Specialized Hotrock 12 Coaster Girls

2012 YouthGeneral youth Manufacturer page

Suspension: Rigid
Wheels: 12″
Frame: Aluminum
Brakes: Coaster brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

4 of 18 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, Ground Control geometry, 12"" frame w/ low standover TT, integrated kickstand mount, horizontal dropouts Not identified

Suspension

1 part

Fork

A1 Premium Aluminum blade, 1"" threaded Hi-Ten steerer Not identified

Drivetrain

3 parts

Bottom bracket

Heat treated Hi-Ten cups, loose ball for 1pc. Not identified
Chain
- KMC
Z-410
Crankset

Heat treated Hi-Ten, 1pc. Not identified

Brakes

1 part

Brakes

Coaster Not identified

Wheels and tires

5 parts

Front hub

Steel, nutted axle, 16h Not identified
Rear hub

Steel, coaster brake, nutted axle, 16h Not identified
Rims

Alloy pinned, 16h Not identified
Spokes

14g UCP, w/ brass nipple Not identified
Tires
- Specialized

Cockpit and contact points

7 parts

Grips
- Specialized
Handlebar

Alloy 2pc. Not identified
Headset

1"" threaded, loose ball Not identified
Pedals

Composite platform, 1/2"" w/ ball bearing Not identified
Saddle
- Specialized
Seatpost

Steel, 22.2mm, integrated w/ saddle Not identified
Stem

Alloy quill Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

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

Size 16"

Table

Geometry diagram unavailable

The drawing needs wheelbase, reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	305	385	439
Seat tube lengthmm	179	210	241
Head tube lengthmm	70	80	80
Head tube angle	70°	70°	70°
Seat tube angle	76°	74°	76°
Chainstay lengthmm	271	310	389
Bottom bracket heightmm	165	198	227
Standover heightmm	338	412	482
Fork rakemm	24	24	23.5

Not published by the manufacturer: Reach, Stack, Wheelbase, Front center, Bottom bracket drop, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: girls
Frame material: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28

Wheels and brakes

Wheel configuration: Same size
Brake type: Coaster brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2″
Wheel material: Aluminum
Wheel size: 12″

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 2012 builds

Differences across 2012 builds
Specification	This bicycle Specialized Hotrock 12 Coaster Girls	Specialized Hotrock 12 Coaster Boys	Specialized Hotrock 16 Coaster Boys	Specialized Hotrock 16 Coaster Girls	Specialized Hotrock 20 Boys 6-speed	Specialized Hotrock 20 Girls 6-speed
Frame
Intended fit	girls	boys	boys	girls	boys	girls
Suspension
Suspension configuration	Rigid	Rigid	Rigid	Rigid	Hardtail	Hardtail
Front travel	Not informed	Not informed	Not informed	Not informed	40 mm	40 mm
Drivetrain
Smallest chainring	28	28	28	28	36	36
Largest chainring	28	28	28	28	36	36
Rear sprockets	Not informed	Not informed	Not informed	Not informed	6	6
Smallest sprocket	Not informed	Not informed	Not informed	Not informed	14	14
Largest sprocket	Not informed	Not informed	Not informed	Not informed	28	28
Lowest gear	Not informed	Not informed	Not informed	Not informed	25.7 in	25.7 in
Highest gear	Not informed	Not informed	Not informed	Not informed	51.4 in	51.4 in
Brakes
Brake type	Coaster brake	Coaster brake	Coaster brake	Coaster brake	Rim brake	Rim brake
Other specifications
Suspension	Rigid	Rigid	Rigid	Rigid	Hardtail	Hardtail
Tire width	2″	2″	2″	2″	2.125″	2.125″
Wheel size	12″	12″	16″	16″	20″	20″
Fork spring	Not informed	Not informed	Not informed	Not informed	Coil	Coil