Bicycle Archive · Specification report

2009 Trek 3900 WSD

Velopedia Archive ID 17700

Overview

Model year	2009
Brand	Trek
Model	3900 WSD
Bicycle type	Mountain bike, front suspension
Archive ID	17700
Original MSRP	$439.99
Colors	Soft Blue/Velvet Blue
Sizes	Womens 13", womens 16", womens 19.5"

Frameset

Frame construction	TIG-welded
Frame material	Alpha White Aluminum
Fork	SR Suntour XCT V2, 80mm travel
Fork material	Single crown
Rear shock	N/A

Drivetrain

Component group	Shimano mix
Shifters	Shimano EF-50 EZ Fire Integrated
Front derailleur	Shimano C050
Rear derailleur	Shimano Acera
Crankset	SR Suntour XCC T102, 24/34/42 teeth
Cassette	SRAM PG-830
Rear cogs	8-speed, 11 - 32 teeth
Pedals	Nylon platform

Brakes

Brakes	Tektro V-brake brakes, Shimano EF-50 EZ Fire Integrated levers

Cockpit & contact points

Headset	1 1/8" threadless VP A76C-TK
Handlebar	Bontrager Approved
Handlebar extensions	Not included
Stem	Bontrager Approved
Saddle	Bontrager Approved FIT
Seatpost	Bontrager SSR

Wheels & tires

Hubs	Front: Alloy, Rear: Shimano RM30
Rims	Matrix 550
Front tire	26 x 2.00" Bontrager Connection Trail
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 3, 2026.