{"product_id":"ac-22031471","title":"Rear Spring YZF-R1","description":"【HYPERPRO Hyperpro 22031471 Rear Spring YZF-R1 Suspension】\u003cbr\u003e\n ■Rear Spring\u003cbr\u003e\n A suspension spring with a constant rising rate, uniquely designed by Hyperpro.\u003cbr\u003e\n The spring rate constantly changes in response to the suspension's movement.\u003cbr\u003e\n It maintains a state that is neither too soft nor too hard, while also providing the necessary resistance during high-load cornering and sudden braking.\u003cbr\u003e\n ●Front springs come with the required amount of fork oil.\u003cbr\u003e\n ●Optimizes changes in caster during braking before a corner, facilitating the transition to the next action. Absorbs small bumps during cornering, eliminating vibrations that interfere with the rider.\u003cbr\u003e\n ●Unlike conventional springs, it does not have a constant spring rate, so it does not resonate.\u003cbr\u003e\n ●Springs wound by computer-controlled machine tools are shot-peened to remove minute surface scratches that can lead to performance degradation. Furthermore, after completion, each spring undergoes a performance test using a tester.\u003cbr\u003e\n ●In the Netherlands, Hyperpro's home country, all emergency motorcycles are equipped with Hyperpro springs.\u003cbr\u003e\n Compatible models\u003cbr\u003e\n YAMAHA YZF-R1 '04-'06\u003cbr\u003e\n Specifications\u003cbr\u003e\n Spring part number: 549\u003cbr\u003e\n Preload adjustment: POS 1-3\u003cbr\u003e\n Sag value: 10mm\u003cbr\u003e\n Compression adjustment: 15 clicks +\/- 3 turns\u003cbr\u003e\n Rebound adjustment: 22 clicks +\/- 5 clicks turns\u003cbr\u003e\n *Images are for illustration purposes only. The design and specifications of the products shown may change without prior notice. Thank you for your understanding.","brand":"ハイパープロ(HYPER PRO)","offers":[{"title":"Default Title","offer_id":45505387692267,"sku":"ac-22031471","price":28205.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/ac-22031471.jpg?v=1718364040","url":"https:\/\/bikeman.jp\/en\/products\/ac-22031471","provider":"バイクマン","version":"1.0","type":"link"}