Bicycle Archive · Specification report

2008 Trek Jet 20

Velopedia Archive ID 12903

Overview

Model year	2008
Brand	Trek
Model	Jet 20
Bicycle type	Juvenile
Archive ID	12903
Original MSRP	$189.99
Colors	White/Blue, Black/Orange

Frameset

Frame construction	TIG-welded
Frame material	Alpha White Aluminum
Fork material	Steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	Juvenile Mix
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Dialed 4.5", 32 teeth
Rear cogs	1-speed, 19 teeth
Pedals	Dialed 20" platform

Brakes

Brakes	Coast brake/ alloy linear pull rear brakes, Alloy Dialed rear levers

Cockpit & contact points

Headset	Adjustable ball bearing
Handlebar	Steel w/Dialed 20" grips
Handlebar extensions	Not included
Stem	Aluminum
Saddle	Dialed 20"
Seatpost	Steel w/ Dialed height indicator

Wheels & tires

Hubs	Steel
Rims	Alloy, 32-hole
Front tire	20 x 2.125" Cross Knobby
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.