GT MACH 1 JR. 2004 VS Diamondback REACTOR EXPERT 2008 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 NuttedFront: Steel |
| Rims manufacturer | 28-holeSteel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight GaugeSteel |
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 | Threaded1 (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 TeethSteel One-piece |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
GT Mach 1 Jr. Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownHi-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) DiameterChromoly |
Diamondback Reactor Expert
General Infos| Model | Reactor Expert |
| Manufacturer | Diamondback |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice | -Silver Metallic |
| Sizes | - 19.75 top tube (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 1.5 (inches) Kenda Small Block Eight |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro LeversTektro 930 Linear Brakes |
| Hubs for disc brakes | Rear: Aluminum CassetteFront: Sealed Bearing Alloy |
| Rims manufacturer | 32-holeSun CR-8 |
| 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 Riser |
| Handlebar extender | Optional |
| Handlebar stem details | DB Reactor |
| Headset size | 1 1/8 (inches) Threadless FSA |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches)KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Euro Power Spline |
| Crankset parts and sizes | 43 TeethFSA Newton |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Diamondback Reactor Expert Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownChromoly |
| Fork type | Diamondback |
Other Specs of Diamondback Reactor Expert
| Component group sets | BMX Mix |
| Pedals details | DB Sound Alloy With Replaceable Pins |
| Rear shock absorber | Not Available |
| Saddle seat | DB Race |
| Seat post extension | 27.2 (millimeters) DiameterAlloy Micro-adjust |
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 Expert manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Reactor Expert BMX here