Hotrock 24 St. Girls
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Hotrock 24 St. Girls

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Hotrock 24 St. Girls
Technical Specifications
These trail-inspired kid's bikes are developed with the same commitment to quality, performance and safety as our adult bikes—no second-rate parts, no cutting corners. You'll love the Hotrock's durability and easy learning curve. They'll love the hot designs, big wheels and cool graphics.
  • Swagged alloy rigid fork steers precisely to build confidence on the road
  • Grip twist shifters allow for easy, safe gear changes without switching hand position on the bars
  • Specialized Nimbus tires resist flats and punctures while rolling easily on sidewalks, streets and bike paths
  • Kid's alloy street frame with low standover height for care-free starts and stops with room for full-sized waterbottle
  • Versatile 21-speed crankset with forged alloy arms for power and a chain guide to keep pant legs clean on the way to school

Technical Specifications

CHAIN KMC Z7 w/ reuseable Missing Link
BOTTOM BRACKET VP, water sealed, 68mm x 128mm
CRANKSET Forged alloy arms, triple chainring with guard, 152mm
FRONT DERAILLEUR Shimano FD-CO50, 3-speed
SHIFT LEVERS Shimano RS-31 Revo Twist
CASSETTE Shimano MF-TZ21, 7-speed, 14-28t
CHAINRINGS 42 x 34 x 24, w/ chainguard
REAR DERAILLEUR Shimano TX-31, 7-speed direct mount
SADDLE Specialized 1pc., 7mm rail w/o clamp
SEATPOST Alloy, 27.2mm, microadjust
STEM Alloy A-Head, melt forged, 60mm, 15 degree rise
HANDLEBARS Hi-Ten, 600mm wide, 40mm rise, 10 degree back sweep, 6 degree up sweep
GRIPS Kraton, Revo type
FRONT HUB Forged alloy, 32h with 3/8"" axle, nutted
REAR HUB Forged alloy freewheel type, 32h with 3/8"" axle, nutted
INNER TUBES Schraeder valve
SPOKES 2mm 14g stainless
RIMS Alex C-1000, alloy single wall, 32h
FRONT TIRE Specialized Nimbus, 24 x 1.5"", 60TPI, wire bead
REAR TIRE Specialized Nimbus, 24 x 1.5"", 60TPI, wire bead
FRONT BRAKE Alloy linear pull
BRAKE LEVERS Junior reduced reach ""V"", alloy, linear pull compatible
REAR BRAKE Alloy linear pull
PEDALS Composite platform, 9/16""
HEADSET 1-1/8"" threadless
SEAT BINDER Alloy collar w/ QR
FORK Swagged alloy straight blade, 1 1/8"" steerer w/ canti mounts
FRAME Specialized A1 Premium Aluminum, 24"" frame, rigid fork geo w/ low standover TT, formed DT, forged dropouts w/ replaceable hanger


Geometry Chart

- Geometry

Seatpost Length 0mm
Chainstay Length 420mm
Front Center 576mm
Seat Tube Angle 73°
Rake 45mm
Head Tube Angle 69°
Head Tube Length 120mm
Top Tube Length (Actual) 491mm
Top Tube Length (Horizontal) 505mm
Seat Tube Length, Center to Top 312mm
Standover Height 560mm
Wheel Base 992mm
Bottom Bracket Height 247mm