Dirtmaster JUMP 1999 VS GT THUMPER 2001 specs comparison
Dirtmaster Jump
General Infos| Model | Jump |
| Manufacturer | Dirtmaster |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
- Green -Chrome-Plated |
| Sizes |
- Pro |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | 20 X 2.25 (inches) Cheng Shin M-110 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro RBP-341A Rear Levers Tektro 910A Rear Brakes |
| Hubs for disc brakes | Formula OV 31 |
| Rims manufacturer | 48-hole Alex X-303 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Da-Sen Steel |
Frame and Body Specs
| Frame materials | 4130 chromoly c |
| Frame type | TIG-welded |
| Handlebar construction | SE Racing Rollbar |
| Handlebar extender | Not Available |
| Handlebar stem details | Kalloy MX-817 |
| Headset size | 1 1/8 (inches) Threadless Tioga TG |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | American 24tpi |
| Bottom bracket type | YST BB 621 |
| Crankset parts and sizes | 44 Teeth 1-piece Chromoly 180 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Dirtmaster Jump Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | Dirtmaster Dirt Fork |
Other Specs of Dirtmaster Jump
| Component group sets | Not Available |
| Pedals details | Wellgo LU-313 |
| Rear shock absorber | Not Available |
| Saddle seat | Team Products Embroidered |
| Seat post extension | 25.4 (millimeters) Diameter Steel Micro-adjust |
GT Thumper
General Infos| Model | Thumper |
| Manufacturer | GT |
| Year of production | 2001 |
| Current price | Check price Here ==> |
| Color choice |
- Starlight Blue -Martian Green |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | 20 X 2.10 (inches) GT LP-III |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Tektro 270-AX Rear Levers Tektro FX-20 U Brake Rear Brakes |
| Hubs for disc brakes | GT Mohawk |
| Rims manufacturer | 48-hole Alex AL-MX22 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14g |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | GT F.U.B.A.R. |
| Handlebar extender | Optional |
| Handlebar stem details | GT Johnson |
| Headset size | 1 1/8 (inches) Threadless Tange Seiki STE |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Sealed Cartridge |
| Crankset parts and sizes | 44 Teeth GT 3-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 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 Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT |
| Seat post extension | GT Aluminum Micro-adjust |
Related Bike comparison
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Useful links and guides ....
- To know more about this exacte bike, Dirtmaster provided us with the latest version of its Jump bike manual
- Find All parts, tires and accessories of Dirtmaster Jump Freestyle here
- Get your GT Thumper manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Thumper Freestyle here