Electra ROCKET 7 1999 VS Trek 820 2011 specs comparison
Electra Rocket 7
General Infos| Model | Rocket 7 |
| Manufacturer | Electra |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Flat Purple-Grey |
| Sizes |
- 18.5 (inches) |
| Sizes |
- 18.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 1.95 (inches) Maxxis |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Dia-Compe DP-8 Levers Dia-Compe 737 Direct Pull Front and Shimano Nexus Roller Brake Rear Brakes |
| Hubs for disc brakes | Q and R Rear: Shimano Nexus Inter 7 Front: Aluminum |
| Rims manufacturer | 36-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | 7000 aluminum c |
| Frame type | TIG-welded |
| Handlebar construction | Kalloy Aluminum Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Kalloy Aluminum |
| Headset size | 1 1/8 (inches) Threadless YST |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Shimano BB-CT91 |
| Crankset parts and sizes | 44 Teeth C.P.I. |
| Gear shift levers | Grip Shift SRT-400 Rear |
| Rear gear set | 22 Teeth 7-speed Internal |
Electra Rocket 7 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Triple-clamp Crown Aluminum and chromoly |
| Fork type | 2.5 (inches) Travel RST 281 |
Other Specs of Electra Rocket 7
| Component group sets | Shimano Nexus |
| Pedals details | Wellgo Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | EBC Performance |
| Seat post extension | 27.2 (millimeters) Diameter Kalloy Aluminum |
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) |
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 |
Useful links and guides ....
- To know more about this exacte bike, Electra provided us with the latest version of its Rocket 7 bike manual
- Find All parts, tires and accessories of Electra Rocket 7 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
