Specialized HARDROCK 20 1997 VS Nirve THRUST 12 2003 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 LeversAluminum Cantilever Brakes |
| Hubs for disc brakes | NuttedSteel |
| Rims manufacturer | 36-holeAluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight GaugeSteel |
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 Teeth1-piece Steel |
| Gear shift levers | Grip Shift MRX-170 |
| Rear gear set | 14 - 28 Teeth6-speed |
Specialized Hardrock 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Shimano Tourney TY-22 |
| Fork material | Unicrown CrownHi-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 SteelPillar |
Nirve Thrust 12
General Infos| Model | Thrust 12 |
| Manufacturer | Nirve |
| Year of production | 2003 |
| Current price | Check price Here ==> |
| Color choice | -Blue |
| Sizes | - Not available |
Wheels And Breaking System
| Bike front tire | 12-1/2 X 2-1/4 (inches) Comp III Style |
| Bike rear tire | Not Available |
| Bike wheel size | 12-1/2 (inches) Wheels |
| Brakeset type | Coaster Brake Rear |
| Hubs for disc brakes | Rear: Shimano Coaster Brake NuttedFront: Steel |
| Rims manufacturer | 16-holeSteel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 16-hole Straight GaugeUCP |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Hi-tensile Steel |
| Handlebar extender | Not Available |
| Handlebar stem details | Aluminum |
| Headset size | Threaded1 (inches) Threaded Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches)KMC Z-410 |
| Bottom bracket shell width | 68 (millimeters) American |
| Bottom bracket type | Loose Ball |
| Crankset parts and sizes | 28 TeethSteel One-piece |
| Gear shift levers | Not Available |
| Rear gear set | 1-speed |
Nirve Thrust 12 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownHi-tensile Steel |
| Fork type | Nirve |
Other Specs of Nirve Thrust 12
| Component group sets | Not Available |
| Pedals details | Nylon Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Nirve Padded |
| Seat post extension | 22.2 (millimeters) Diameter SteelPillar |
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 Nirve Thrust 12 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Nirve Thrust 12 Youth here