Bicycle Archive ยท Specification reportBicycle Archive ยท Specification reportVelopedia Archive ID 17703
| Model year | 2009 |
|---|---|
| Brand | Trek |
| Model | 3900 |
| Bicycle type | Mountain bike, front suspension |
| Archive ID | 17703 |
| Original MSRP | $379.99 |
| Colors | Matte Khaki, Matte Blue/Brushed Silver |
| Sizes | 13", 16", 18", 19.5", 21", 22.5" |
| Frame construction | TIG-welded |
|---|---|
| Frame material | Alpha White Aluminum |
| Fork | SR Suntour M-2025, 80mm travel |
| Fork material | Single crown |
| Rear shock | N/A |
| Component group | Shimano mix |
|---|---|
| Shifters | Shimano EF-50 EZ Fire Integrated |
| Front derailleur | Shimano C051 |
| Rear derailleur | Shimano Acera |
| Crankset | SR Suntour XCC T-208, 28/38/48 teeth |
| Cassette | Sunrace |
| Rear cogs | 7-speed, 13 - 34 teeth |
| Pedals | Nylon platform |
| Brakes | Tektro V-brake brakes, Shimano EF-50 EZ Fire Integrated levers |
|---|
| Headset | 1 1/8" threadless VP A76C-TK |
|---|---|
| Handlebar | Bontrager Approved |
| Handlebar extensions | Not included |
| Stem | Bontrager Approved |
| Saddle | Bontrager Approved |
| Seatpost | Bontrager Approved |
| Hubs | Alloy |
|---|---|
| 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.