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2012 Beta Dirt Bikes First Look Photo Gallery

The 350, 400, 450 and 498 (previously the 520) are all based off the same platform.

Check out the new four-stroke lineup from Beta Motorcycles.

The cam chain tensioner is changed to minimize engine noise, as are the valve retainers along with a reinforced camshaft bridge.

Beta used KTM RFS engines up until 2010 and then started using its own engine developed by the Italian company. One of the big features is that it still uses a carburetor.

The AJP hydraulic clutch is traded out for a Brembo unit.

A new clutch primary gear and springs help beef up durability and improve clutch action.

The Betas get updated counterbalance bearings.

The engine cam chain receives higher oil volume and the drain plug is revised to simplify oil changes.

Braking is handled by a new set of contoured rotors.

Beta has once again switched back to red bodywork with new front fender support and redesigned headlight assembly.

Beta uses Nissin brake calipers.