Trek 3900 DISC 2011 VS Specialized ROCKHOPPER EXPERT 29ER 2011 specs comparison
Trek 3900 Disc
General Infos| Model | 3900 Disc |
| Manufacturer | Trek |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-Deep Blue |
| 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 2.0 (inches) Bontrager LT3 |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano EF50 Levers Tektro Novela Brakes |
| Hubs for disc brakes | Rear: Shimano Alloy M475 Front: Formula DC20 |
| Rims manufacturer | 36-hole Bontrager 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alloy |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Approved |
| 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 | 24/34/42 Teeth Shimano M171 |
| Gear shift levers | Shimano EF51 |
| Rear gear set | 11 - 32 Teeth 8-speed |
Trek 3900 Disc Fork System Data
| Derailleur (Front) | Shimano M190 |
| Derailleur (Rear) | Shimano M360 |
| Fork material | Single |
| Fork type | 100 (millimeters) Travel SR Suntour XCT |
Other Specs of Trek 3900 Disc
| Component group sets | Shimano Mix |
| Pedals details | Wellgo Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontager SSR |
| Seat post extension | 31.6 (millimeters) Diameter Bontrager SSR |
Specialized Rockhopper Expert 29er
General Infos| Model | Rockhopper Expert 29er |
| Manufacturer | Specialized |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-Blk and Gry |
| Sizes |
- 15.5 (inches) - 17.5 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | 29 X 2.0 (inches) Specialized The Captain Control |
| Bike rear tire | Not Available |
| Bike wheel size | 29 (inches) Wheels |
| Brakeset type | Shimano BR-M505 Levers Shimano BR-M505 Brakes |
| Hubs for disc brakes | Rear: Forged Alloy Mid Flange Front: Forged Alloy Hi and low Flange |
| Rims manufacturer | 32-hole and 36-hole Alex RHD 29 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Butted Stainless |
Frame and Body Specs
| Frame materials | Specialized M4SL 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 Campy Spec Integrated Sealed Cartridge Bearing |
Gearing Specifications
| Bicycle chain | KMC X9 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano BB ES25 Octalink |
| Crankset parts and sizes | 22/32/44 Teeth Shimano FC-M430-8 |
| Gear shift levers | Shimano SL-M590 Deore Trigger |
| Rear gear set | 11 - 34 Teeth 9-speed |
Specialized Rockhopper Expert 29er Fork System Data
| Derailleur (Front) | 34.9 (millimeters) Bottom Swing Top Pull Shimano Alivio |
| Derailleur (Rear) | Shimano Deore 9sp Shadow Long Cage |
| Fork material | Single Crown Alloy Steerer |
| Fork type | RockShox Tora TK 29 SL |
Other Specs of Specialized Rockhopper Expert 29er
| Component group sets | Mountain Mix |
| Pedals details | Alloy |
| 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 Expert 29er manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Rockhopper Expert 29er Mountain bike here