I am interested in purchasing a power tap. Are there different types?? what are the standard features? will this replace a bike computer? where is the best and cheapest place to buy one. thanks
All your questions are answered at www.graberproducts.com. Two models. Both replace your bike computer entirely.
As for where to buy – ebay or pay retail. The main difference in prices is how and by whom it is built up into a wheel.