Hotrock 20 Street Girls
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Hotrock 20 Street Girls

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Hotrock 20 Street Girls
Technical Specifications
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 carefree starts and stops plus room for full-sized water bottle
  • Alloy uni-crown fork is light and durable
  • Lightweight 32-spoke alloy rims are durable and provide a stable platform for learning
  • Easy-rolling Specialized Nimbus tires help kids keep up with Mom or Dad on the road or bike path, while resisting punctures
  • Kid's Body Geometry saddle is durable and comfortable and fits young riders perfectly
  • Riser bar and Ahead stem puts kids in a comfortable and confident position, with easy Allen-wrench adjustments
  • Forged alloy crank arms give big kids more power, and a chainguide keeps pant legs clean on the way to school
  • Shimano Revo 6-speed twist shifters allow easy, safe gear changes without switching hand positions on the bars

Technical Specifications

CHAIN KMC Z-50, 1/2"" x 3/32""
BOTTOM BRACKET Water sealed, loose ball, 68mm x 128mm
CRANKSET Forged alloy arms, steel single ring, w/ dual roller chainguide
SHIFT LEVERS Shimano RS-31, 6-speed, Revo Twist
CASSETTE Shimano 6-speed freewheel, 14-28t
CHAINRINGS 36T, w/ chainguard
REAR DERAILLEUR Shimano FT-30, 6-speed, direct mount
SADDLE Specialized Kids Body Geometry, 1pc., 7mm rail w/ clamp
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
FRONT HUB Forged alloy, loose ball, nutted axle, 32h
REAR HUB Forged alloy, freewheel type, 32h, nutted axle
INNER TUBES Schrader valve
SPOKES Stainless, 2.0mm (14g)
RIMS Alex C-1000, alloy single-wall, 32h
FRONT TIRE Specialized Nimbus, 60 TPI, wire bead, Flak Jacket protection, 20x1.5""
REAR TIRE Specialized Nimbus, 60 TPI, wire bead, Flak Jacket protection, 20x1.5""
FRONT BRAKE Die cast, alloy ""V"" brake, 1pc. pad
BRAKE LEVERS Tektro junior reduced-reach ""V"", alloy, linear pull compatible
REAR BRAKE Die cast, alloy ""V"" brake, 1pc. pad
PEDALS Composite platform w/ reflectors, loose ball, 9/16""
HEADSET 1-1/8"" threadless, loose ball
SEAT BINDER 34.9mm, alloy, extruded QR lever/collar
FORK Alloy straight blade, 1-1/8"" Hi-Ten steerer, w/ canti mounts
FRAME Specialized A1 Premium Aluminum, 20"" frame, rigid fork geo w/ low standover TT design, formed DT/TT, forged dropouts w/ replaceable hanger


Geometry Chart

Hotrock - Geometry

Top Tube Length (Actual) 447mm
Top Tube Length (Horizontal) 464mm
Seat Tube Length, Center to Top 279mm
Standover Height 517mm
Wheel Base 913mm
Bottom Bracket Drop 4mm
Chainstay Length 390mm
Bottom Bracket Height 236.5mm
Seat Tube Angle 72°
Rake 40mm
Head Tube Angle 69°
Head Tube Length 100mm