Finished new install of new leading link assembly on my BMWK100RS. This is a quality unit manufactured by Wasp cycles in the UK. Attempt to take my first ride resulted in an absolutely uncontrollable shimmy from start to stop. I have a shimmy dampener installed, again a quality unit specifically for sidecar use, previously installed on my bike with a stock front end. I am unsure as to where to begin, perhaps someone can suggest a direction to move in. I have informed the manufacturer but have not received a response as of yet. Suggestions would be appreciated. Thank you, Craig

Hello Craig,
Maybe look at the shocks you have on the leading link and their settings. Too hard will make things skip around a bit and feel like it wants to tank slap. That might be a starting point for you.
Sean

Maybe post a picture of your forks.
I have Wasp forks on my K1100 and they are quite stable although I do have a steering damper (VW type).
Other thoughts: Are your steering head bearings ok? Also, the Wasp forks move the wheel forward a bit. You need to check the toe in and lean out are ok.