Bicycle Archive · Specification report

2011 Trek 820 WSD

Velopedia Archive ID 22668

Overview

Model year	2011
Brand	Trek
Model	820 WSD
Bicycle type	Mountain bike, front suspension
Archive ID	22668
Original MSRP	$349.99
Colors	Crystal Pearl White
Sizes	Womens 13", womens 16", womens 19.5"

Frameset

Frame construction	TIG-welded
Frame material	Steel
Fork	SR Suntour M-2025, 63mm travel
Fork material	Single
Rear shock	N/A

Drivetrain

Component group	Shimano mix
Shifters	Shimano EF40
Front derailleur	Shimano TX51
Rear derailleur	Shimano TX31
Crankset	Hawk DX, 28/38/48 teeth
Cassette	Shimano TZ31
Rear cogs	7-speed, 13 - 34 teeth
Pedals	Wellgo Nylon Platform

Brakes

Brakes	Tektro V brakes, Shimano EF40 levers

Cockpit & contact points

Headset	1 1/8" threadless Semi integrated
Handlebar	Bontrager Approved Riser
Handlebar extensions	Not included
Stem	Bontrager Approved
Saddle	Bontager SSR WSD
Seatpost	Bontrager SSR, 31.6mm diameter

Wheels & tires

Hubs	Front: Formula FM21, Rear: Formula FM31
Rims	Bontrager 550, 36-hole
Front tire	26 x 2.0" Bontrager LT3
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 5, 2026.