I sourced a Ducabike connecting rod from Biggelaar Special Performance that is able to adjust the height of the bike. Unfortunately the standard adjustment bolt isnt long enough. I did some calculations on what the new length should be and starting work on a longer version.

Made out of 7075 T6 aluminium with right and left hand M16 thread on both ends. Waiting for a collet block so i can mill the hex shape that allows adjustment using a wrench.