{"product_id":"ac-22035010","title":"Front spring R1-Z","description":"【HYPERPRO Hyperpro 22035010 Front Spring R1-Z Suspension Fork Spring】\u003cbr\u003e\n ■Front Spring\u003cbr\u003e\n Suspension springs with a constant rising rate, uniquely designed by Hyperpro.\u003cbr\u003e\n The spring rate constantly changes in response to suspension movement.\u003cbr\u003e\n It maintains a state that is neither too soft nor too hard, while also providing the strength to withstand high-load cornering and sudden braking.\u003cbr\u003e\n ●Optimizes the caster change during braking before a corner, making it easier to transition to the next action. Absorbs small bumps during cornering, eliminating vibrations that interfere with the rider.\u003cbr\u003e\n ●Unlike conventional springs, there is no constant spring rate, so it does not resonate.\u003cbr\u003e\n ●Springs wound by computer-controlled machines are shot-peened to remove minute surface scratches that lead to performance degradation. Furthermore, each finished spring undergoes a performance inspection by a tester.\u003cbr\u003e\n ●In Hyperpro's home country of the Netherlands, all ambulance motorcycles are equipped with Hyperpro springs.\u003cbr\u003e\n Compatible models\u003cbr\u003e\n YAMAHA R1-Z '90-'93\u003cbr\u003e\n Specifications\u003cbr\u003e\n Spring part number: 384\u003cbr\u003e\n Fork oil viscosity\/oil level: SAE15\/130mm\u003cbr\u003e\n Preload adjustment: 2nd-4th stage\u003cbr\u003e\n Sag value: 23mm\u003cbr\u003e\n Compression adjustment: None\u003cbr\u003e\n Rebound adjustment: None\u003cbr\u003e\n Setting notes: Install with forks protruding 20mm (using genuine preload bush L=130mm)\u003cbr\u003e\n *Images are for illustration purposes only. Product designs and specifications shown are subject to change without notice. Please be aware.","brand":"ハイパープロ(HYPER PRO)","offers":[{"title":"Default Title","offer_id":45505149993195,"sku":"ac-22035010","price":25949.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/ac-22035010.jpg?v=1718358510","url":"https:\/\/bikeman.jp\/en\/products\/ac-22035010","provider":"バイクマン","version":"1.0","type":"link"}