[Quote]Jerry Greer:
"The most common fault in leaf spring setup is found at the rocker pivot pin to fork leg not being dead-on center aligned with each other and/or the holes on lower fork legs are wallowed out or one or both "pads" surrounding the holes are very worn from the rocker pins left loose for years.
When you tighten the rocker pivot pin it's at a crazy angle to the fork spring eye stud, causing bind when stroked through the spring stroke arc.
Easiest way to determine bind is to tighten everything in the rocker assembly.
Complete front wheel/axle assembly must be installed tight.
Fork link rods must be installed properly to the rockers.
With the wheel at its working rebound "droop" position, try to install and tighten the spring eye stud to both fork link rods. If everything is correct, the stud should easily shoulder up tight to the fork link rods without distorting ANYTHING.
Remove the stud and repeat test with front wheel at its "full bump" position and results have to be the same for complete freedom of the linkage to move and not impart any torsion or bending resistance to the action of the leaf spring pack doing its job.
In short, all the pieces, together, need to be a nearly perfect inflexible rectangle, moving freely through all the perfectly parallel bushings and mating pins.
I didn't explain it simply but the concept is dead simple.
The rub is that fork leg bottom rocker pin holes are always f'd up quite badly and have to be fixed first.
Except for only being able to process small bumps, when restored properly, the Indian leaf spring fork is heads and shoulders superior in handling to the girder and telescopic forks as designed.