{"product_id":"ac-22031070","title":"Front Spring TRX850","description":"[HYPERPRO 22031070 Front Spring TRX850 Suspension Fork Spring]\n■Front Spring\nSuspension springs with a constant rising rate, uniquely designed by Hyperpro.\nThe spring rate constantly changes in response to the suspension's movement.\nIt maintains a state that is neither too soft nor too hard, while also providing the strength to withstand high-load cornering and sudden braking.\n●Optimizes changes in caster during braking before a corner, making it easier to transition to the next action. Absorbs small bumps during cornering, eliminating vibrations that disturb the rider.\n●Unlike conventional springs, there is no constant spring rate, so resonance does not occur.\n●Springs wound by computer-controlled machine tools are shot-peened to remove microscopic surface scratches that can lead to performance degradation. Furthermore, after completion, each spring undergoes a performance inspection by a tester.\n●In Hyperpro's home country of the Netherlands, all ambulance motorcycles are equipped with Hyperpro springs.\nCompatible models\nYAMAHA TRX850 '95-'99 (Japanese specifications)\nSpecifications\nSpring part number: 333\nFork oil grade\/oil level: SAE15\/160mm\nPreload adjustment: 5th-7th stage\nSag value: 23mm\nCompression adjustment: None\nRebound adjustment: PO. 4\nSetting remarks: Install with forks protruding 30mm\n*Images are for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Please understand.","brand":"ハイパープロ(HYPER PRO)","offers":[{"title":"Default Title","offer_id":45505304920299,"sku":"ac-22031070","price":25948.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/ac-22031070.jpg?v=1718362351","url":"https:\/\/bikeman.jp\/en\/products\/ac-22031070","provider":"バイクマン","version":"1.0","type":"link"}