Velopedia Bicycle Archive

2015 Specialized Hotrock 24 XC Boys

Original specifications: Youth mix drivetrain · 24 wheels.

Share owner experience

Selling this bike? Create a shareable bike record

At a glance

Model year
2015
Category
Mountain
Original MSRP
$470.00
Sizes
11.5, 13.5"
Colors
Black/Red/White
In this record
24 specifications · archived image · original MSRP
Archive ID
1166497
Model history 2 other years
Campaign

Manufacturer catalog

Published sizes and colors

2 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

11.513.5"

Published colors

Black/Red/White

Frameset

Frame ConstructionSpecialized A1 Premium Aluminum, double-butted, formed downtube/toptube, externally relieved headtube, forged dropouts w/ replaceable hanger, disc mount
Frame MaterialAluminum
ForkSR Suntour XCT-JR-24-SHLO, 1pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, MCD, V-brake mount, 50mm travel
Fork MaterialSuspension

Drivetrain

Component GroupYouth mix
ShiftersSRAM 3.0 Comp, Grip Shift, 7-speed
Front DerailleurSR Suntour, 3-speed, high mount
Rear DerailleurSRAM X3, 7-speed, medium cage
CranksetSR Suntour XCT-JR, replaceable outer ring, 42/32/22, w/ chainguard
Bottom BracketSquare taper, cartridge bearings, 68mm
Rear CogsShimano MegaRange, 7-speed, 14-34
ChainKMC Z51, 8-speed
PedalsNylon, loose ball bearings, 9/16", w/ reflectors

Brakes

BrakesV-brake, die cast alloy, linear pull, 60mm 1 pc. pads

Cockpit & Contact Points

Headset1-1/8" threadless
HandlebarSpecialized Kids, flat bar, alloy, 8-degree upsweep, 4-degree backsweep, 25mm rise, 25.4mm
StemAhead, forged alloy, 4-bolt, 20-degree rise
SaddleSpecialized youth, steel rails
SeatpostAlloy, single bolt, 27.2mm

Wheels & Tires

HubsForged alloy, double-sealed, ground race, QR, 32h, Forged alloy, freewheel type, double-sealed, ground race, QR, 32h
RimsAlex, 24", alloy double-wall, pin joint, 32h
SpokesStainless, 14g, w/ brass nipple
Front TireSpecialized Fast Trak Sport, 60TPI, wire bead, 24x1.8"
Wheel Size24

Published drivetrain ratios

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build42/32/22T · 14–34T
Lowest0.65:1 Highest3.00:1 Total range464%

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

Find replacement parts

3 top part searches
ChainMatching fit standard
KMC Z51, 8-speed Exact archived model
Front tireMatching fit standard
Specialized Fast Trak Sport, 60TPI, wire bead, 24x1.8" Named tire and published size
Brake padsMatching fit standard
Linear-pull brake pads Published brake type — verify pad mounting style
More qualified parts (4)
Rear derailleurMatching configuration
SRAM X3, 7-speed, medium cage Interpreted as SRAM X3 · 7-speed · mechanical Component family — verify exact version
HandlebarQualified part search
Specialized Kids, flat bar, alloy, 8-degree upsweep, 4-degree backsweep, 25mm rise, 25.4mm Named archived component — verify dimensions
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback
RimsQualified part search
Alex, 24", alloy double-wall, pin joint, 32h Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

Campaign
Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this bike.

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.

Archived: 2015 Specialized Hotrock 24 XC Boys · Mountain Hardtail · Published sizes: 11.5, 13.5"

Archived: Frame: Specialized A1 Premium Aluminum, double-butted, formed downtube/toptube, externally relieved headtube, forged dropouts w/ replaceable hanger, disc mount · Fork: SR Suntour XCT-JR-24-SHLO, 1pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, MCD, V-brake mount, 50mm travel · Suspension

Archived: Fork: SR Suntour XCT-JR-24-SHLO, 1pc. alloy lower, coil/MCU spring, Hi-Ten 25.4mm stanchions, 1-1/8" steerer, direct press type dust seal, preload adjust, MCD, V-brake mount, 50mm travel

Archived: Group: Youth mix · Shifters: SRAM 3.0 Comp, Grip Shift, 7-speed · Front derailleur: SR Suntour, 3-speed, high mount · Rear derailleur: SRAM X3, 7-speed, medium cage · Crankset: SR Suntour XCT-JR, replaceable outer ring, 42/32/22, w/ chainguard · Bottom bracket: Square taper, cartridge bearings, 68mm · Rear cogs: Shimano MegaRange, 7-speed, 14-34 · Chain: KMC Z51, 8-speed

Archived: Brakes: V-brake, die cast alloy, linear pull, 60mm 1 pc. pads

Archived: Wheel size: 24 · Rims: Alex, 24", alloy double-wall, pin joint, 32h · Hubs: Forged alloy, double-sealed, ground race, QR, 32h, Forged alloy, freewheel type, double-sealed, ground race, QR, 32h · Front tire: Specialized Fast Trak Sport, 60TPI, wire bead, 24x1.8"

Controls and contact points

Archived: Headset: 1-1/8" threadless · Handlebar: Specialized Kids, flat bar, alloy, 8-degree upsweep, 4-degree backsweep, 25mm rise, 25.4mm · Stem: Ahead, forged alloy, 4-bolt, 20-degree rise · Seatpost: Alloy, single bolt, 27.2mm · Saddle: Specialized youth, steel rails · Pedals: Nylon, loose ball bearings, 9/16", w/ reflectors

Before and during the test ride

Follow the full used-bike inspection order →

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.

This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Current market

Snapshot not yet available
Current listingsCheck the latest asking pricesScroll or tap to load current market information.

Scroll or tap to check for a market update.

Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

Scroll to Top