Trek JET 20 2008 VS Specialized HARDROCK (01) 1998 specs comparison
Trek Jet 20
General Infos| Model | Jet 20 |
| Manufacturer | Trek |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- Black and Orange -White and Blue |
| Sizes |
- Not available |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | 20 X 2.125 (inches) Cross Knobby |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Alloy Dialed Rear Levers Coast Brake and Alloy Linear Pull Rear Brakes |
| Hubs for disc brakes | Steel |
| Rims manufacturer | 32-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | Alpha White Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Steel With Dialed 20 (inches) Grips |
| Handlebar extender | Optional |
| Handlebar stem details | Aluminum |
| Headset size | Adjustable Ball Bearing |
Gearing Specifications
| Bicycle chain | Not Available |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 32 Teeth Dialed 4.5 (inches) |
| 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 Steel |
| Fork type | Not Available |
Other Specs of Trek Jet 20
| Component group sets | Juvenile Mix |
| Pedals details | Dialed 20 (inches) Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Dialed 20 (inches) |
| Seat post extension | Steel With Dialed Height Indicator |
Specialized Hardrock (01)
General Infos| Model | Hardrock (01) |
| Manufacturer | Specialized |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
-Blue |
| Sizes |
- Boys - girls |
Wheels And Breaking System
| Bike front tire | 24 X 1.95 (inches) Specialized Crossroads III |
| Bike rear tire | Not Available |
| Bike wheel size | 24 (inches) Wheels |
| Brakeset type | Aluminum Levers Shimano Cantilever Brakes |
| Hubs for disc brakes | Q and R Aluminum |
| Rims manufacturer | 36-hole Weinmann 519 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Chromoly Main Triangle and hi-tensile Steel Rear Stays |
| Frame type | TIG-welded |
| Handlebar construction | Steel |
| Handlebar extender | Optional |
| Handlebar stem details | Specialized Fast Fit |
| Headset size | 1 1/8 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) Shimano CN-UG50 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 24/34/42 Teeth Specialized Strong Arm |
| Gear shift levers | Grip Shift MRX-170 |
| Rear gear set | 11 - 28 Teeth 7-speed |
Specialized Hardrock (01) Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano AceraX Top-swing |
| Derailleur (Rear) | Shimano AceraX |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Specialized |
Other Specs of Specialized Hardrock (01)
| Component group sets | Mountain Mix |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | Specialized Softlite |
| Seat post extension | 30.4 (millimeters) Diameter Aluminum Micro-adjust |
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 Hardrock (01) manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized Hardrock (01) Youth here