GT SPEED SERIES JR. 1997 VS Diamondback RM20 2002 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 RM20
General Infos| Model | RM20 |
| Manufacturer | Diamondback |
| Year of production | 2002 |
| Current price | Check price Here ==> |
| Color choice |
-Red and White |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Tioga Comp III Front: 20 X 2.125 (inches) Tioga Comp III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro Sabre Rear Levers Tektro BX-20 Linear-pull Rear Brakes |
| Hubs for disc brakes | Aluminum |
| Rims manufacturer | 36-hole Alex Supra B Pro |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | 7005 aluminum c |
| Frame type | TIG-welded |
| Handlebar construction | Chromoly BMX |
| Handlebar extender | Not Available |
| Handlebar stem details | Aluminum |
| Headset size | 1 1/8 (inches) Threadless Aluminum |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) KMC HP20NP |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | AC Euro Sealed Bearing |
| Crankset parts and sizes | 44 Teeth AC Race 16 3pc |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Diamondback RM20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Not Available |
Other Specs of Diamondback RM20
| Component group sets | Not Available |
| Pedals details | Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | Diamondback BMX |
| Seat post extension | 27.0 (millimeters) Diameter Aluminum |
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 RM20 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback RM20 BMX here