The last but not least of the Trek 3900 series is the Trek 3900 WSD Womens 2009 Mountain Bike. Parts are almost the same all across the board, but the 2009 Trek 3900 WSD Womens Mountain Bike does not come with disc brakes, top tube slopes down, frame sizes are 13, 16, Alloy front hub and Shimano RM30 rear hub. Lastly, the Trek 3900 WSD 2009 has a elegant color scheme, which is light blue and white.

Trek 3900 WSD Womens 2009 Mountain Bike

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Trek 3900 WSD Womens 2009 Mountain Bike Frameset
Sizes: Women’s 13, 16″
Frame: Alpha White Aluminum w/externally relieved head tube, bi-axial down tube, disc compatible dropouts
Front Suspension: SR Suntour XCT V2 w/preload (13″ size: custom spring weight), 80mm
Rear Shock: n/a
Fork: n/a

Trek 3900 WSD Womens 2009 Mountain Bike Wheels
Wheels: Alloy front hub, Shimano RM30 rear hub; Matrix 550 rims w/brushed sidewalls
Tires: Bontrager Connection Trail, 26×2.0″; 27 tpi

Trek 3900 WSD Womens 2009 Mountain Bike Drivetrain
Shifters: Shimano EF50, 8 speed
Front Derailleur: Shimano C050
Rear Derailleur: Shimano Acera
Crank: SR Suntour XCC-T102 42/34/24
Cassette: SRAM PG830 11-32, 8 speed
Pedals: Nylon platform

Trek 3900 WSD Womens 2009 Mountain Bike Components
Saddle: Bontrager Approved FIT
Seat Post: Bontrager SSR, 20mm offset
Handlebars: Bontrager Approved, 30mm rise
Stem: Bontrager Approved, 40 degree
Headset: VP-A76C-TK, 1 1/8″ semi-cartridge, sealed
Brakeset: Tektro V w/Shimano EF50 levers
Extras: Bontrager Select FIT grips