Dirtmaster BIG BERTHA 1999 VS Dyno COMPE 1996 specs comparison
Dirtmaster Big Bertha
General Infos| Model | Big Bertha |
| Manufacturer | Dirtmaster |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
- Chrome-Plated - Red - Yellow -Black |
| Sizes |
- Pro XL |
| Sizes |
- Pro XL |
Wheels And Breaking System
| Bike front tire | 20 X 2.25 (inches) Kenda K-841 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe Tech 99 Levers Dia-Compe 990 Brakes |
| Hubs for disc brakes | Joy Tech Jy A085SBT |
| Rims manufacturer | 48-hole Alex Supra |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Da-Sen Stainless Steel |
Frame and Body Specs
| Frame materials | 4130 chromoly c |
| Frame type | TIG-welded |
| Handlebar construction | Dirtmaster Hoochie |
| Handlebar extender | Not Available |
| Handlebar stem details | Odyssey Bang |
| Headset size | 1 1/8 (inches) Threadless Aheadset SE-1 F and S With Odyssey Gyro Detangler |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410H |
| 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 Big Bertha Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown 4130 Chromoly |
| Fork type | Dirtmaster Street Fork |
Other Specs of Dirtmaster Big Bertha
| Component group sets | Not Available |
| Pedals details | Wellgo LU-313U |
| Rear shock absorber | Not Available |
| Saddle seat | Team Products Embroidered |
| Seat post extension | 25.4 (millimeters) Diameter Primo Rod |
Dyno Compe
General Infos| Model | Compe |
| Manufacturer | Dyno |
| Year of production | 1996 |
| Current price | Check price Here ==> |
| Color choice |
- chrome-plated - green -Black |
| Sizes |
- Boys |
Wheels And Breaking System
| Bike front tire | 20 X 1.75 (inches) GT Skinwall |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Chang Star 257A Levers Dia-Compe Bulldog Brakes |
| Hubs for disc brakes | Not Available |
| Rims manufacturer | 48-hole Weinmann 4019 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Chromoly and hi-tensile Steel |
| Frame type | TIG-welded Steel |
| Handlebar construction | Dyno Freestyle |
| Handlebar extender | Not Available |
| Handlebar stem details | Dyno Freestyle |
| Headset size | 1 (inches) Steel |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | 68 (millimeters) Threadless |
| Bottom bracket type | GT |
| Crankset parts and sizes | 43 Teeth GT Power Series 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Dyno Compe Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Dyno |
Other Specs of Dyno Compe
| Component group sets | Not Available |
| Pedals details | GT Nylon Platforms |
| Rear shock absorber | Not Available |
| Saddle seat | Dyno Freestyle |
| Seat post extension | 22.2 (millimeters) Diameter Dyno Drainpipe |
Useful links and guides ....
- To know more about this exacte bike, Dirtmaster provided us with the latest version of its Big Bertha bike manual
- Find All parts, tires and accessories of Dirtmaster Big Bertha Freestyle here
- Get your Dyno Compe manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Dyno Compe Freestyle here