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Trek 3900 WSD

Trek 3900 2009

Cross Country

Size / 13", 16"

Manufacturer Website

At a glance

The 2009 Trek 3900 WSD is an Cross Country Aluminium / Alloy mountain bike. It sports 26" wheels, comes in a range of sizes, including 13", 16" and a Shimano drivetrain. The bike is part of Trek's 3900 range of mountain bikes.

Where To Buy

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Trek 3900 WSD
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  • Frame
    Alpha White Aluminum w/externally relieved head tube, bi-axial down tube, disc compatible dropouts
  • Wheels
    Alloy front hub, Shimano RM30 rear hub; Matrix 550 rims w/brushed sidewalls
  • Wheel Size
  • Tires
    Bontrager Connection Trail, 26x2.0"; 27 tpi
  • Crank
    SR Suntour XCC-T102 42/34/24
  • Front Derailleur
    Shimano C050
  • Rear Derailleur
    Shimano Acera
  • Shifters
    Shimano EF50, 8 speed
  • Brakeset
    Tektro V w/Shimano EF50 levers
  • Handlebar
    Bontrager Approved, 30mm rise
  • Saddle
    Bontrager Approved FIT
  • Seatpost
    Bontrager SSR, 20mm offset
  • Stem
    Bontrager Approved, 40 degree
  • Headset
    VP-A76C-TK, 1 1/8" semi-cartridge, sealed


Q: Where to buy a 2009 Trek 3900 WSD?

The 2009 Trek 3900 WSD may be purchased directly from Trek.

Q: What size wheels does the 2009 Trek 3900 WSD have?

The 2009 Trek 3900 WSD has 26" wheels.

Q: What size 2009 Trek 3900 WSD should I get?

The 2009 Trek 3900 WSD comes in sizes 13", 16". After measuring your height, use the size chart below to find the typical Trek 3900 WSD size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm)Rider Height (in)Frame Size
148cm - 158cm4'10" - 5'2"XS
158cm - 168cm5'2" - 5'6"S
168cm - 178cm5'6" - 5' 10"M
178cm - 185cm5'10" - 6'1"L
185cm - 193cm6'1" - 6'4"XL
193cm - 198cm6'4" - 6'6"XXL


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