Spring rates
If you do a search for spring rates you will find loads of info.
There was a group buy some time ago for car engine Roadsters 14" x 1.9 with 250 rear and 350 front.
On page 5 read Baz-r update who has roads similar to ours.
For bike engine my guess as a starting point would be between 200/220 R and 300/325 front.
__________________
Be Lucky, Mike. 
|