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YSS progressive front fork spring set for Yamaha YZF R1 06-18/R6 17- motorcycles.
Specifically designed to improve the performance of the front system, particularly the front suspension, in combination with the replacement of the lubricant recommended by the manufacturer.
No modifications are needed during installation; simply replace the old springs with the new YSS ones.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.