To show the difference between the worn original springs (1st and 3rd from the left) and the Öhlins springs (2nd and 4th from the left) I uploaded a picture.

Does anyone know why the Honda manual shows a linear spring for the original SP forks while the R forks have progressive springs? My forks should be SP forks, but they had progressive springs.

According to the manual the free length of the spring on the SP is 301.2mm and 291.5 mm for the R model. It is strange then that my original springs are progressive like the R-springs but longer than the R-springs. Could they have been replaced, but why use such low spring rate?

Anyone have any ideas?
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MC21, GP-Replica (Daijiro Kato, Telefonica Movistar Team 2001)