2017 Specialized

Hotrock 24 XC Disc

A 24″ aluminum frame general youth bike with modest components and hydraulic disc brakes.
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FrameAluminum
SuspensionHardtail, 63mm
ForkSteel
Wheels24″ Aluminum
Drivetrain3 × 8
GroupsetAcera, Suntour
BrakesHydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

27 mph

Hotrock 24 XC Disc

18 mph

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Highest gear

(descending)

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Specialized A1 Premium Aluminum, double-butted, formed down tube/top tube, externally relieved head tube, forged dropouts w/replaceable hanger, disc mount

Fork

SR Suntour, coil spring w/preload adjust, 63mm of travel, 1-1/8"" steel steerer, 9mm axle

Travel63mm

Spring TypeCoil

Bottom Bracket

Square taper, cartridge bearings, 68mm

Stem

Forged alloy, 20 degree rise, 4 bolt, 25.4mm clamp diameter

Handlebar

Specialized, 8-degree backsweep, 4-degree upsweep, 25mm rise, 620mm width, 25.4mm

Saddle

Specialized Youth, steel rails

Seatpost

Alloy, single bolt, 27.2mm

TypeRigid

Pedals

Platform

Grips

Specialized, Kraton w/gel

Groupset
Rear Derailleur

Shimano Acera, Shadow design

Front Derailleur

SR Suntour, 31.8mm clamp, high-mount

Crank

SR Suntour XCT-JR, replaceable outer ring, 42/32/22T w/chainguard, 42/32/22T

Shifters

Shimano RapidFire Plus, 8-speed

Cassette

Sunrace, 8-speed, 11-34t

Chain

KMC X8, 8-speed w/reusable MissingLink

Brakes

Front: Tektro Auriga, hydraulic disc, resin pads, 160mm rotor, Rear: Tektro Auriga, hydraulic disc, resin pads, 160mm rotor

TypeHydraulic Disc

Wheels
Rims

24"", aluminum double-wall, 32h

Spokes

Stainless, 14g

Front Hub

Specialized disc, loose ball bearings, 9mm QR, 32h

Rear Hub

Specialized disc, 6-bolt disc mount, loose ball bearings, for Shimano 8-/9-speed cassettes, QR, 32h

Tires

Front: Specialized Fast Trak LK Sport, 60TPI, wire bead, 24x1.8"", Rear: Specialized Fast Trak LK Sport, 60TPI, wire bead, 24x1.8""

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Last updated November 6
Not listed for 1,622 days