GT SPEED SERIES JR. 1999 VS Fit Bike Co. PRK 2 2009 specs comparison
GT Speed Series JR.
General InfosModel | Speed Series JR. |
Manufacturer | GT |
Year of production | 1999 |
Current price | Check price Here ==> |
Color choice | -Ball-Burnished |
Sizes | - Mini |
Sizes | - Mini |
Wheels And Breaking System
Bike front tire | 20 X 1 1/8 (inches) GT AA Pro |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Tektro Alloy Linear-pull Rear LeversTektro Linear-pull Rear Brakes |
Hubs for disc brakes | GT Mohawk |
Rims manufacturer | 28-holeWeinmann Mini Zac |
Spoke nipples type | Brass Nipples |
Spoke wheel | 1.8 (millimeters) Straight GaugeWheelsmith Stainless Steel |
Frame and Body Specs
Frame materials | 6061 T6 Aluminum |
Frame type | Welded |
Handlebar construction | GT Jr Aluminum |
Handlebar extender | Not Available |
Handlebar stem details | GT Mini Piston |
Headset size | 1 (inches) Threadless Aheadset AL |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches) |
Bottom bracket shell width | Not Available |
Bottom bracket type | Cartridge |
Crankset parts and sizes | 42 TeethGT 3-piece Aluminum |
Gear shift levers | Not Available |
Rear gear set | 16 Teeth1-speed |
GT Speed Series JR. Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownReynolds 531 |
Fork type | GT |
Other Specs of GT Speed Series JR.
Component group sets | Not Available |
Pedals details | Victor VP-104 Clipless |
Rear shock absorber | Not Available |
Saddle seat | Uni Mini |
Seat post extension | Aluminum |

Fit Bike Co. PRK 2
General InfosModel | PRK 2 |
Manufacturer | Fit Bike Co. |
Year of production | 2009 |
Current price | Check price Here ==> |
Color choice | - Bright Blue-Clear |
Sizes | - Not available |
Wheels And Breaking System
Bike front tire | Rear: 20 X 1.95 (inches) FitFront: 20 X 2.10 (inches) Fit |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Tektro Rear LeversTektro U-brake Rear Brakes |
Hubs for disc brakes | Rear: Alloy Sealed Cassette 14 (millimeters) AxleFront: Alloy Sealed 14 (millimeters) Axle |
Rims manufacturer | 36-holeAlienation PBR Blue ANO and Black |
Spoke nipples type | Brass Nipples |
Spoke wheel | 14ga. |
Frame and Body Specs
Frame materials | 4130 Chromoly and 1020 Hi Ten |
Frame type | TIG-welded |
Handlebar construction | Fit 7.75 Bar |
Handlebar extender | Optional |
Handlebar stem details | Front Load Alloy |
Headset size | 1 1/8 (inches) Threadless FSA Impact |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches)KMC Z410 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Sealed Bearing Mid BB |
Crankset parts and sizes | 25 Teeth3-Piece Tubular Chromoly 175 (millimeters) |
Gear shift levers | Not Available |
Rear gear set | 9 Teeth1-speed |
Fit Bike Co. PRK 2 Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown Crown4130 Chromoly |
Fork type | Fit Bike Co. |
Other Specs of Fit Bike Co. PRK 2
Component group sets | BMX |
Pedals details | Alloy Platform |
Rear shock absorber | Not Available |
Saddle seat | Short Jump |
Seat post extension | 25.4 (millimeters) DiameterSteel 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 Fit Bike Co. PRK 2 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Fit Bike Co. PRK 2 BMX here