Be sure you take the new PowerDrive from Columbia 300 out for a spin. Under the hood, you'll find proven Mallet Core technology. A medium RG(2.50) with a very high (.054) differential will bring you the most powerful engine in the Columbia line. This core is surrounded with our Vaccine shell technology. Vaccine is a light loaded particle designed for today's medium to oily conditions. Take one out for a test spin and don't forget to wave as you drive past the competition!