Other 2021 Mason Definition

The Definition is designed to go a long way in comfort. The geometry is designed for stability at speed and when loaded. The slacker, but not too slack, angles work perfectly with disc brakes and perform dependably on a variety of surfaces, on and off road. Longer head tubes mean you are not too head-down for comfort, but they are a sensible length to ensure that power isn’t compromised when accelerating and climbing.

Above all, we worked to ensure the Definition has an engaging and spirited ride that makes you want to come back to the bike and take it far and fast. That really is the essence of this premium aluminum model.