Bicycle Archive · Specification report

2009 Specialized Hotrock 20 Girls Coaster

Velopedia Archive ID 15739

Overview

Model year	2009
Brand	Specialized
Model	Hotrock 20 Girls Coaster
Bicycle type	Juvenile
Archive ID	15739
Original MSRP	$220.00
Colors	Gloss Light Purple/Dark Purple, Gloss Silver/White

Frameset

Frame construction	TIG-welded
Frame material	Specialized A1 Premium Aluminum
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-Ten, 36 teeth
Bottom bracket	Loose ball
Cassette	Freewheel
Rear cogs	1-speed
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Composite

Brakes

Brakes	Tektro linear-pull/coaster rear brakes, Alloy rear levers

Cockpit & contact points

Headset	1 1/8" Threadless
Handlebar	Steel
Handlebar extensions	Not included
Stem	Alloy
Saddle	Specialized
Seatpost	Steel, 25.4mm diameter

Wheels & tires

Hubs	Front: Joy Tech steel nutted, Rear: Joy Tech steel nutted coaster
Rims	Alloy, 36-hole
Spokes	14ga. (2.0mm)
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 October 5, 2026.