Trek 3900 DISC 2009 VS Specialized ROCKHOPPER 2011 specs comparison
Trek 3900 Disc
General Infos| Model | 3900 Disc |
| Manufacturer | Trek |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Matte Khaki |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) |
| 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 EZ Fire Integrated Levers ProMax Mechanical Disc Brakes |
| Hubs for disc brakes | Rear: Shimano M-475 Disc Front: Alloy |
| Rims manufacturer | Matrix 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alpha White Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Approved |
| Headset size | 1 1/8 (inches) Threadless VP A76C-TK |
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 Suntour XCC T102 |
| Gear shift levers | Shimano EF-50 EZ Fire Integrated |
| Rear gear set | 11 - 32 Teeth 8-speed |
Trek 3900 Disc Fork System Data
| Derailleur (Front) | Shimano C050 |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Single Crown |
| Fork type | 80 (millimeters) Travel SR Suntour XCT V2 |
Other Specs of Trek 3900 Disc
| Component group sets | Shimano Mix |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Approved |
| Seat post extension | Bontrager SSR |
Specialized Rockhopper
General Infos| Model | Rockhopper |
| Manufacturer | Specialized |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
- Wht and Red -Blk and Brn |
| Sizes |
- 13 (inches) - 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.0 (inches) Specialized The Captain Sport |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Alloy Levers Avid BB5 Mechanical Disc Brakes |
| Hubs for disc brakes | Rear: Forged Alloy Front: Forged Alloy Hi and low Flange |
| Rims manufacturer | 28-hole and 32-hole Alex RHD 26 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Butted Stainless |
Frame and Body Specs
| Frame materials | Specialized M4 Alloy |
| Frame type | TIG-welded |
| Handlebar construction | Butted Alloy Risebar |
| Handlebar extender | Optional |
| Handlebar stem details | 3D Forged Alloy |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | KMC X8 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano BB ES25 Octalink |
| Crankset parts and sizes | 22/32/42 Teeth SR Suntour |
| Gear shift levers | SRAM X.4 |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Rockhopper Fork System Data
| Derailleur (Front) | 34.9 (millimeters) Clamp Shimano Atlus |
| Derailleur (Rear) | SRAM X.5 |
| Fork material | Single Crown Alloy Steerer |
| Fork type | SR Suntour SF11 |
Other Specs of Specialized Rockhopper
| Component group sets | Mountain Mix |
| Pedals details | Plastic Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Rockhopper XC |
| Seat post extension | 30.9 (millimeters) Diameter Two-bolt Alloy Micro-Adjust |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its 3900 Disc bike manual
- Find All parts, tires and accessories of Trek 3900 Disc Mountain bike here
- Get your Specialized Rockhopper manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Rockhopper Mountain bike here