{"product_id":"kyosho-w5303-09-big-bore-shock-piston-2-hole-2","title":"Kyosho W5303-09 Big Bore Shock Piston 2-Hole (2)","description":"\u003cp\u003eKyosho W5303-09 is a genuine pair of two-hole shock pistons for Kyosho's big bore dampers. The piston is what actually creates damping: oil is forced through its holes as the shaft strokes, and the number and diameter of those holes decides how much resistance the shock produces. A two-hole piston restricts flow more than a three-hole, which gives a firmer, more packed damping feel that resists bottoming on big jump landings and keeps the chassis settled on smooth, high-speed tracks.\u003c\/p\u003e\u003cp\u003ePiston changes work hand in hand with oil weight, and many racers prefer to change pistons rather than chase very thick or thin oils, since hole count gives a more consistent effect across temperature swings. These install as a direct-fit tuning option in Kyosho's big bore shocks, fitting the Ultima RT6, RB6, and SC along with the Lazer ZX-5 series and later SP models. Package includes two pistons, enough for one pair of shocks.\u003c\/p\u003e","brand":"PowerHobby","offers":[{"title":"Default Title","offer_id":44532748353624,"sku":"KYOW5303-09","price":4.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/0554\/8376\/files\/kyow5303-09_ce2788c2-59be-453c-b406-0451196d56cb.jpg?v=1786241845","url":"https:\/\/beavertonmilestonehobby.com\/products\/kyosho-w5303-09-big-bore-shock-piston-2-hole-2","provider":"Beaverton Milestone Hobby","version":"1.0","type":"link"}