Tier Motorsports About Us

Tier Motorsports is the manufacturer of the patent pending Four-Bar Steering Mechanism. Currently under development is an add-on to the Yamaha off-road motorcycles that incorporate our patent pending technology in a front swing arm suspension kit.

Tier Motorsports also offer the expertise of its engineers to clients in the automotive and motorsports fields. See our "Consultancy" page for more info.

Our engineers have a wide range of experience from working for other motorcycle manufacturers both American and Japanese to automotive all-wheel-drive O.E.M., to laser leveling technologies for NASCAR racing. Industrial designs are performed in collaboration with Adrian Sellers who has extensive experience working on motorcycles designs for such companies as Kawasaki and Yamaha.