GT MACH ONE JR. 2009 VS DK PROMOTION 1998 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 |
DK Promotion
General Infos| Model | Promotion |
| Manufacturer | DK |
| Year of production | 1998 |
| Current price | Check price Here ==> |
| Color choice |
- blue - chrome-plated - red - yellow -Black |
| Sizes |
- Pro - Pro XL - Pro XXL |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Tioga Comp III Front: 20 X 2.125 (inches) Tioga Comp III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Shimano DX BMX Levers Shimano DX BMX V-brake Brakes |
| Hubs for disc brakes | DK Sealed |
| Rims manufacturer | 36-hole Sun Rims Rhyno Lite |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Asahi Steel |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | DK Pro |
| Handlebar extender | Not Available |
| Handlebar stem details | DK XL |
| Headset size | 1 1/8 (inches) Threadless Aheadset |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | American 24tpi |
| Bottom bracket type | Victor VPB-35 |
| Crankset parts and sizes | 44 Teeth 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
DK Promotion Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | DK |
Other Specs of DK Promotion
| Component group sets | Not Available |
| Pedals details | DK Aluminum Platforms |
| Rear shock absorber | Not Available |
| Saddle seat | DK Pro |
| Seat post extension | 26.8 (millimeters) Diameter DK Micro-adjust |
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 DK Promotion manual book version yo know further about this bike
- Saddles, tires And mechanical parts for DK Promotion BMX here