Dirtmaster BIG BERTHA 2001 VS Eastern Bikes PROTON SHOVELHEAD 2004 specs comparison
Dirtmaster Big Bertha
General Infos| Model | 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 Levers Dia-Compe 990 Rear Brakes |
| Hubs for disc brakes | Radix |
| Rims manufacturer | 48-hole Alex Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Chung 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 | Sealed Three Piece |
| Crankset parts and sizes | 40 Teeth 3-piece Aluminum and chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 18 Teeth 1-speed |
Dirtmaster Big Bertha Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| 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) Diameter Radix |
Eastern Bikes Proton Shovelhead
General Infos| Model | Proton Shovelhead |
| Manufacturer | Eastern Bikes |
| Year of production | 2004 |
| Current price | Check price Here ==> |
| Color choice |
- Gray -Black |
| Sizes |
- Professional size |
Wheels And Breaking System
| Bike front tire | 20 X 1.95 (inches) Kenda Kovert |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Promax Alloy Rear Levers Aluminum U-brake Rear Brakes |
| Hubs for disc brakes | 14 (millimeters) Axle Aluminum |
| Rims manufacturer | 48-hole Aluminum |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 14ga. Straight Gauge Stainless Steel |
Frame and Body Specs
| Frame materials | Down Tube and hi-tensile Steel Chromoly Top Tube |
| Frame type | TIG-welded |
| Handlebar construction | Steel BMX |
| Handlebar extender | Not Available |
| Handlebar stem details | Aluminum 4 Bolt |
| Headset size | 1 1/8 (inches) Threadless Steel Threadless |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC Z410 |
| Bottom bracket shell width | American |
| Bottom bracket type | Loose Ball |
| Crankset parts and sizes | 39 Teeth 3-piece Chromoly 175 (millimeters) |
| Gear shift levers | Not Available |
| Rear gear set | 1-speed |
Eastern Bikes Proton Shovelhead Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly Steerer |
| Fork type | Eastern |
Other Specs of Eastern Bikes Proton Shovelhead
| Component group sets | Not Available |
| Pedals details | Wellgo LU-313 |
| Rear shock absorber | Not Available |
| Saddle seat | Eastern ID |
| Seat post extension | Steel |
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 Eastern Bikes Proton Shovelhead manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Eastern Bikes Proton Shovelhead Freestyle here