GT MACH ONE JR. 2009 VS GT ZONE 2007 specs comparison
GT Mach One Jr.
General InfosModel | 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 BrakeFront: Steel |
Rims manufacturer | 28-holeAlloy |
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 TeethForged One-piece |
Gear shift levers | Not Available |
Rear gear set | 16 Teeth1-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) DiameterSteel |

GT Zone
General InfosModel | Zone |
Manufacturer | GT |
Year of production | 2007 |
Current price | Check price Here ==> |
Color choice | - Chrome Plate-Brilliant Gold Metallic |
Sizes | - 20 wheel (inches) |
Wheels And Breaking System
Bike front tire | 20 X 2.10 (inches) Kenda Kiniption |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Tektro 319A LeversTektro FX-330 Brakes |
Hubs for disc brakes | Steel |
Rims manufacturer | 48-holeJalco Aluminum |
Spoke nipples type | Brass Nipples |
Spoke wheel | 14ga. Straight Gauge |
Frame and Body Specs
Frame materials | Chromoly |
Frame type | TIG-welded |
Handlebar construction | GT Dirt and street Hi-Ten |
Handlebar extender | Optional |
Handlebar stem details | GT FS Design |
Headset size | Steel1 1/8 (inches) Threadless TH |
Gearing Specifications
Bicycle chain | KMC Z410 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Ball TypeSteel |
Crankset parts and sizes | Forged 3pc. |
Gear shift levers | Not Available |
Rear gear set | 16 Teeth1-speed |
GT Zone Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownSteel |
Fork type | GT Freestyle |
Other Specs of GT Zone
Component group sets | BMX Mix |
Pedals details | BMX Platform |
Rear shock absorber | Not Available |
Saddle seat | GT Jr. Jump |
Seat post extension | Steel |
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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 GT Zone manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Zone BMX here