There is no right answer to this question as it will entirely depend on your individual needs and what type of bike you own. If you have a mountain bike, for example, then adding a radiator may be essential in order to keep you warm while cycling. Conversely, if you have a road bike that doesn’t require as much heating, then a radiator may not make too much of a difference. Ultimately, the best way to find out if adding a radiator is worth it for you is to take into account your specific needs and preferences when purchasing your bike rack.