Start your engines! Purchase the quad 450 SX ATV from KTM and experience real off-road riding! You may have already purchased this downloadable content separately or as part of a bundle. License provided by KTM AG to Nordic Games GmbH © 2015 Nordic Games GmbH. MX vs. ATV Supercross and their respective logos are trademarks and/or registered trademarks of Nordic Games GmbH All rights reserved. All other trademarks, logos and copyrights are property of their respective owners.