR DERAILLEUR
Shimano FT-30, 6-speed, direct mount
SHIFT LEVERS
Shimano RS-31, 6-speed, Revo Twist
CASSETTE
Shimano 6-speed freewheel, 14-28t
CHAIN
KMC Z-50, 1/2"" x 3/32""
CRANKSET
Forged alloy arms, steel single ring, w/ dual roller chainguide
CHAINRINGS
36T, w/ chainguard
BOTTOM BRACKET
Water sealed, loose ball, 68mm x 128mm
COCKPIT
SEATPOST
Alloy, 27.2mm, micro adjust
STEM
Alloy Ahead, 4 bolt, 20º rise, 25.4mm clamp
HANDLEBARS
Hi-Ten riser bar, 40mm rise, 10º backsweep, 6º upsweep, 25.4mm
GRIPS
Specialized Revo type
SADDLE
Specialized Kids Body Geometry, 1pc., 7mm rail w/ clamp
BRAKES
FRONT BRAKE
Die cast, alloy ""V"" brake, 1pc. pad
REAR BRAKE
Die cast, alloy ""V"" brake, 1pc. pad
BRAKE LEVERS
Tektro junior reduced-reach ""V"", alloy, linear pull compatible
ACCESSORIES
PEDALS
Composite platform w/ reflectors, loose ball, 9/16""
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| 6-SPD | |
|---|---|
| Top Tube Length (Horizontal) | 464mm |
| Rake | 40mm |
| Top Tube Length (Actual) | 447mm |
| Seat Tube Length, Center to Top | 279mm |
| Bottom Bracket Drop | 4mm |
| Bottom Bracket Height | 236.5mm |
| Wheel Base | 913mm |
| Standover Height | 517mm |
| Head Tube Length | 100mm |
| Head Tube Angle | 69° |
| Chainstay Length | 390mm |
| Seat Tube Angle | 72° |
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