Specialized HARDROCK 20 1997 VS GT STOMPER 20 2009 specs comparison
Specialized Hardrock 20
General Infos| Model | Hardrock 20 |
| Manufacturer | Specialized |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice |
- pink -Black |
| Sizes |
- Boys - girls |
| Sizes |
- Boys - girls |
Wheels And Breaking System
| Bike front tire | 20 X 1.80 (inches) Specialized Ground Control |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe PC-1N Junior Levers Aluminum Cantilever Brakes |
| Hubs for disc brakes | Nutted Steel |
| Rims manufacturer | 36-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | SBC DirectDrive |
| Frame type | TIG-welded |
| Handlebar construction | Steel |
| Handlebar extender | Not Available |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) |
| Bottom bracket shell width | American 24tpi |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 40 Teeth 1-piece Steel |
| Gear shift levers | Grip Shift MRX-170 |
| Rear gear set | 14 - 28 Teeth 6-speed |
Specialized Hardrock 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano Tourney TY-22 |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | SBC |
Other Specs of Specialized Hardrock 20
| Component group sets | Not Available |
| Pedals details | Resin |
| Rear shock absorber | Not Available |
| Saddle seat | SBC Mini |
| Seat post extension | 26.2 (millimeters) Diameter Steel Pillar |
GT Stomper 20
General Infos| Model | Stomper 20 |
| Manufacturer | GT |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Red |
| Sizes |
- Standard size for everyone |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Kenda ATB Dual Purpose |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Alloy Short Reach Levers Tektro Linear Brakes |
| Hubs for disc brakes | Alloy |
| Rims manufacturer | Aluminum |
| Spoke nipples type | Brass |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | GT 6061 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Riser |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy |
| Headset size | 1 1/8 (inches) Aheadset |
Gearing Specifications
| Bicycle chain | Uniglide |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | 3-piece |
| Crankset parts and sizes | 36 Teeth Cotterless Aluminum |
| Gear shift levers | SRAM MRX |
| Rear gear set | 14 - 28 Teeth 7-speed |
GT Stomper 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano TX30 |
| Fork material | Single Crown Alloy |
| Fork type | 75 (millimeters) Travel SR Suntour M2000 |
Other Specs of GT Stomper 20
| Component group sets | Juvenile Mix |
| Pedals details | High Impact Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Boys Anatomic MTN |
| Seat post extension | Alloy |
Useful links and guides ....
- To know more about this exacte bike, Specialized provided us with the latest version of its Hardrock 20 bike manual
- Find All parts, tires and accessories of Specialized Hardrock 20 Youth here
- Get your GT Stomper 20 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Stomper 20 Youth here
