Dirt Bike Service in Orange County. On this page you will find some of the Dirt Bike services Nicoll Racing offers, as well as competitive pricing. Nicoll Racing services Dirt Bikes like Yamaha, Honda, Kawasaki, Suzuki, KTM and many more. We do all service from tuneup's to complete motor Mods. We also do Free Diagnosis on all Dirt Bikes. Come see our shop in San Clemente.