Specialized ROCKHOPPER A1 FS 1998 VS Trek 820 WSD 2011 specs comparison
Specialized Rockhopper A1 FS
General Infos| Model | Rockhopper A1 FS |
| Manufacturer | Specialized |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
- team red -Blue |
| 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 1.90 (inches) Specialized Dirt Master Front: 26 X 1.90 (inches) Specialized Dirt Control |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Dia-Compe DP-7N Levers Dia-Compe VC-757 Brakes |
| Hubs for disc brakes | Q and R Q and R Rear: Ritchey Aluminum Front: Specialized Aluminum |
| Rims manufacturer | 32-hole Rear: Ritchey Rock OCR Front: Ritchey Rock SCX |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Specialized A1 Premium Plus Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Specialized Aluminum |
| Handlebar extender | Optional |
| Handlebar stem details | Specialized Aluminum |
| Headset size | 1 1/8 (inches) Threadless Ritchey Logic |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano IG |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Specialized Sealed Cartridge |
| Crankset parts and sizes | 22/32/42 Teeth Specialized Strong Arm Expert |
| Gear shift levers | Shimano Rapidfire |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Rockhopper A1 FS Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano Alivio Top-swing |
| Derailleur (Rear) | Shimano Deore LX SGS |
| Fork material | Triple-clamp Crown Aluminum and magnesium |
| Fork type | Answer Manitou Spyder |
Other Specs of Specialized Rockhopper A1 FS
| Component group sets | Mountain Mix |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Prolong Evolution Carbotech |
| Seat post extension | 30.9 (millimeters) Diameter Aluminum Micro-adjust |
Trek 820 WSD
General Infos| Model | 820 WSD |
| Manufacturer | Trek |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-Crystal Pearl White |
| Sizes |
- Womens 13 (inches) - womens 16 (inches) - womens 19.5 (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 EF40 Levers Tektro V Brakes |
| Hubs for disc brakes | Rear: Formula FM31 Front: Formula FM21 |
| Rims manufacturer | 36-hole Bontrager 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Steel |
| 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 | 28/38/48 Teeth Hawk DX |
| Gear shift levers | Shimano EF40 |
| Rear gear set | 13 - 34 Teeth 7-speed |
Trek 820 WSD Fork System Data
| Derailleur (Front) | Shimano TX51 |
| Derailleur (Rear) | Shimano TX31 |
| Fork material | Single |
| Fork type | 63 (millimeters) Travel SR Suntour M-2025 |
Other Specs of Trek 820 WSD
| Component group sets | Shimano Mix |
| Pedals details | Wellgo Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontager SSR WSD |
| Seat post extension | 31.6 (millimeters) Diameter Bontrager SSR |
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 820 WSD manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek 820 WSD Mountain bike here