Dirtmaster JUMP 1999 VS Redline RL 640 1998 specs comparison
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➜ Dirtmaster Jump price
➜ Redline RL 640 price
Dirtmaster Jump
General Infos| Model | Jump |
| Manufacturer | Dirtmaster |
| Year of production | 1999 |
| Current price | 🛒 View Price → |
| 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 LeversTektro 910A Rear Brakes |
| Hubs for disc brakes | Formula OV 31 |
| Rims manufacturer | 48-holeAlex X-303 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight GaugeDa-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 Teeth1-piece Chromoly 180 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Dirtmaster Jump Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown4130 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) DiameterSteel Micro-adjust |
Redline RL 640
General Infos| Model | RL 640 |
| Manufacturer | Redline |
| Year of production | 1998 |
| Current price | 🛒 View Price → |
| Color choice | -Chrome-plated |
| Sizes | - Freestyle |
Wheels And Breaking System
| Bike front tire | 20 X 2.125 (inches) RL Freaky-V |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe MX-99 LeversDia-Compe 990 Brakes |
| Hubs for disc brakes | Redline Flight Group |
| Rims manufacturer | 48-holeAluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight GaugeSteel |
Frame and Body Specs
| Frame materials | OversizedChromoly |
| Frame type | TIG-welded |
| Handlebar construction | Redline Freestyle |
| Handlebar extender | Not Available |
| Handlebar stem details | RL Flight Group XL |
| Headset size | 1 1/8 (inches) Threadless Aluminum With SST Oryg Detangler |
Gearing Specifications
| Bicycle chain | 1/2 X 3/32 (inches) |
| Bottom bracket shell width | American |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 43 TeethRedline Big Block |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth1-speed |
Redline RL 640 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown CrownChromoly |
| Fork type | Redline |
Other Specs of Redline RL 640
| Component group sets | Not Available |
| Pedals details | Redline Aluminum |
| Rear shock absorber | Not Available |
| Saddle seat | RL Ha (millimeters)erhead Freestyle |
| Seat post extension | RL Ha (millimeters)erhead |
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 Redline RL 640 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Redline RL 640 Freestyle here