It is accessible for people who use a wheelchair

Hello Martin - We want all our visitors to experience the Museum to the fullest. Contact our museum staff if there is any additional way to make the most of your visit. The museum has outdoor parking with disabled parking spaces located throughout the museum grounds. Wheelchairs, electric chairs and mobility scooters are welcome, and we have complimentary wheelchairs available on a first come first served basis. More information: https://www.harley-davidson.com/us/en/museum/visit/visitor-information.html

yes they have elevators

If it is accessible.