Dirt Bike Parts from Nicoll Racing. Nicoll Racing has done the research on almost all the new dirt bike products on the market. We have come up with a new web site that you can trust we have put the time and effort into testing these Dirt Bike Parts. We will stand behind what we sell and will not list parts that we don’t like, or that have not tested well for us. Nicoll Racing is a high performance race shop and we install products every day, and test every week. Check out Nicoll Racing for all your Dirt Bike Parts needs.