Dirtmaster Big Bertha 2001 Technical specs and features
| Brand | Dirtmaster |
| Model | Big Bertha |
| First production | 2001 |
| Bike category | Freestyle |
| Bike sub-category | Freestyle And Jumping |
| Bike Pricing | Check price Here ==> |
| Parts And Accessories | Dirtmaster Big Bertha Parts |
| Available 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 Specifications
| 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 Specs
| 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 |
| Available colors | - Black - Green |
| Weight | 36.0 |
| Pedals details | Radix |
| Rear shock absorber | Not Available |
| Saddle seat | Radix |
| Seat post extension | 25.4 (millimeters) Diameter Radix |
Dirtmaster Big Bertha picture
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Dirtmaster Big Bertha bike review
Dirtmaster produced the Big Bertha bike in 2001 and can be classified as a Freestyle bicycle, this exact model costs in american market arround $569.00.
Dirtmaster Freestyle Big Bertha can be found in a few colors, among these colors Black and Green .
This bike is equiped with 24 x 1.95" Radix tires and Chung Nan stainless steel spoke wheel while the rims are manufactured by Alex aluminum, 48-hole. Dirtmaster equiped this exact model with Dia-Compe 990 rear brakes, Dia-Compe Tech 99 rear levers braking system and Radix hubs.
To guarantee the comfiest ride Dirtmaster used Chromoly material for the frame. DirtMaster Monkey Bar high strength material is used on the handlebar of this Big Bertha to ensure the perfect handling while the stems are made of Radix.
For the smoothest biking experience 3-piece aluminum/chromoly, 40 teeth is used on this bicycle linked to KMC Z410 chain that is easily replaceable as stated by Dirtmaster.