GT MACH ONE JR. 2009 VS Specialized P.20 GROM 2014 specs comparison
GT Mach One Jr.
General Infos| Model | Mach One Jr. |
| Manufacturer | GT |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Black |
| Sizes |
- Not available |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | 16 X 2.125 (inches) GT Wing Design |
| Bike rear tire | Not Available |
| Bike wheel size | 16 (inches) Wheels |
| Brakeset type | Coaster Brake Rear |
| Hubs for disc brakes | Rear: Coaster Brake Front: Steel |
| Rims manufacturer | 28-hole Alloy |
| Spoke nipples type | Brass |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | Not Available |
| Frame type | TIG-welded |
| Handlebar construction | GT BMX Hi-ten |
| Handlebar extender | Optional |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Steel |
| Crankset parts and sizes | 32 Teeth Forged One-piece |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Mach One Jr. Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown |
| Fork type | GT BMX |
Other Specs of GT Mach One Jr.
| Component group sets | BMX |
| Pedals details | Jr Resin Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT Jr. BMX |
| Seat post extension | 25.4 (millimeters) Diameter Steel |
Specialized P.20 Grom
General Infos| Model | P.20 Grom |
| Manufacturer | Specialized |
| Year of production | 2014 |
| Current price | Check price Here ==> |
| Color choice |
-Red and White and Black |
| Sizes |
- 18.5 TT (inches) |
Wheels And Breaking System
| Bike front tire | Rhythm Lite 20x2.0 |
| Bike rear tire | Not Available |
| Bike wheel size | Not Available |
| Brakeset type | U-Brake |
| Hubs for disc brakes | Not Available |
| Rims manufacturer | Unavailable Wheelset |
| Spoke nipples type | Not Available |
| Spoke wheel | Not Available |
Frame and Body Specs
| Frame materials | High-tensile Steel |
| Frame type | Not Available |
| Handlebar construction | Specialized P.Series |
| Handlebar extender | Not Available |
| Handlebar stem details | Alloy |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | KMC HV410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | 8-Spline |
| Crankset parts and sizes | 3-Piece 30t |
| Gear shift levers | Unavailable Shifters |
| Rear gear set | 1x1 Speeds |
Specialized P.20 Grom Fork System Data
| Derailleur (Front) | Unavailable Front Derailleur |
| Derailleur (Rear) | Unavailable Rear Derailleur |
| Fork material | Not Available |
| Fork type | Hi-Ten Steel |
Other Specs of Specialized P.20 Grom
| Component group sets | Not Available |
| Pedals details | Nylon Platform |
| Rear shock absorber | Unavailable Rear Shock |
| Saddle seat | P.Seat SL |
| Seat post extension | Alloy |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Mach One Jr. bike manual
- Find All parts, tires and accessories of GT Mach One Jr. BMX here
- Get your Specialized P.20 Grom manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized P.20 Grom BMX here