Specialized ROCKHOPPER PRO DISC 2004 VS Trek 820 2000 specs comparison
Specialized Rockhopper Pro Disc
General Infos| Model | Rockhopper Pro Disc |
| Manufacturer | Specialized |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
-Red |
| Sizes |
- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) |
| Sizes |
- 15 (inches) - 17 (inches) - 19 (inches) - 21 (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-M515 Mechanical Disc Brakes |
| Hubs for disc brakes | Rear: Shimano HB-M475 Disc Front: Specialized Disc |
| 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 Ritchey Logic |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-HG73 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 113 (millimeters) Spindle Shimano BB-ES30 |
| Crankset parts and sizes | 22/32/44 Teeth Specialized Forearm II |
| Gear shift levers | Shimano Deore RapidFire SL |
| Rear gear set | 11 - 32 Teeth 9-speed |
Specialized Rockhopper Pro Disc 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 Pro Disc
| Component group sets | Mountain Mix |
| Pedals details | Shimano PD-M505 SPD |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Body Geometry Pro |
| Seat post extension | 30.9 (millimeters) Diameter Aluminum |
Trek 820
General Infos| Model | 820 |
| Manufacturer | Trek |
| Year of production | 2000 |
| Current price | Check price Here ==> |
| Color choice |
- Rainforest -Gloss Black and Bright Silver |
| Sizes |
- Extra small - Small - Medium - Large - Extra large |
Wheels And Breaking System
| Bike front tire | 26 X 1.95 (inches) Multi-terrain |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Aluminum Linear-pull Levers Aluminum Linear-pull Brakes |
| Hubs for disc brakes | Alloy |
| Rims manufacturer | 36-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 2.0 (millimeters) Stainless Steel |
Frame and Body Specs
| Frame materials | Butted Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Alloy |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy |
| Headset size | Aheadset SE-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 24/34/42 Teeth Shimano Altus C90 |
| Gear shift levers | Shimano Acera EZ Fire Plus |
| Rear gear set | 11 - 28 Teeth 7-speed |
Trek 820 Fork System Data
| Derailleur (Front) | Shimano Altus C90 Top-swing |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Triple-clamp |
| Fork type | 2.5 (inches) Travel Sync 288 |
Other Specs of Trek 820
| Component group sets | Mountain Mix |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Oasis Supersoft |
| Seat post extension | Alloy |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Rockhopper Pro Disc bike manual
- Find All parts, tires and accessories of Specialized Rockhopper Pro Disc 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