PowerMadd Black 4 inch Pivot Style Riser Block for Ski Doo gives you the height you need along with the ability to position your handlebars front-to-back for the best riding comfort possible. The pivot style riser blocks are designed to replace the stock pivot style risers utilizing the stock bolts and clamps. If your sled does not have a stock pivot style riser, simply bolt on the pivot adaptor kit. It turns your flat top steering post into a "T" style post and then add the length of the pivot style riser you need. Some Polaris IQ and RMK models come stock with a narrow (3.25 wide) style riser. Replacements are offered for the stock risers in 4.5 inch, 6.5 inch and 8.5 inch heights. There is no pivot adapter required. The Yamaha Nytro riser is a replacement for the Nytro RTX stock pivoting riser and adds 2 inches of height with no cable modifications.