TBM Racing Sponsons - Kawasaki Ultra 250/260/300/310
by TBM Racing
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Introducing the most adjustable rear sponsons on the market for your Kawasaki Ultra. Several unique design features separate our sponsons from the competition. Our backing plate is a two piece design constructed of 6061 billet aluminum and allows you to adjust the sponson closer, or further away from the hull dramatically affecting the handling characteristics of your Ultra. The backing plates are not just a mounting pad for the sponson blade, they are designed to create lift and reduce friction once up on plane with our stepped design which increases speed and gives the blade more bite in the corners. Our blades also incorporate a stepped design and have 12 different mounting positions giving you an infinite amount of adjustment. A race inspired billet aluminum washer prevents the sponson blade from flexing under the most extreme conditions.