Bit of a long shot this...I picked up a second-hand exercycle, model is Ni-Trac VA500. Unfortunately it didn't come with a manual and I am scratching my head trying to figure out how it all works.
It seems the NZ manufacturer is no longer in operation.
If anyone has a manual would you be willing to photocopy the relevant pages and post to me? All costs reimbursed or happy to pay your suggested price.