Specialized Hotrock 24 XC Pro

Name: Specialized Hotrock 24 XC Pro
Brand: Specialized

2017 YouthGeneral youth Manufacturer page

Fork travel: 63 mm
Wheels: 24″
Drivetrain: 2 × 10 22–36t / 11–36t
Gear range: 536%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

16 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Specialized A1 Premium Aluminum, double-butted, formed down tube/top tube, externally relieved head tube, forged dropouts w/replaceable hanger, disc mount Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket
- SRAM GXP
Cassette
- SunRace 11–36t
Chain
- KMC
Crankset
- SRAM 36/22t
S-1255
Front derailleur
- SRAM X7 High Clamp 10 speeds
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano Deore

Brakes

1 part

Brakes
- Shimano Deore

Wheels and tires

5 parts

Front hub
- Specialized
Rear hub
- Specialized
Rims

24"" disc, alloy double-wall, sleeve joint, 23mm inner width Not identified
Spokes

Stainless, 14g Not identified
Tires

Front: Fast Trak LK Sport, 24x1.8"", 60TPI, wire bead, Rear: Fast Trak LK Sport, 24x1.8"", 60TPI, wire bead Not identified

Cockpit and contact points

6 parts

Sizes and geometry

1 size Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 13"

Table

Reach 335mm

Stack 504mm

Wheelbase 960mm

Head angle 70.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 24″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	335
Stackmm	504
Top tube lengthmm	490
Seat tube lengthmm	305
Head tube lengthmm	90
Head tube angle	70°
Seat tube angle	73°
Chainstay lengthmm	420
Wheelbasemm	960
Front centermm	544
Bottom bracket dropmm	45
Bottom bracket heightmm	263.5
Standover heightmm	610
Fork rakemm	37
Trailmm	73
Stack/reach ratio	1.50
Suspension and parts
Crank lengthmm	160
Handlebar widthmm	640
Stem lengthmm	75
Seatpost lengthmm	300

Not published by the manufacturer: Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 14.7 in
Highest gear: 78.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 1.8″
Wheel material: Aluminum
Wheel size: 24″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

14.7 gear inches

This value is below the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Highest gear

78.6 gear inches

This value is above the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 5.6 km/h
Highest gear: 30.1 km/h

Total gear range 535%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 14.7–78.6 gear inches
Class reference (p10–p90): 17.9–91.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / General youth Model year: 2017
Lowest gear: 120 bicycles with this information, 77.4% of the class
Highest gear: 120 bicycles with this information, 77.4% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2017 builds

Differences across 2017 builds
Specification	This bicycle Specialized Hotrock 24 XC Pro	Specialized Hotrock 24 XC Disc
Drivetrain
Front chainrings	2	3
Largest chainring	36	42
Rear sprockets	10	8
Largest sprocket	36	34
Lowest gear	14.7 in	15.5 in
Highest gear	78.6 in	91.6 in
Other specifications
Fork spring	Air	Coil