If you are going to be riding a bike trainer indoors over the winter to stay in shape then you will quickly find that it is extremely DULL to ride indoors. You don't have anywhere near the sensory stimulation that you have when riding outdoors and a rare few have been known to stick a fork in their eye simply to alleviate the boredom. Spinervals DVDs serve two purposes, they will keep you entertained and give you a killer targeted workout that will make sure you get the best use out of your … [Read more...]