Specialized HARDROCK 20 1997 VS Diamondback MINI VIPER 2004 specs comparison

Specialized Hardrock 20
General InfosModel | 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 |

Diamondback Mini Viper
General InfosModel | Mini Viper |
Manufacturer | Diamondback |
Year of production | 2004 |
Current price | Check price Here ==> |
Color choice |
- Chrome -10-40 Red |
Sizes |
- 16 (inches) |
Wheels And Breaking System
Bike front tire | 16 X 2.125 (inches) DB BMX |
Bike rear tire | Not Available |
Bike wheel size | 16 (inches) Wheels |
Brakeset type | Coaster Brake Rear |
Hubs for disc brakes | Rear: Steel Coaster Brake Nutted Front: Steel |
Rims manufacturer | 28-hole Aluminum |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. Straight Gauge UCP |
Frame and Body Specs
Frame materials | Hi-tensile Steel |
Frame type | TIG-welded |
Handlebar construction | BMX Style With Crossbar |
Handlebar extender | Not Available |
Handlebar stem details | BMX 2-Bolt |
Headset size | 1 (inches) Steel |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches) KMC |
Bottom bracket shell width | Not Available |
Bottom bracket type | One Piece |
Crankset parts and sizes | OPC With Chainguard |
Gear shift levers | Not Available |
Rear gear set | 18 Teeth 1-speed |
Diamondback Mini Viper Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown Crown Hi-tensile Steel |
Fork type | Diamondback |
Other Specs of Diamondback Mini Viper
Component group sets | Not Available |
Pedals details | BMX Style Resin |
Rear shock absorber | Not Available |
Saddle seat | Diamondback BMX Padded |
Seat post extension | Steel Pillar |
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 Diamondback Mini Viper manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Mini Viper Youth here