Pyramid BMX 20 1999 VS Zephyr ROCKET 1998 specs comparison
Pyramid BMX 20
General Infos| Model | BMX 20 |
| Manufacturer | Pyramid |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Chrome-Plated |
| Sizes |
- Boys 11 (inches) |
| Sizes |
- Boys 11 (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 1.75 (inches) Knobby |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Coaster Rear |
| Hubs for disc brakes | Rear: Coaster Brake Front: Jou Yu JY-443 |
| Rims manufacturer | 36-hole HJC P-GN Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Sha-Dar Stainless Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Steel BMX |
| Handlebar extender | Not Available |
| Handlebar stem details | Alloy |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | American 24tpi |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 Teeth 1-piece 6 1/2 (inches) |
| Gear shift levers | Not Available |
| Rear gear set | 18 Teeth 1-speed |
Pyramid BMX 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Oversize Unicrown Crown Hi-tensile Steel |
| Fork type | Not Available |
Other Specs of Pyramid BMX 20
| Component group sets | Not Available |
| Pedals details | CS-972N |
| Rear shock absorber | Not Available |
| Saddle seat | GS-383 |
| Seat post extension | 25.4 (millimeters) Diameter Steel |
Zephyr Rocket
General Infos| Model | Rocket |
| Manufacturer | Zephyr |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
- red -Black |
| Sizes |
- Boys |
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 (inches) Wheels |
| Brakeset type | Coaster Brake |
| Hubs for disc brakes | Rear: Coaster Brake With Training Wheels Nutted Front: Steel |
| Rims manufacturer | 20-hole Steel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Not Available |
| Handlebar extender | Not Available |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) |
| Bottom bracket shell width | American |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 36 Teeth 1-piece 4 1/2 (inches) |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Zephyr Rocket Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Zephyr |
Other Specs of Zephyr Rocket
| Component group sets | Not Available |
| Pedals details | Resin Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Zephyr |
| Seat post extension | Steel Pillar |
Useful links and guides ....
- To know more about this exacte bike, Pyramid provided us with the latest version of its BMX 20 bike manual
- Find All parts, tires and accessories of Pyramid BMX 20 Youth here
- Get your Zephyr Rocket manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Zephyr Rocket Youth here