Bicycle Archive ยท Specification reportBicycle Archive ยท Specification reportVelopedia Archive ID 10370
| Model year | 2005 |
|---|---|
| Brand | Trek |
| Model | 3900 |
| Bicycle type | Mountain bike, front suspension |
| Archive ID | 10370 |
| Original MSRP | $329.99 |
| Colors | Yellow/Blue, Black |
| Sizes | 13", 16", 18", 19.5", 21", 22.5", womens 13", womens 16" |
| Frame construction | TIG-welded |
|---|---|
| Frame material | Alpha Aluminum |
| Fork | InSync Grind 1, 70mm |
| Fork material | Aluminum, single crown |
| Rear shock | N/A |
| Component group | Mountain Mix |
|---|---|
| Shifters | Shimano ST-EF29 |
| Front derailleur | Shimano FD-C050 |
| Rear derailleur | Shimano Acera |
| Crankset | SR, 24/34/42 teeth |
| Rear cogs | 8-speed, 11 - 32 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Nylon |
| Brakes | Tektro aluminum brakes, Shimano levers |
|---|
| Handlebar | Bontrager |
|---|---|
| Handlebar extensions | Not included |
| Stem | Bontrager |
| Saddle | Bontrager Sport |
| Seatpost | Bontrager |
| Hubs | Front: aluminum, Q/R, Rear: Shimano FH-RM30 |
|---|---|
| Rims | Matrix 550 |
| Spokes | Stainless steel |
| 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 10, 2026.