GT SPEED SERIES JR. 1997 VS Diamondback OPTION 2009 specs comparison
GT Speed Series Jr.
General Infos| Model | Speed Series Jr. |
| Manufacturer | GT |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice |
-Ball burnished |
| Sizes |
- Boys |
| Sizes |
- Boys |
Wheels And Breaking System
| Bike front tire | 20 X 1 1/8 (inches) GT AA Pro Kevlar |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe Levers Dia-Compe Aluminum Side-pull Caliper Rear Brakes |
| Hubs for disc brakes | High-flange GT Mohawk |
| Rims manufacturer | 36-hole Araya |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | 6061 T6 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | GT Aluminum |
| Handlebar extender | Not Available |
| Handlebar stem details | GT Aluminum |
| Headset size | 1 (inches) Threadless Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC 410 |
| Bottom bracket shell width | 68 (millimeters) Threadless |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 44 Teeth 3-piece Aluminum |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Speed Series Jr. Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | GT |
Other Specs of GT Speed Series Jr.
| Component group sets | Not Available |
| Pedals details | GT Aluminum Platforms |
| Rear shock absorber | Not Available |
| Saddle seat | GT Plastic |
| Seat post extension | Aluminum |
Diamondback Option
General Infos| Model | Option |
| Manufacturer | Diamondback |
| Year of production | 2009 |
| Current price | Check price Here ==> |
| Color choice |
-Silver |
| Sizes |
- 19.5 TT (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 2.00 (inches) DB Cellblock |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 2 Finger Levers Tektro 907 U-brake Brakes |
| Hubs for disc brakes | Rear: Cassette Driver Front: Steel 14 (millimeters) Axle |
| Rims manufacturer | 48-hole Alloy |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Hi-Ten 2-piece |
| Handlebar extender | Optional |
| Handlebar stem details | Alloy 4-bolt |
| Headset size | 1 1/8 (inches) FSA Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Loose Ball Mid |
| Crankset parts and sizes | 28 Teeth 3-Piece Tubular Chromoly 175 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 10 Teeth 1-speed |
Diamondback Option Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown High-tensile Steel |
| Fork type | Not Available |
Other Specs of Diamondback Option
| Component group sets | BMX |
| Pedals details | DB Sound Alloy With Traction Pins |
| Rear shock absorber | Not Available |
| Saddle seat | DB Driver's Seat |
| Seat post extension | 25.4 (millimeters) Diameter Steel Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Speed Series Jr. bike manual
- Find All parts, tires and accessories of GT Speed Series Jr. BMX here
- Get your Diamondback Option manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Option BMX here