Trek 820 2011 VS Specialized ROCKHOPPER A1 PRO FS 2001 specs comparison
Trek 820
General Infos| Model | 820 |
| Manufacturer | Trek |
| Year of production | 2011 |
| Current price | Check price Here ==> |
| Color choice |
-Gloss Black |
| 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 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 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
| 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 A1 Pro FS
General Infos| Model | Rockhopper A1 Pro FS |
| Manufacturer | Specialized |
| Year of production | 2001 |
| Current price | Check price Here ==> |
| Color choice |
- Red and White -Blue and Black |
| 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 Team Master SL Pro Front: 26 X 1.90 (inches) Specialized Team Control SL Pro |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano Deore Levers ProMax Linear-pull Brakes |
| Hubs for disc brakes | Rear: Specialized Megaphone Comp Front: Specialized Aluminum |
| Rims manufacturer | 32-hole Mavic X 139 N |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge Specialized Stainless Steel |
Frame and Body Specs
| Frame materials | Double Butted Specialized A1 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Specialized Aluminum |
| Handlebar extender | Optional |
| Handlebar stem details | Specialized Aluminum |
| Headset size | 1 1/8 (inches) Threadless Tange Seiki |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 113 (millimeters) Spindle Shimano BB-LP27 |
| Crankset parts and sizes | 22/32/44 Teeth Specialized Forearm 2 Comp |
| Gear shift levers | Shimano Deore LX RapidFire SL |
| Rear gear set | 11 - 32 Teeth 9-speed |
Specialized Rockhopper A1 Pro FS Fork System Data
| Derailleur (Front) | Shimano Deore LX |
| Derailleur (Rear) | Shimano Deore XT SGS |
| Fork material | Triple-clamp Crown Aluminum and magnesium |
| Fork type | Rock Shox Judy XC |
Other Specs of Specialized Rockhopper A1 Pro FS
| Component group sets | Mountain Mix |
| Pedals details | Shimano PD-M515 SPD |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Body Geometry Sport |
| Seat post extension | 30.9 (millimeters) Diameter Specialized Aluminum |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its 820 bike manual
- Find All parts, tires and accessories of Trek 820 Mountain bike here
- Get your Specialized Rockhopper A1 Pro FS manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Rockhopper A1 Pro FS Mountain bike here