Dirtmaster BIG BERTHA 2001 VS Schwinn AUTOMATIC TJ LAVIN PRO 2004 specs comparison
Dirtmaster Big Bertha
General InfosModel | Big Bertha |
Manufacturer | Dirtmaster |
Year of production | 2001 |
Current price | Check price Here ==> |
Color choice | - Green-Black |
Sizes | - Pro |
Sizes | - Pro |
Wheels And Breaking System
Bike front tire | 24 X 1.95 (inches) Radix |
Bike rear tire | Not Available |
Bike wheel size | 24 (inches) Wheels |
Brakeset type | Dia-Compe Tech 99 Rear LeversDia-Compe 990 Rear Brakes |
Hubs for disc brakes | Radix |
Rims manufacturer | 48-holeAlex Aluminum |
Spoke nipples type | Brass Nipples |
Spoke wheel | 2.0 (millimeters) Straight GaugeChung Nan Stainless Steel |
Frame and Body Specs
Frame materials | Chromoly |
Frame type | TIG-welded |
Handlebar construction | DirtMaster Monkey Bar |
Handlebar extender | Not Available |
Handlebar stem details | Radix |
Headset size | 1 1/8 (inches) Threadless Aheadset-Tank |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches)KMC Z410 |
Bottom bracket shell width | American |
Bottom bracket type | SealedThree Piece |
Crankset parts and sizes | 40 Teeth3-piece Aluminum and chromoly |
Gear shift levers | Not Available |
Rear gear set | 18 Teeth1-speed |
Dirtmaster Big Bertha Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownChromoly |
Fork type | DirtMaster |
Other Specs of Dirtmaster Big Bertha
Component group sets | Not Available |
Pedals details | Radix |
Rear shock absorber | Not Available |
Saddle seat | Radix |
Seat post extension | 25.4 (millimeters) DiameterRadix |

Schwinn Automatic TJ Lavin Pro
General InfosModel | Automatic TJ Lavin Pro |
Manufacturer | Schwinn |
Year of production | 2004 |
Current price | Check price Here ==> |
Color choice | -Green |
Sizes | - Pro |
Wheels And Breaking System
Bike front tire | Rear: 20 X 1.95 Duro Basket CaseFront: 20 X 2.10 (inches) Duro Jumper |
Bike rear tire | Not Available |
Bike wheel size | 20 (inches) Wheels |
Brakeset type | Tektro Rear LeversTektro Alloy U-brake Rear Brakes |
Hubs for disc brakes | 14 (millimeters) AxleAluminum |
Rims manufacturer | 48-holeJalco BX-326 |
Spoke nipples type | Brass Nipples |
Spoke wheel | 14ga. Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | Chromoly |
Frame type | TIG-welded |
Handlebar construction | Chromoly BMX |
Handlebar extender | Not Available |
Handlebar stem details | Aluminum Threadless |
Headset size | 1 1/8 (inches) Threadless Tange-Seiki Fatty MX |
Gearing Specifications
Bicycle chain | 1/2 X 1/8 (inches)KMC |
Bottom bracket shell width | Not Available |
Bottom bracket type | Not Available |
Crankset parts and sizes | 39 TeethChromoly Three-piece |
Gear shift levers | Not Available |
Rear gear set | 14 Teeth1-speed |
Schwinn Automatic TJ Lavin Pro Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Not Available |
Fork material | Unicrown CrownChromoly |
Fork type | Schwinn |
Other Specs of Schwinn Automatic TJ Lavin Pro
Component group sets | Not Available |
Pedals details | Die Cast Alloy |
Rear shock absorber | Not Available |
Saddle seat | 8 (millimeters) RailsPadded Freestyle |
Seat post extension | 25.4 (millimeters) Diameter |
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 Automatic TJ Lavin Pro manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Schwinn Automatic TJ Lavin Pro Freestyle here