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2015 Specialized Hotrock 24 XC Disc Boys

Original specifications: Shimano Acera · 8-speed rear derailleur · 24 wheels.

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At a glance

Model year
2015
Category
Mountain
Original MSRP
$660.00
Sizes
11.5, 13.5"
Colors
Black/Green/White
In this record
22 specifications · original MSRP
Archive ID
1083090
Original buildAluminum · Youth mix · 24

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/Green/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 XCR-LO, 1 pc. mag lower, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, MCD, 63mm travel
Fork MaterialSuspension

Drivetrain

Component GroupYouth mix
ShiftersShimano Rapidfire Plus, 8-speed, SL type w/ optical display
Front DerailleurSR Suntour, 3-speed, high mount
Rear DerailleurShimano Acera, 8-speed, SGS cage
CranksetSR Suntour XCT-JR, replaceable outer ring, 42/32/22, w/ chainguard
Bottom BracketSquare taper, cartridge bearings, 68mm
Rear CogsSunrace, 8-speed, 11-34
ChainKMC X8, 8-speed, w/ reusable MissingLink
PedalsNylon, loose ball bearings, 9/16", w/ reflectors

Brakes

BrakesTektro Auriga, hydraulic disc, resin/metallic pads, tooled reach adjust

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

Wheels & Tires

HubsSpecialized Hi Lo disc, alloy, RCC bearing system, 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

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 · 11–34T
Lowest0.65:1 Highest3.82:1 Total range590%
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Parts & serviceability

Find replacement parts

Original specifications
Cassette / rear cogs · Original
Sunrace, 8-speed, 11-34
Front tire · Original
Specialized Fast Trak Sport, 60TPI, wire bead, 24x1.8"
Rear derailleur · Original
Shimano Acera, 8-speed, SGS cage Search: Shimano Acera, 8-speed, SGS cage rear derailleur
More parts (3)
Handlebar · Original
Specialized Kids, flat bar, alloy, 8-degree upsweep, 4-degree backsweep, 25mm rise, 25.4mm
Rims · Original
Alex, 24", alloy double-wall, pin joint, 32h
Hubs · Original
Specialized Hi Lo disc, alloy, RCC bearing system, QR, 32h

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases.

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Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
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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 Disc 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 XCR-LO, 1 pc. mag lower, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, MCD, 63mm travel · Suspension

Archived: Fork: SR Suntour XCR-LO, 1 pc. mag lower, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, MCD, 63mm travel

Archived: Group: Youth mix · Shifters: Shimano Rapidfire Plus, 8-speed, SL type w/ optical display · Front derailleur: SR Suntour, 3-speed, high mount · Rear derailleur: Shimano Acera, 8-speed, SGS cage · Crankset: SR Suntour XCT-JR, replaceable outer ring, 42/32/22, w/ chainguard · Bottom bracket: Square taper, cartridge bearings, 68mm · Rear cogs: Sunrace, 8-speed, 11-34 · Chain: KMC X8, 8-speed, w/ reusable MissingLink

Archived: Brakes: Tektro Auriga, hydraulic disc, resin/metallic pads, tooled reach adjust

Archived: Wheel size: 24 · Rims: Alex, 24", alloy double-wall, pin joint, 32h · Hubs: Specialized Hi Lo disc, alloy, RCC bearing system, 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 · Pedals: Nylon, loose ball bearings, 9/16", w/ reflectors

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

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