GT MACH 1 JR. 2004 VS Diamondback REACTOR JR 2007 specs comparison
GT Mach 1 Jr.
General Infos| Model | Mach 1 Jr. |
| Manufacturer | GT |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
-Blue |
| Sizes |
- Junior |
| Sizes |
- Junior |
Wheels And Breaking System
| Bike front tire | 16 X 2.125 (inches) BMX Knobby |
| Bike rear tire | Not Available |
| Bike wheel size | 16 (inches) Wheels |
| Brakeset type | Coaster Brake Rear |
| Hubs for disc brakes | Rear: Steel Coaster Brake Nutted Front: Steel |
| Rims manufacturer | 28-hole Steel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | GT BMX |
| Handlebar extender | Not Available |
| Handlebar stem details | Aluminum |
| Headset size | Threaded 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC Z410 |
| Bottom bracket shell width | American |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 36 Teeth Steel One-piece |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Mach 1 Jr. Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | GT |
Other Specs of GT Mach 1 Jr.
| Component group sets | Not Available |
| Pedals details | BMX |
| Rear shock absorber | Not Available |
| Saddle seat | GT Jr. BMX |
| Seat post extension | 22.2 (millimeters) Diameter Chromoly |
Diamondback Reactor Jr
General Infos| Model | Reactor Jr |
| Manufacturer | Diamondback |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Black Metallic |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | 20 X 1 3/8 (inches) Tioga Comp III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro Levers Tektro Mini-linear Brakes |
| Hubs for disc brakes | Rear: Aluminum Shell Cassette Hollow 3/8 (inches) Axle Front: Aluminum Shell With Sealed Bearings |
| Rims manufacturer | 28-hole Sun ICI-1 |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight Gauge |
Frame and Body Specs
| Frame materials | 7005 Aluminum c |
| Frame type | TIG-welded |
| Handlebar construction | 6061 Aluminum c |
| Handlebar extender | Optional |
| Handlebar stem details | Jr BMX Race |
| Headset size | 1 (inches) Threadless FSA |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Tapered Square Axle Sealed Cartridge |
| Crankset parts and sizes | 40 Teeth 165 (millimeters) Forged Aluminum 3-piece |
| Gear shift levers | Not Available |
| Rear gear set | 15 Teeth 1-speed |
Diamondback Reactor Jr Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Diamondback |
Other Specs of Diamondback Reactor Jr
| Component group sets | BMX Mix |
| Pedals details | Alloy Body and Cage |
| Rear shock absorber | Not Available |
| Saddle seat | 1-piece Puny Race |
| Seat post extension | 27.2 (millimeters) Diameter 22.2 Alloy Integrated |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Mach 1 Jr. bike manual
- Find All parts, tires and accessories of GT Mach 1 Jr. BMX here
- Get your Diamondback Reactor Jr manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Reactor Jr BMX here