Specialized ROCKHOPPER COMP 2004 VS Trek 820 2007 specs comparison
Specialized Rockhopper Comp
General Infos| Model | Rockhopper Comp |
| Manufacturer | Specialized |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
-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 | 26 X 2.00 (inches) Specialized Roll-X |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano BR-420 Levers Shimano BR-420 Brakes |
| Hubs for disc brakes | Q and R Joy Tech Aluminum |
| Rims manufacturer | 32-hole Mavic XM 117 Disc |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 15ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | 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 Aluminum Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-HG53 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 113 (millimeters) Spindle Shimano BB-UN25 |
| Crankset parts and sizes | 22/32/44 Teeth Specialized Forearm II Comp |
| Gear shift levers | Shimano Deore RapidFire SL |
| Rear gear set | 11 - 32 Teeth 9-speed |
Specialized Rockhopper Comp Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 34.9 (millimeters) Shimano Deore |
| Derailleur (Rear) | Shimano Deore LX SGS |
| Fork material | Single Crown Aluminum |
| Fork type | 80 (millimeters) Travel Answer Manitou Axel Elite |
Other Specs of Specialized Rockhopper Comp
| Component group sets | Mountain Mix |
| Pedals details | Shimano PD-M505 SPD |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Body Geometry |
| Seat post extension | 30.9 (millimeters) Diameter Specialized Aluminum |
Trek 820
General Infos| Model | 820 |
| Manufacturer | Trek |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Matte Navy and Matte Bluegray -Hot Orange and Metallic Dark Silver |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (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 | Alloy |
| Rims manufacturer | Matrix 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Hi-tensile Steel and chromoly |
| 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 | 28/38/48 Teeth SR XCC-T208 |
| Gear shift levers | Shimano EF-50 |
| Rear gear set | 13 - 34 Teeth 7-speed |
Trek 820 Fork System Data
| Derailleur (Front) | Shimano C-051 |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Single Crown Aluminum and steel |
| Fork type | 63 (millimeters) Travel RST 191 C7 |
Other Specs of Trek 820
| Component group sets | Shimano Mix |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Sport |
| 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 Comp bike manual
- Find All parts, tires and accessories of Specialized Rockhopper Comp Mountain bike here
- Get your Trek 820 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek 820 Mountain bike here