Bicycle Archive · Specification report

2004 Trek Bonnie

Velopedia Archive ID 31548

Overview

Model year	2004
Brand	Trek
Model	Bonnie
Bicycle type	Cruiser
Archive ID	31548
Original MSRP	$459.99
Colors	Pink
Sizes	Womens 17"

Frameset

Frame construction	TIG-welded
Frame material	Aluminum
Fork	Trek Cruiser springer
Fork material	Unicrown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	Shimano Nexus 7
Front derailleur	N/A
Rear derailleur	N/A
Crankset	3-piece aluminum, 32 teeth
Rear cogs	7-speed internal, 20 teeth
Chain	1/2 x 3/32"
Pedals	Nylon platform

Brakes

Brakes	Shimano coaster brake rear

Cockpit & contact points

Headset	1 1/8" steel
Handlebar	Steel, cruiser
Handlebar extensions	Not included
Stem	Aluminum
Saddle	Trek Webspring Comfort
Seatpost	Steel, 27.2mm diameter

Wheels & tires

Hubs	Front: aluminum, Rear: Shimano Nexus internal 7-speed
Rims	Aluminum, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 2.125" cruiser
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	609 mm
Head-tube angle	69.5°
Seat-tube angle	72.8°
Chainstay / rear center	450 mm
Wheelbase	1129 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 4, 2026.