The Maxreme unit is equipped with a seven-point, splined, solid-steel dive shaft that decreases vibration and allows for increased versatility with various attachments while providing exceptional strength and reliability. Perfect balance and reduced vibration enhance the MaxSpeed acceleration and deceleration while delivering more power to the attachments. This wide range of capabilities make this unit a great value. And with the Strato-Charged 2-Stroke engine providing unprecedented fuel economy while remaining environmentally friendly.