Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 12" -
Suspension Rigid -
Brakes Coaster
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Specialized A1 Premium Aluminum, Ground Control geometry, 12"" frame w/ low standover TT, integrated kickstand mount, horizontal dropouts
Suspension Fork
A1 Premium Aluminum blade, 1"" threaded Hi-Ten steerer
Drivetrain
Crank
Heat treated Hi-Ten, 1pc.
Bottom Bracket
Heat treated Hi-Ten cups, loose ball for 1pc.
Chain
KMC Z-410, 1/2"" x 1/8""
Pedals
Composite platform, 1/2"" w/ ball bearing
Wheels
Front Hub
Steel, nutted axle, 16h
Rear Hub
Steel, coaster brake, nutted axle, 16h
Rims
Alloy pinned, 16h
Spokes
14g UCP, w/ brass nipple
Tires
Specialized Rhythm Lite Sport, 30 TPI, wire bead, 12x2.0""
Brakes
Brakes
Coaster
Cockpit
Stem
Alloy quill
Handlebar
Alloy 2pc.
Grips
Specialized Kraton Kid's w/ flange
Headset
1"" threaded, loose ball
Seat
Saddle
Specialized Kids, w/ integrated teacher's handle and 22.2mm seat post
Seatpost
Steel, 22.2mm, integrated w/ saddle
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 12" | 16" | 20" |
|---|---|---|---|
| Bottom Bracket Height | 165 mm | 198 mm | 227 mm |
| Rake | 24 mm | 24 mm | 23.5 mm |
| Top Tube Length | 305 mm | 385 mm | 439 mm |
| Seat Tube Angle | 76 ° | 74 ° | 76 ° |
| Seat Tube Length | 179 mm | 210 mm | 241 mm |
| Head Tube Angle | 70 ° | 70 ° | 70 ° |
| Head Tube Length | 70 mm | 80 mm | 80 mm |
| Chainstay Length | 271 mm | 310 mm | 389 mm |
| Standover Height | 338 mm | 412 mm | 482 mm |
| Wheels | 12" | 12" | 12" |
Model Overview
Hotrock 12 Coaster Girls completes the Specialized Hotrock model. 35 bikes variations carry this model name so far. You can easily view all of the Specialized Hotrock bikes models from 2012, here.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Youth bikes average price
If you want an acceptable Youth bike you should know that the average price is 278$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Youth bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Overview of components
Fork material
When it comes to the fork, this bike has an aluminum one, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels
When it comes to wheels, the Hotrock 12 Coaster Girls bike is equipped with the 12″ aluminum model. The 12″ wheels are a good fit for folding bikes, BMX, or children bikes. In conclusion, they are great for flat ground or very easy trails.
Brakes
When you want to stop the bike in time, the brakes are vital. The Hotrock 12 Coaster Girls has Coaster brakes. Coaster brakes are among the oldest brake types you can find on a bike. However, they have flaws, especially if the chain falls off.