Trek 820 2011 VS Specialized ROCKHOPPER COMP 2008 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 Comp
General Infos| Model | Rockhopper Comp |
| Manufacturer | Specialized |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- Red -Silver |
| Sizes |
- 15 - 17 - 19 - 21 - 23 |
Wheels And Breaking System
| Bike front tire | 26 X 2.00 (inches) Specialized Fast Track Control |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Avid FR-5 Levers Avid BB-5 Disc Brakes |
| Hubs for disc brakes | Specialized Hi Lo Disc |
| Rims manufacturer | 28-hole and 32-hole Alex RD |
| Spoke nipples type | Alloy Niples |
| Spoke wheel | 15ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | M4 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | 31.8 640 (millimeters) Wide With Graphic Specialized XC Rise |
| Handlebar extender | Optional |
| Handlebar stem details | 31.8 (millimeters) Clamp 3D Forged Specialized |
| Headset size | 1 1/8 (inches) Threadless Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC X9 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Shimano BB-ES25 |
| Crankset parts and sizes | 22/32/44 Teeth Shimano M442 |
| Gear shift levers | Shimano Deore |
| Rear gear set | 11 - 34 Teeth 9-speed |
Specialized Rockhopper Comp Fork System Data
| Derailleur (Front) | Dual-pull and clamp-on 34.9 (millimeters) Shimano Deore |
| Derailleur (Rear) | Shimano Deore |
| Fork material | Single |
| Fork type | 100 (millimeters) Travel RockShox Tora 302SL |
Other Specs of Specialized Rockhopper Comp
| Component group sets | Mountain Mix |
| Pedals details | Specialized Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Indie 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 820 bike manual
- Find All parts, tires and accessories of Trek 820 Mountain bike here
- Get your Specialized Rockhopper Comp manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Rockhopper Comp Mountain bike here