Bicycle Archive · Specification report

2005 Specialized Hotrock 20" 6-Speed

Velopedia Archive ID 10666

Overview

Model year	2005
Brand	Specialized
Model	Hotrock 20" 6-Speed
Bicycle type	Juvenile
Archive ID	10666
Original MSRP	$260.00
Colors	Blue, Green, Red

Frameset

Frame construction	TIG-welded
Frame material	A1 Premium aluminum
Fork	RST 200K, 51mm
Fork material	Aluminum, single crown
Rear shock	N/A

Drivetrain

Component group	Juvenile Mix
Shifters	Shimano RS-41 Revo
Front derailleur	N/A
Rear derailleur	Shimano Tourney
Crankset	Specialized forged aluminum, 36 teeth
Bottom bracket	128mm spindle
BB shell width	68mm English
Rear cogs	6-speed, 14 - 28 teeth
Chain	Shimano IG, 1/2 x 3/32"
Pedals	Junior resin

Brakes

Brakes	Tektro linear-pull brakes, Tektro junior levers

Cockpit & contact points

Headset	1 1/8" threadless
Handlebar	Steel
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Specialized Jumping
Seatpost	Aluminum micro-adjust, 27.2mm diameter

Wheels & tires

Hubs	Aluminum, nutted
Rims	Aluminum, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.125" Specialized Roller
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 23, 2026.