Trek TR-30 JUMPING 1999 VS GT EL CENTRO 2007 specs comparison
Trek TR-30 Jumping
General Infos| Model | TR-30 Jumping |
| Manufacturer | Trek |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
-Tidal Blue and Sky Blue |
| Sizes |
- Pro |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Bontrager Revolt ST-2 Front: 20 X 2.10 (inches) Bontrager Revolt ST-2 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Chang Star 281DT Levers Dia-Compe 990 Brakes |
| Hubs for disc brakes | Kung Ten Aluminum |
| Rims manufacturer | 48-hole Bontrager Mack |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Chromoly |
| Handlebar extender | Not Available |
| Handlebar stem details | Alloy Ahead Type |
| Headset size | 1 1/8 (inches) Threadless Aheadset SE-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) Taya TB-410 |
| Bottom bracket shell width | American |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 1-piece Steel |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Trek TR-30 Jumping Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Chromoly |
| Fork type | Trek |
Other Specs of Trek TR-30 Jumping
| Component group sets | Not Available |
| Pedals details | Alloy Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Bontrager FS Plus 10 |
| Seat post extension | 25.4 (millimeters) Diameter Alloy |
GT El Centro
General Infos| Model | El Centro |
| Manufacturer | GT |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Matte Black |
| Sizes |
- 20 wheel (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.10 (inches) Kenda Kiniption |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Tektro 273A Levers Tektro FX-330 Brakes |
| Hubs for disc brakes | Rear: GT Sealed Cassette Front: GT Aluminum Sealed |
| Rims manufacturer | 48-hole Alex DX-2418 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | GT Dirt and street Cr-mo |
| Handlebar extender | Optional |
| Handlebar stem details | GT FS Design |
| Headset size | 1 1/8 (inches) Threadless Tange Seiki FATTY 22 |
Gearing Specifications
| Bicycle chain | KMC 410H |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Ball Type With 8 Spline Cr-Mo Axle |
| Crankset parts and sizes | 33 Teeth GT Tubular Cr-Mo 3pc. |
| Gear shift levers | Not Available |
| Rear gear set | 12 Teeth 1-speed |
GT El Centro Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | '05 GT Freestyle |
Other Specs of GT El Centro
| Component group sets | BMX Mix |
| Pedals details | Aluminum Body Cr-mo Alxe '05 GT Dirt and Street Platform Design |
| Rear shock absorber | Not Available |
| Saddle seat | GT Star 19 |
| Seat post extension | Alloy Micro Adjust |
Useful links and guides ....
- To know more about this exacte bike, Trek provided us with the latest version of its TR-30 Jumping bike manual
- Find All parts, tires and accessories of Trek TR-30 Jumping Freestyle here
- Get your GT El Centro manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT El Centro Freestyle here