Bicycle Archive · Specification report

2008 Specialized Hotrock Coaster

Velopedia Archive ID 24052

Overview

Model year	2008
Brand	Specialized
Model	Hotrock Coaster
Bicycle type	Juvenile
Archive ID	24052
Original MSRP	$180.00
Colors	Blue/black, green/black, white, purple
Sizes	20" wheel

Frameset

Frame construction	TIG-welded
Frame material	A1 premium aluminum
Fork	Specialized
Fork material	Hi-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	Juvenile Mix
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Heat-treated Hi-Tensile steel, 36 teeth
Bottom bracket	Loose ball OPC
Rear cogs	1-speed, 18 teeth
Chain	KMC Z-410, 1/2 x 1/8"
Pedals	Composite platform

Brakes

Brakes	Coaster w/ Tektro "V" rear brakes, Tektro Jr. rear levers

Cockpit & contact points

Headset	1 1/8" threadless
Handlebar	Hi-tensile steel
Handlebar extensions	Not included
Stem	Alloy
Saddle	Specialized Kids
Seatpost	Steel, 25.4mm diameter

Wheels & tires

Hubs	Front: Joy Tech steel, Rear: Joy Tech coaster
Rims	Alloy, 36-hole
Spokes	UCP, 14ga. (2.0mm) straight gauge
Front tire	20 x 2.125" Specialized Roller wire
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 8, 2026.