Harley-Davidson climbs aboard for X Games

US motorcycle manufacturer Harley-Davidson has reached a multi-year deal to sponsor the X Games extreme sports event.

The partnership, which was sealed with sports broadcaster and series organiser ESPN, begins with X Games Austin 2015.

Harley-Davidson flat-track racing will make its debut among the X Games sports line-up in the Texan city on June 4-7.

ESPN and the ABC network will televise 20 hours of live action from X Games Austin, while ESPN will also provide extensive coverage across its digital platforms.