GT AIR 2007 VS Dirtmaster BIG BERTHA 2001 specs comparison
GT Air
General Infos| Model | Air |
| Manufacturer | GT |
| Year of production | 2007 |
| Current price | Check price Here ==> |
| Color choice |
-Brilliant Silver Metallic |
| Sizes |
- 20 wheel (inches) |
| Sizes |
- 20 wheel (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.10 (inches) GT Air Bags |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Tektro 289 Levers Tektro 907 U-brake Brakes |
| Hubs for disc brakes | Rear: Sealed Mech Freewheel Front: Sealed Mech |
| Rims manufacturer | ACS Mag Wheels |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | Straight Gauge |
Frame and Body Specs
| Frame materials | Hi-Tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | GT Dirt and street Hi-Ten |
| Handlebar extender | Optional |
| Handlebar stem details | GT Aluminum |
| Headset size | Steel 1 1/8 (inches) Threadless TH |
Gearing Specifications
| Bicycle chain | KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Ball Type Steel |
| Crankset parts and sizes | 170 (millimeters) and '07 Design 42T Steel GT Design 42 Teeth Forged Steel One Piece Crank |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Air Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Steel |
| Fork type | GT Freestyle |
Other Specs of GT Air
| Component group sets | BMX Mix |
| Pedals details | Resin GT Jump Design |
| Rear shock absorber | Not Available |
| Saddle seat | GT Freestyle |
| Seat post extension | 25.4 (millimeters) Diameter Steel |
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 |
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 |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Air bike manual
- Find All parts, tires and accessories of GT Air Freestyle here
- Get your Dirtmaster Big Bertha manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Dirtmaster Big Bertha Freestyle here