Dirtmaster BIG BERTHA 1999 VS Schwinn POWERMATIC 2001 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 |
Schwinn Powermatic
General Infos| Model | Powermatic |
| Manufacturer | Schwinn |
| Year of production | 2001 |
| Current price | Check price Here ==> |
| Color choice |
- Chrome-Plated -Army Green |
| Sizes |
- Pro |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Schwinn XS Hucker Freestyle |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Aluminum U-brake Levers Aluminum U-brake Front and aluminum U Brake Rear Brakes |
| Hubs for disc brakes | Aluminum |
| Rims manufacturer | 48-hole Aluminum |
| Spoke nipples type | Not Available |
| Spoke wheel | 2.0 (millimeters) |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | Oversized and tapered 4-piece |
| Handlebar extender | Optional |
| Handlebar stem details | Aluminum Ahead Type |
| Headset size | 1 1/8 (inches) Threadless DIa-Compe SB-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Not Available |
| Crankset parts and sizes | 44 Teeth Schwinn Cromoly Hex-type |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Schwinn Powermatic Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | Schwinn |
Other Specs of Schwinn Powermatic
| Component group sets | Not Available |
| Pedals details | Schwinn XS Comp Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Schwinn Padded |
| Seat post extension | 26.6 (millimeters) Diameter Steel Micro-adjust |
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 Schwinn Powermatic manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Schwinn Powermatic Freestyle here