GT THUMPER 2004 VS Hoffman HOFFMAN 900 2001 specs comparison
GT Thumper
General Infos| Model | Thumper |
| Manufacturer | GT |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
-Blue |
| Sizes |
- One |
| Sizes |
- One |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 2.10 (inches) GT LP-4 Front: 20 X 2.20 (inches) GT 1453 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 273A Rear Levers Tektro FX-11 U-brake Rear Brakes |
| Hubs for disc brakes | 14 (millimeters) Axle Aluminum |
| Rims manufacturer | 36-hole Alex DX-2418 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | GT BMX |
| Handlebar extender | Not Available |
| Handlebar stem details | GT Piston |
| Headset size | 1 1/8 (inches) Threadless Tien Hsin With SST Oryg |
Gearing Specifications
| Bicycle chain | 1/2 X 3/16 (inches) KMC Z510H |
| Bottom bracket shell width | American |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 39 Teeth GT 3-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 14 Teeth 1-speed |
GT Thumper Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | GT |
Other Specs of GT Thumper
| Component group sets | Not Available |
| Pedals details | GT BMX Design Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | GT Launch Pad |
| Seat post extension | Steel Micro-adjust |
Hoffman Hoffman 900
General Infos| Model | Hoffman 900 |
| Manufacturer | Hoffman |
| Year of production | 2001 |
| Current price | Check price Here ==> |
| Color choice |
- Blue - Orange -Black |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Hoffman Bikes Skidmarks |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe MX-101 Levers Tektro 906A U-brake Brakes |
| Hubs for disc brakes | Keyin Aluminum |
| Rims manufacturer | 48-hole Rear: Jalco 48 JL-DDF Front: Jalco 48 JL-DDF |
| Spoke nipples type | Aluminum Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Chromoly Main Triangle and hi-tensile Steel Rear Stays |
| Frame type | TIG-welded |
| Handlebar construction | Hoffman Bikes Prodigy Bar |
| Handlebar extender | Optional |
| Handlebar stem details | HoffmanBikes SuperStem |
| Headset size | 1 1/8 (inches) Threadless YST |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 Teeth 1-piece Chromoly 175 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Hoffman Hoffman 900 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | 4130 chromoly c |
| Fork type | Hoffman Bikes Prodigy Forks |
Other Specs of Hoffman Hoffman 900
| Component group sets | Not Available |
| Pedals details | Wellgo LU-313 |
| Rear shock absorber | Not Available |
| Saddle seat | Hoffman Bikes Flame Seat |
| Seat post extension | 25.4 (millimeters) Diameter Hoffman Bikes Prodigy Post |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Thumper bike manual
- Find All parts, tires and accessories of GT Thumper Freestyle here
- Get your Hoffman Hoffman 900 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Hoffman Hoffman 900 Freestyle here
