Trainer Set Up Wheel Height While many cyclists dread the indoor training season, ensuring proper bike set up will make any workout more comfortable and enjoyable. A trainer elevates the back of the bike upwards a couple of inches. In order to ensure a comfortable position, make sure the bike is level. Lift your front wheel using a riser block to make up the height difference. This will ensure a more comfortable feel when riding the bike along with alleviating some of the pressure from the change in p