Hotrock 24 21-Speed Boys
Part No.  

Hotrock 24 21-Speed Boys

Part No.  106355
With its durable aluminum frame and coil suspension fork, the Hotrock 24 21- speed is perfectly suited to rip it up on the streets and trails for years to come.
  • 24" alloy wheels are designed to withstand years of use.
  • The tough, light, and durable Specialized A1 Premium Aluminum frame is built to last.
  • The alloy V-Brakes provide reliable and excellent stopping power on the trail or on the road.
  • The SR Suntour suspension fork helps maintain traction on both roads and trails, helping to inspire confidence for young riders.

Technical Specifications

CHAIN KMC HV500, 1/2""x3/32""
BOTTOM BRACKET 68x119mm, semi-cartridge, w/ bolts
CRANKSET Forged alloy arms, w/ chainguard
SHIFT LEVERS Shimano Revo-Shift, 7-speed
CASSETTE Shimano, 7-speed freewheel, 14-28t
REAR DERAILLEUR Shimano TX-35, MegaRange, 7-speed
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 Standard, Schrader valve
SPOKES Stainless, 14g
RIMS 24"", alloy single wall, pin joint, 32h
FRONT TIRE Specialized Roller, 30TPI, wire bead, 24x2.125""
REAR TIRE Specialized Roller, 30TPI, wire bead, 24x2.125""
SADDLE Specialized Kids, 7mm rails, w/ bumper
SEATPOST Alloy, single bolt, 27.2mm
STEM Ahead, forged alloy, 4-bolt, 20-degree rise
HANDLEBARS Specialized Kids, flat bar, steel, 10-degree backsweep, 4-degree upsweep, 25.4mm
GRIPS Specialized, Kraton, Revo type
FRONT BRAKE V-brake, alloy, linear pull
BRAKE LEVERS Tektro, alloy, linear pull compatible
REAR BRAKE V-brake, alloy, linear pull
PEDALS Nylon, BMX style, loose ball bearings, 9/16"", w/ reflectors
HEADSET Ahead, 1/8"" sealed cartridge bearings
SEAT BINDER Alloy, 31.8mm
FORK SR Suntour XCT-JR, coil/MCU spring, 50mm travel, preload adjust, 1-1/8"" steerer, alloy lowers, Hi-Ten 25.4mm stanchions, direct press type dust seal, disc and V-brake mount
FRAME Specialized A1 Premium Aluminum, formed top tube/down tube, forged dropouts, replaceable alloy derailleur hanger


Geometry Chart

- Geometry

Stem Length 0mm 0mm
Crank Length 0mm 0mm
Seatpost Length 0mm 0mm
Handlebar Width 0mm 0mm
Reach 354mm 354mm
Stack 495mm 495mm
Wheelbase 982mm 982mm
Bike Stand-Over Height 615mm 559mm
Head-Tube Length 130mm 130mm
Front-Center 574mm 574mm
Fork Rake/Offset 40mm 40mm
Head-Tube Angle 69° 69°
Trail 56mm 56mm
B-B Height 221.5mm 221.5mm
Chain-Stay Length 410mm 410mm
Fork Length (full) 376mm 376mm
Seat-Tube Angle 73° 73°
B-B Drop 35mm 35mm
Seat-Tube Length 312mm 312mm
Top-Tube Length (horizontal) 505mm 505mm