Velopedia Bicycle Archive
2015 Specialized Hotrock 20 6-Speed Girls
Original specifications: Youth mix drivetrain · 20 wheels.
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At a glance
- Model year
- 2015
- Category
- Kids
- Original MSRP
- $360.00
- Sizes
- One Size
- Colors
- ink/Pink, White/Purple
- In this record
- 24 specifications · 2 archived images · original MSRP
- Archive ID
- 1482864
Model history 3 other years
Frameset
| Frame Construction | Specialized A1 Premium Aluminum, 20", formed toptube/downtube, forged dropouts, replaceable alloy derailleur hanger |
|---|---|
| Frame Material | Aluminum |
| Fork | SR Suntour XCT-JR, 1 pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, disc and V-brake mount, 40mm travel |
| Fork Material | Suspension |
Drivetrain
| Component Group | Youth mix |
|---|---|
| Shifters | Shimano Revo-Shift, 6-speed |
| Front Derailleur | None |
| Rear Derailleur | Shimano, 6-speed, short cage, direct mount |
| Crankset | Forged alloy arms, w/ single outer chainguard, 36t steel |
| Bottom Bracket | 68mmx119mm, semi-cartridge E-type, w/ bolts |
| Rear Cogs | Shimano, 6-speed freewheel, 14-28 |
| Chain | KMC HV500, 1/2"x3/32" |
| Pedals | Composite platform, w/ reflectors, 9/16" |
Brakes
| Brakes | Die-cast alloy V-brake, 60mm pads |
|---|
Cockpit & Contact Points
| Headset | Ahead, 1/8" sealed cartridge bearings |
|---|---|
| Handlebar | Kid's riser, steel, 10-degree backsweep, 4-degree upsweep, 25mm rise, 25.4mm |
| Stem | Ahead, forged alloy, 4-bolt, 20-degree rise |
| Saddle | Specialized Kids, 7mm rails, w/ bumper |
| Seatpost | Alloy, single bolt, 27.2mm |
Wheels & Tires
| Hubs | Alloy, 3/8" axle, loose ball, dual lock nuts w/ 17mm contact side, nutted, 32h, Alloy, loose ball, dual lock nuts w/ 17mm contact side, steel nutted, 32h |
|---|---|
| Rims | 20", alloy single wall, pin joint, 32h |
| Spokes | Stainless, 14g, w/ brass nipple |
| Front Tire | Specialized Roller, 30TPI, wire bead, 20x2.125" |
| Wheel Size | 20 |
Published drivetrain ratios
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.
Parts & serviceability
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More qualified parts (2)
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Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2015 Specialized Hotrock 20 6-Speed Girls · Youth · Published sizes: One Size
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized A1 Premium Aluminum, 20", formed toptube/downtube, forged dropouts, replaceable alloy derailleur hanger · Fork: SR Suntour XCT-JR, 1 pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, disc and V-brake mount, 40mm travel · Suspension
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCT-JR, 1 pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, disc and V-brake mount, 40mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Youth mix · Shifters: Shimano Revo-Shift, 6-speed · Rear derailleur: Shimano, 6-speed, short cage, direct mount · Crankset: Forged alloy arms, w/ single outer chainguard, 36t steel · Bottom bracket: 68mmx119mm, semi-cartridge E-type, w/ bolts · Rear cogs: Shimano, 6-speed freewheel, 14-28 · Chain: KMC HV500, 1/2"x3/32"
Brakes
Inspect the brakes →Archived: Brakes: Die-cast alloy V-brake, 60mm pads
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20 · Rims: 20", alloy single wall, pin joint, 32h · Hubs: Alloy, 3/8" axle, loose ball, dual lock nuts w/ 17mm contact side, nutted, 32h, Alloy, loose ball, dual lock nuts w/ 17mm contact side, steel nutted, 32h · Front tire: Specialized Roller, 30TPI, wire bead, 20x2.125"
Controls and contact points
Archived: Headset: Ahead, 1/8" sealed cartridge bearings · Handlebar: Kid's riser, steel, 10-degree backsweep, 4-degree upsweep, 25mm rise, 25.4mm · Stem: Ahead, forged alloy, 4-bolt, 20-degree rise · Seatpost: Alloy, single bolt, 27.2mm · Saddle: Specialized Kids, 7mm rails, w/ bumper · Pedals: Composite platform, w/ reflectors, 9/16"
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




