Hi, Have just got a used two wheeled Hydratrail and loaded the bike up for the first time. My question is concerning fitting the wheels. With the frame lifted on the jack, I slide each wheel in from the front ( closest to the vehicle) with the spring loaded pin pulled back. When in alignment I release the pin and it goes in with a clunk. When I look at the unit I notice that the pin only goes about 3/4 of the way through the outer box section and through one side of the inner wheel frame box section although there are corresponding holes that suggest the pin might go all the way through. It is the same for both wheels. I am off on a long trip fairly soon and unfortunately the company that makes the unit are on holiday shutdown at present. I would be really grateful if anyone who has one of these could confirm that the pin does not go all the way through.