GT MACH ONE JR. 2008 VS DK REACTION 2009 specs comparison
GT Mach One Jr.
General Infos| Model | Mach One Jr. |
| Manufacturer | GT |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
-Blue |
| Sizes |
- Standard size for everyone |
| Sizes |
- Standard size for everyone |
Wheels And Breaking System
| Bike front tire | 16 X 2.125 (inches) |
| Bike rear tire | Not Available |
| Bike wheel size | 16 (inches) Wheels |
| Brakeset type | Unavailable Front and Coaster Rear |
| Hubs for disc brakes | Rear: Steel Coaster 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 |
| Handlebar extender | Optional |
| Handlebar stem details | Steel |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | KMC Z-410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Ball Type Steel |
| Crankset parts and sizes | GT Forged Steel 1pc. |
| Gear shift levers | Not Available |
| Rear gear set | 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 | Resin Jr. BMX Design |
| Rear shock absorber | Not Available |
| Saddle seat | GT Jr. BMX |
| Seat post extension | Steel |
DK Reaction
General Infos| Model | Reaction |
| Manufacturer | DK |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
- Black Metallic - Sky Blue -Matte Copper |
| Sizes |
- 19.5 TT (inches) |
Wheels And Breaking System
| Bike front tire | 20 (inches) Kenda |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Unavailable Rear Levers Tektro Alloy U-brake Rear Brakes |
| Hubs for disc brakes | Rear: DK 14 (millimeters) Axle Front: DK 3/8 (inches) Axle |
| Rims manufacturer | 36-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Stainless |
Frame and Body Specs
| Frame materials | Not Available |
| Frame type | TIG-welded |
| Handlebar construction | DK 2 Piece 7.3 (inches) |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy Top Clamp |
| Headset size | 1 1/8 (inches) Threadless |
Gearing Specifications
| Bicycle chain | KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Mid BB |
| Crankset parts and sizes | 39 Teeth 3 Piece Tubular Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 14 Teeth 1-speed |
DK Reaction Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | Not Available |
Other Specs of DK Reaction
| Component group sets | BMX |
| Pedals details | Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | DK Slim With 7 (millimeters) Rail |
| Seat post extension | 25.4 (millimeters) Diameter 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 DK Reaction manual book version yo know further about this bike
- Saddles, tires And mechanical parts for DK Reaction BMX here