The first International Motorcycle Show (IMS) kicks off this weekend in California’s Bay Area at the San Mateo County Event Center, which also means it’s time again for the first Ultimate Builder Custom Bike Show of the season. That said, Motorcycle USA is pleased to announce it is one of the primary sponsors of this year’s Ultimate Builder Custom Bike Show. In the meantime, Ultimate Builder Custom Bike Show coverage and results will be posted after every show here at Motorcycle USA.