Bicycle Archive · Specification report

2008 Specialized Hotrock 20

Velopedia Archive ID 24031

Overview

Model year	2008
Brand	Specialized
Model	Hotrock 20
Bicycle type	Juvenile mountain bike, suspension
Archive ID	24031
Original MSRP	$280.00
Colors	Blue/black, yellow/black, pink, blue
Sizes	20" wheel

Frameset

Frame construction	TIG-welded
Frame material	A1 premium aluminum
Fork	RST Capa C20, 50mm travel
Fork material	Steel/aluminum, single crown
Rear shock	N/A

Drivetrain

Component group	Juvenile Mix
Shifters	Shimano RS-31 Revo Twist
Front derailleur	N/A
Rear derailleur	Shimano RD-FT30
Crankset	Sugino, 36 teeth
Bottom bracket	VP, 128mm spindle
BB shell width	68mm
Rear cogs	6-speed, 14 - 28 teeth
Chain	KMC Z7, 1/2 x 3/32"
Pedals	Composite platform

Brakes

Brakes	Promax alloy "V" brakes, Tektro Jr. levers

Cockpit & contact points

Headset	1 1/8" threadless
Handlebar	Hi-tensile steel
Handlebar extensions	Not included
Stem	Alloy
Saddle	Specialized Kids
Seatpost	Alloy micro-adjust, 27.2mm diameter

Wheels & tires

Hubs	Forged alloy
Rims	Alex C-1000, 32-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 5, 2026.