Electra BOMBER 21 1998 VS Trek JACK 1 2009 specs comparison
Electra Bomber 21
General Infos| Model | Bomber 21 |
| Manufacturer | Electra |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
-Electric red |
| Sizes |
- 18.5 (inches) |
| Sizes |
- 18.5 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.10 (inches) EBC All Terrain |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Tektro RBP-375A Levers Tektro 823 Linear-pull Brakes |
| Hubs for disc brakes | Shimano AceraX |
| Rims manufacturer | 36-hole EBC TA-8 Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | 4130 Chromoly Main Triangle and hi-tensile Steel Rear Stays |
| Frame type | TIG-welded |
| Handlebar construction | Kalloy Alloy Riser |
| Handlebar extender | Not Available |
| Handlebar stem details | Kalloy Aluminum |
| Headset size | 1 (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-LP26 |
| Crankset parts and sizes | 24/34/42 Teeth Shimano Alivio |
| Gear shift levers | Shimano STX RapidFire SL |
| Rear gear set | 11 - 30 Teeth 7-speed |
Electra Bomber 21 Fork System Data
| Derailleur (Front) | Top-pull Shimano AceraX Top-swing |
| Derailleur (Rear) | Shimano Alivio |
| Fork material | Triple-clamp Crown Aluminum and chromoly |
| Fork type | RST 280 |
Other Specs of Electra Bomber 21
| Component group sets | Shimano Alivio and AceraX |
| Pedals details | Wellgo Resin and aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | EBC Performance |
| Seat post extension | 26.8 (millimeters) Diameter Kalloy Aluminum Micro-adjust |
Trek Jack 1
General Infos| Model | Jack 1 |
| Manufacturer | Trek |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Gloss Navy |
| Sizes |
- Small - medium - large |
Wheels And Breaking System
| Bike front tire | 26 X 2.40 (inches) Bontrager Earl |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Shimano EF-50 EZ Fire Integrated Levers Tektro V-brake Brakes |
| Hubs for disc brakes | Shimano M475 |
| Rims manufacturer | Bontrager Camino |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alpha White Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Bontrager Earl |
| Handlebar extender | Optional |
| Handlebar stem details | Bontrager Earl |
| Headset size | 1 1/8 (inches) Aheadset Semi-cartridge |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 22/32/42 Teeth Shimano M341 |
| Gear shift levers | Shimano EF-50 EZ Fire Integrated |
| Rear gear set | 11 - 32 Teeth 8-speed |
Trek Jack 1 Fork System Data
| Derailleur (Front) | Shimano C050 |
| Derailleur (Rear) | Shimano Acera |
| Fork material | Single Crown |
| Fork type | 100 (millimeters) Travel RST Gila T7 |
Other Specs of Trek Jack 1
| Component group sets | Not Available |
| Pedals details | Alloy Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager Earl Jump Basic |
| Seat post extension | Bontrager Sport |
Useful links and guides ....
- To know more about this exacte bike, Electra provided us with the latest version of its Bomber 21 bike manual
- Find All parts, tires and accessories of Electra Bomber 21 Mountain bike here
- Get your Trek Jack 1 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Trek Jack 1 Mountain bike here