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YSS progressive front fork springs set for Yamaha R1 motorcycles 98-01. Specifically designed to improve the performance of the front system, particularly the front suspension, in conjunction with replacing the fluid recommended by the manufacturer. No modifications are needed during installation, simply replace the old ones with the new YSS.
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.