Dirtmaster JUMP 1999 VS GT BUMP 2004 specs comparison
Dirtmaster Jump
General InfosModel | 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 Bump 2004 comparison online with competitors](https://yobicycle.com/images/models/GT-Bump-2004-specs.jpg)
GT Bump
General InfosModel | Bump |
Manufacturer | GT |
Year of production | 2004 |
Current price | Check price Here ==> |
Color choice |
- Silver -Red |
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 274A Rear Levers Tektro 907A U-brake Rear Brakes |
Hubs for disc brakes | 14 (millimeters) Axle Aluminum |
Rims manufacturer | 36-hole Alex G22 |
Spoke nipples type | Brass Nipples |
Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
Frame materials | Chromoly Main Triangle and hi-tensile Steel Rear Stays |
Frame type | TIG-welded |
Handlebar construction | GT BMX |
Handlebar extender | Not Available |
Handlebar stem details | GT Piston |
Headset size | 1 1/8 (inches) Threadless Victor VP-A74F |
Gearing Specifications
Bicycle chain | 1/2 X 3/16 (inches) KMC 410 |
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 Bump Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown Crown Chromoly |
Fork type | GT |
Other Specs of GT Bump
Component group sets | Not Available |
Pedals details | GT Johnson Design |
Rear shock absorber | Not Available |
Saddle seat | 9 (millimeters) Rails GT Jr Jump |
Seat post extension | Steel Micro-adjust |
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 Bump manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT Bump Freestyle here