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

We are focused on a simple goal: Keep You In Control. Whether you're on the street, dirt, mud or even sand our combined technologies will show that terrain who's in charge. Once you try it you'll wonder, like we did, why nobody has done this before.

Our engineers have a wide range of experience from working for other motorcycle manufacturers both American and