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3900
Ride
- Base-level aluminum hardtail for all purpose cross country trail riding with short travel suspension.
Fit
- Confidence inspiring geometry gives the novice rider the proper fit for most cross country trails. Available in six sizes and three WSD for the best fit possible.
Technology
- Alpha White Aluminum, Trek's value aluminum with externally relieved head tube and bi-axial down tube and disc compatible dropouts
| Frameset | |
|---|---|
| Sizes | 13, 16, 18, 19.5, 21, 22.5" |
| Frame | Alpha White Aluminum w/externally relieved head tube, bi-axial down tube, disc compatible dropouts |
| Front Suspension | SR Suntour XCT V2 w/preload, 80mm |
| Wheels | |
| Wheels | Alloy front hub, Shimano RM30 rear hub; Matrix 550 rims |
| Tires | Bontrager Connection Trail, 26x2.0"; 27 tpi |
| 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 |
| Components | |
| Saddle | Bontrager Approved |
| Seat Post | Bontrager Approved |
| Handlebars | Bontrager Approved, 30mm rise |
| Stem | Bontrager Approved, 25 degree |
| Headset | Aheadset Slimstak w/semi-cartridge bearings, sealed |
| Brakeset | Tektro V w/Shimano EF50 levers |
Display measurement as: Inches or Centimeters
| Frame Size | Head Angle | Seat Angle | EFF Top Tube | Chain Stay | Bottom Bracket | Offset | Wheel Base |
|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | |
| XS 13 in | 70.0° | 74.0° | 52.5 cm20.7 in | 43.0 cm16.9 in | 28.7 cm11.3 in | 3.8 cm1.5 in | 101.9 cm40.1 in |
| S 16 in | 70.5° | 73.5° | 55.5 cm21.9 in | 43.0 cm16.9 in | 29.1 cm11.5 in | 3.8 cm1.5 in | 104.0 cm40.9 in |
| M 18 in | 70.5° | 73.5° | 57.0 cm22.4 in | 43.0 cm16.9 in | 29.3 cm11.5 in | 3.8 cm1.5 in | 105.7 cm41.6 in |
| M 19.5 in | 70.5° | 73.0° | 58.5 cm23.0 in | 43.0 cm16.9 in | 29.3 cm11.5 in | 3.8 cm1.5 in | 106.8 cm42.0 in |
| L 21 in | 70.5° | 73.0° | 59.5 cm23.4 in | 43.0 cm16.9 in | 29.3 cm11.5 in | 3.8 cm1.5 in | 107.9 cm42.5 in |
| L 22.5 in | 70.5° | 72.5° | 60.5 cm23.8 in | 43.0 cm16.9 in | 29.5 cm11.6 in | 3.8 cm1.5 in | 108.4 cm42.7 in |
| XL 24 in | 70.5° | 72.0° | 61.5 cm24.2 in | 43.0 cm16.9 in | 29.7 cm11.7 in | 3.8 cm1.5 in | 108.9 cm42.9 in |
| Frame Size | Actual Frame Size | Trail | Stand Over | Seat Tube | Head Tube |
|---|---|---|---|---|---|
| XS 13 in | 33.0 cm13.0 in | 8.1 cm3.2 in | 65.4 cm25.7 in | 33.0 cm13.0 in | 10.5 cm4.1 in |
| S 16 in | 40.6 cm16.0 in | 7.8 cm3.1 in | 70.6 cm27.8 in | 40.6 cm16.0 in | 10.5 cm4.1 in |
| M 18 in | 45.7 cm18.0 in | 7.8 cm3.1 in | 74.6 cm29.4 in | 45.7 cm18.0 in | 12.5 cm4.9 in |
| M 19.5 in | 49.5 cm19.5 in | 7.8 cm3.1 in | 77.6 cm30.6 in | 49.5 cm19.5 in | 14.5 cm5.7 in |
| L 21 in | 53.3 cm21.0 in | 7.8 cm3.1 in | 80.7 cm31.8 in | 53.3 cm21.0 in | 16.5 cm6.5 in |
| L 22.5 in | 57.1 cm22.5 in | 7.8 cm3.1 in | 83.9 cm33.0 in | 57.1 cm22.5 in | 18.5 cm7.3 in |
| XL 24 in | 61.0 cm24.0 in | 7.8 cm3.1 in | 87.0 cm34.3 in | 61.0 cm24.0 in | 20.5 cm8.1 in |
How does this bike stack up?
Here's an overview of the various component manufacturers' product lines.
Click on the links below for more detailed information on each.
bike.shimano.com
Providing a complete line of wheels and components to riders at all levels of cycling, from recreation to professional competition.
bontrager.com
Wheelworks and components used by the world's top racers and freeriders. Featured on the ProTour, Ironman, and 24-hour circuits.
sram.com
Offering a complete line of drivetrain components, suspension systems, braking systems and high-performance bicycle maintenance products.
clixqr.com
Revolutionary wheel release systems that let you install and lock your front wheel with no cam adjustment, and with only one hand.