R&D has significantly improved the Kawasaki Ultras serpentine belt tensioning wheel system by redesigning and precision machining a new tensioner wheel with a larger O.D. The new R&D Tensioner Wheel offers a wider adjustment range and helps to reduce belt slippage via more surface area for belt contact. Less belt slippage reduces heat and promotes supercharger bearing life! The R&D Tensioner Wheel also offers a perfect adjustment range when installing an R&D Supercharger Wheel. Better adjustment promotes less belt slippage which will add a boost in power. Wheel comes complete with precision bearing installed. Fits Ultra 310/300/260/250 and it is available now with the following Pt. # 611-25000.
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>Ultra 310/300/260/250 Supercharger Belt Tensioner Wheel – Now Available
















