GT SPEED SERIES JR. 1999 VS Redline ROAM 2011 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 |

Redline Roam
General InfosModel | Roam |
Manufacturer | Redline |
Year of production | 2011 |
Current price | Check price Here ==> |
Color choice | - Blue- Orange-Black |
Sizes | - Standard size for all |
Wheels And Breaking System
Bike front tire | Rear: 20 X 1.75 (inches) Kenda KontactFront: 20 X 1.95 Kenda Kontact |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Unavailable Front and Promax SBL-317C Rear LeversUnavailable Front and ProMax SBV-295C V-Type Rear Brakes |
Hubs for disc brakes | Redline |
Rims manufacturer | 36-holeAlex Z1000 |
Spoke nipples type | Not Available |
Spoke wheel | Not Available |
Frame and Body Specs
Frame materials | Hi Ten |
Frame type | Brazed and welded |
Handlebar construction | Redline 26 X 6.5 Hi Ten |
Handlebar extender | Optional |
Handlebar stem details | Redline 55 (millimeters) |
Headset size | 1 1/8 (inches) VP Threadless |
Gearing Specifications
Bicycle chain | KMC Z-410 |
Bottom bracket shell width | Not Available |
Bottom bracket type | VP OPC |
Crankset parts and sizes | Redline 42t TeethRedline OPC 175 (millimeters) |
Gear shift levers | Not Available |
Rear gear set | 16 Teeth1-speed |
Redline Roam Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownHi Ten |
Fork type | Redline Standard |
Other Specs of Redline Roam
Component group sets | BMX Mix |
Pedals details | Redline PC Platform |
Rear shock absorber | Not Available |
Saddle seat | Redline MX |
Seat post extension | 25.4 (millimeters) DiameterSteel |
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 Redline Roam manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Redline Roam BMX here