Specialized ROCKHOPPER 2005 VS Trek 820 2010 specs comparison
Specialized Rockhopper
General Infos| Model | Rockhopper |
| Manufacturer | Specialized |
| Year of production | 2005 |
| Current price | Check price Here ==> |
| Color choice |
-Yellow |
| 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 2.20 (inches) Specialized Adrenaline |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano Alivo Levers Tektro Linear-pull Brakes |
| Hubs for disc brakes | Joytech QR |
| Rims manufacturer | 32-hole Alex DH-20 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | A1 Premium Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Aluminum |
| Handlebar extender | Not Available |
| Handlebar stem details | Aluminum |
| Headset size | 1 1/8 (inches) Threadless Sealed Cartridge |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-IG31 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 118 (millimeters) Spindle TruVativ |
| Crankset parts and sizes | 22/32/42 Teeth TruVativ Five-D |
| Gear shift levers | Shimano Alivio |
| Rear gear set | 11 - 32 Teeth 8-speed |
Specialized Rockhopper Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 34.9 (millimeters) Shimano Alivio |
| Derailleur (Rear) | Shimano Deore |
| Fork material | Single Crown Aluminum and magnesium |
| Fork type | 100 (millimeters) Manitou Axel Comp |
Other Specs of Specialized Rockhopper
| Component group sets | Mountain Mix |
| Pedals details | Steel Cage |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized BG Sport MTB |
| Seat post extension | 30.9 (millimeters) Diameter Aluminum Micro-adjust |
Trek 820
General Infos| Model | 820 |
| Manufacturer | Trek |
| Year of production | 2010 |
| Current price | Check price Here ==> |
| Color choice |
-Gloss Black |
| Sizes |
- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.00 (inches) Bontrager LT-3 |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano EF-40 Levers Tektro V Brakes |
| Hubs for disc brakes | Formula FM-31 Alloy |
| Rims manufacturer | Bontrager 550 |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Trek Custom Steel With CroMoly Seat Tube |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Approved Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Approved |
| Headset size | 1 1/8 (inches) Threadless VP-A71-TK Steel |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 48/38/28 Teeth Hawk DX |
| Gear shift levers | Shimano EF-40 |
| Rear gear set | 13 - 34 Teeth 7-speed |
Trek 820 Fork System Data
| Derailleur (Front) | Shimano C051 |
| Derailleur (Rear) | Shimano TX31 |
| Fork material | Single Crown |
| Fork type | 63 (millimeters) Travel SR Suntour M-2025 |
Other Specs of Trek 820
| Component group sets | Mountain Mix |
| Pedals details | Wellgo Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager SSR |
| Seat post extension | 31.6 (millimeters) Diameter Bontrager SSR |
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Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Rockhopper bike manual
- Find All parts, tires and accessories of Specialized Rockhopper 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