I know I am in the mountain biking area and I really enjoy off-road riding but I wouldn't really consider my bike a mountain bike at least not any more. You see I put a 20 inch wheel on the back and I have a 26 inch wheel in the front of my bike (originally a 26 inch bike). While it has greatly increased accerlation it travels a shorter distance over time so I get exausted quicker than I normally would. Also my turning radius and ground clearance is decreased but my traction and off-road abilities are increased. So what do you think is this a good or a bad idea?