Trek JET 20 2004 VS Specialized HOTROCK 12 GIRLS 2007 specs comparison
Trek Jet 20
General Infos| Model | Jet 20 |
| Manufacturer | Trek |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
- Red -Black and Silver |
| Sizes |
- Boys |
| Sizes |
- Boys |
Wheels And Breaking System
| Bike front tire | 20 X 2.125 (inches) Kenda K-Rad |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Coaster Brake Rear |
| Hubs for disc brakes | Nutted Steel |
| Rims manufacturer | Chrome Steel |
| Spoke nipples type | Not Available |
| Spoke wheel | Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Rise Steel |
| Handlebar extender | Optional |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) Threaded Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 32 Teeth Steel One-piece |
| Gear shift levers | Not Available |
| Rear gear set | 19 Teeth 1-speed |
Trek Jet 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Trek |
Other Specs of Trek Jet 20
| Component group sets | Not Available |
| Pedals details | Platform Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Trek Jr |
| Seat post extension | Steel |
Specialized Hotrock 12 Girls
General Infos| Model | Hotrock 12 Girls |
| Manufacturer | Specialized |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
- Blue and Black -Pink and Black |
| Sizes |
- Standard size for everyone |
Wheels And Breaking System
| Bike front tire | 12 X 2.125 (inches) Specialized Roller |
| Bike rear tire | Not Available |
| Bike wheel size | 12 (inches) Wheels |
| Brakeset type | Coaster Rear |
| Hubs for disc brakes | Joy Tech Steel Nutted |
| Rims manufacturer | 16-hole Alloy Single Wall |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight Gauge UCP |
Frame and Body Specs
| Frame materials | Specialized A1 Premium Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Alloy 2pc |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy 1 (inches) Quill |
| Headset size | 1 (inches) Threaded |
Gearing Specifications
| Bicycle chain | KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Loose Ball |
| Crankset parts and sizes | 28 Teeth Heat Treated Hi-Ten |
| Gear shift levers | Not Available |
| Rear gear set | 1-speed |
Specialized Hotrock 12 Girls Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Aluminum and steel Steerer |
| Fork type | Specialized A1 |
Other Specs of Specialized Hotrock 12 Girls
| Component group sets | Juvenile Mix |
| Pedals details | Composite Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Hotrock Jumping |
| Seat post extension | 22.2 (millimeters) Diameter Steel |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its Jet 20 bike manual
- Find All parts, tires and accessories of Trek Jet 20 Youth here
- Get your Specialized Hotrock 12 Girls manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Hotrock 12 Girls Youth here