Trek COBIA 2011 VS Trek 3900 2007 specs comparison
Trek Cobia
General Infos| Model | Cobia |
| Manufacturer | Trek |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-Matte Titanite Black and Candy Orange |
| Sizes |
- 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
| Sizes |
- 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | 29 X 2.1 (inches) Bontrager 29-2 |
| Bike rear tire | Not Available |
| Bike wheel size | 29 (inches) Wheels |
| Brakeset type | Promax Homet |
| Hubs for disc brakes | Shimano M475 |
| Rims manufacturer | 32-hole Bontrager Duster Disc 29 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alloy |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved Big Sweep |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager SSR |
| Headset size | 1 1/8 (inches) Threadless Semi Integrated |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 22/32/44 Teeth Shimano Alivio |
| Gear shift levers | SRAM X.5 |
| Rear gear set | 11 - 34 Teeth 9-speed |
Trek Cobia Fork System Data
| Derailleur (Front) | Shimano Deore |
| Derailleur (Rear) | SRAM X.7 |
| Fork material | Single |
| Fork type | 100 (millimeters) Travel RockShox Recon 29 |
Other Specs of Trek Cobia
| Component group sets | Mountain Mix |
| Pedals details | Wellgo LU-216A |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Evoke 1 |
| Seat post extension | 27.2 (millimeters) Diameter Bontrager SSR |
Trek 3900
General Infos| Model | 3900 |
| Manufacturer | Trek |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Matte Black and Matte Smooth Silver -Trans Blue |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.00 (inches) Bontrager Connection Trail |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano EF-50 Levers Tektro V Brakes |
| Hubs for disc brakes | Rear: Shimano RM-30 Front: Alloy |
| Rims manufacturer | Matrix 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alpha Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Approved |
| Headset size | Aheadset Slimstak |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 24/34/42 Teeth SR XCC-T102 |
| Gear shift levers | Shimano EF-50 |
| Rear gear set | 11 - 32 Teeth 8-speed |
Trek 3900 Fork System Data
| Derailleur (Front) | Shimano C-050 |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Single Crown Aluminum and steel |
| Fork type | 70 (millimeters) Travel InSync Grind 1 |
Other Specs of Trek 3900
| Component group sets | Shimano Mix |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Sport |
| Seat post extension | Bontrager Approved |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its Cobia bike manual
- Find All parts, tires and accessories of Trek Cobia Mountain bike here
- Get your Trek 3900 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek 3900 Mountain bike here