Specialized ROCKHOPPER A1 FS 1999 VS Trek 3900 WSD 2007 specs comparison
Specialized Rockhopper A1 FS
General Infos| Model | Rockhopper A1 FS |
| Manufacturer | Specialized |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
- Burnt Orange -Black |
| Sizes |
- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
| Sizes |
- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 26 X 1.95 (inches) Specialized Dirt Master Sport Front: 26 X 1.95 (inches) Specialized Dirt Control Sport |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Dia-Compe DP-7N Levers Dia-Compe 733 Direct Pull With Linear Spring Brakes |
| Hubs for disc brakes | Rear: Specialized STOUT Comp Front: Specialized Alloy |
| Rims manufacturer | 32-hole Rear: Ritchey Rock OCR Front: Ritchey Rock SCX |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge DT Stainless Steel |
Frame and Body Specs
| Frame materials | Specialized A1 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Specialized Alloy |
| Handlebar extender | Not Available |
| Handlebar stem details | Specialized A-1 |
| Headset size | 1 1/8 (inches) Threadless Specialized Headfirst Sport |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-HG72 |
| Bottom bracket shell width | 73 (millimeters) English |
| Bottom bracket type | 110 (millimeters) Spindle Specialized Comp |
| Crankset parts and sizes | 22/32/42 Teeth Specialized ForeArm Sport |
| Gear shift levers | Shimano Deore LX RapidFire SL |
| Rear gear set | 11 - 32 Teeth 9-speed |
Specialized Rockhopper A1 FS Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 35.0 (millimeters) Shimano STX-RC Top-swing |
| Derailleur (Rear) | Shimano Deore LX SGS |
| Fork material | Triple-clamp Crown Aluminum and magnesium |
| Fork type | 2.75 (inches) Travel Answer Manitou Spyder |
Other Specs of Specialized Rockhopper A1 FS
| Component group sets | Mountain Mix |
| Pedals details | Aluminum Cage With Clips & Straps |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Prolong |
| Seat post extension | 30.9 (millimeters) Diameter Specialized Micro-adjust |
Trek 3900 WSD
General Infos| Model | 3900 WSD |
| Manufacturer | Trek |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Pearl Green -Trans Blue |
| Sizes |
- Womens 13 (inches) - womens 16 (inches) - womens 19.5 (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 WSD 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 WSD
| Component group sets | Shimano Mix |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Sport FIT |
| Seat post extension | Bontrager Approved |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Rockhopper A1 FS bike manual
- Find All parts, tires and accessories of Specialized Rockhopper A1 FS Mountain bike here
- Get your Trek 3900 WSD manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek 3900 WSD Mountain bike here