Diamondback REACTOR JR. 1997 VS GT MACH 1 JR. 2004 specs comparison

Diamondback Reactor Jr.
General InfosModel | Reactor Jr. |
Manufacturer | Diamondback |
Year of production | 1997 |
Current price | Check price Here ==> |
Color choice | -Brushed |
Sizes | - Boys 8.5 (inches) |
Sizes | - Boys 8.5 (inches) |
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 | Dia-Compe MX-101 LeversChang Star Brakes |
Hubs for disc brakes | NuttedKing Kong Aluminum |
Rims manufacturer | 32-holeAlex Aluminum |
Spoke nipples type | Brass Nipples |
Spoke wheel | 2.0 (millimeters) Straight GaugeChung Nan Stainless Steel |
Frame and Body Specs
Frame materials | 7005 aluminum c |
Frame type | TIG-welded |
Handlebar construction | Kalloy Aluminum |
Handlebar extender | Not Available |
Handlebar stem details | Hsin Lung |
Headset size | 1 (inches) YST |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches)KMC HP-20 |
Bottom bracket shell width | 68 (millimeters) Threadless |
Bottom bracket type | 117.5 (millimeters) SpindleYST BB 611 |
Crankset parts and sizes | 43 TeethDotek 3-piece |
Gear shift levers | Not Available |
Rear gear set | 16 Teeth1-speed |
Diamondback Reactor Jr. Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownChromoly |
Fork type | Akisu |
Other Specs of Diamondback Reactor Jr.
Component group sets | Not Available |
Pedals details | Aluminum |
Rear shock absorber | Not Available |
Saddle seat | Velo VL-208 |
Seat post extension | 22.2 (millimeters) DiameterAluminum |

GT Mach 1 Jr.
General InfosModel | Mach 1 Jr. |
Manufacturer | GT |
Year of production | 2004 |
Current price | Check price Here ==> |
Color choice | -Blue |
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 |
Useful links and guides ....
- To know more about this exacte bike, Diamondback provided us with the latest version of its Reactor Jr. bike manual
- Find All parts, tires and accessories of Diamondback Reactor Jr. BMX here
- Get your GT Mach 1 Jr. manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Mach 1 Jr. BMX here