thanks for that byzmax one more point if i may, will the rose joints on my swing arm help to releave some of the stress at the pivot points on the frame as these allowe a little camber or flexing if you like beetween the swing arm and the bike frame,
You should not have any movement other than the vertical movement of the swingarm.
If your using a 20 year old frame it will have already taken a pounding. You need to strenthen the area around the swingarm pivot. You might be ok without it but that frame is not designed for the purpose you intend to use it for. Also Trikes generally don't get used much. For most it will be less than 2k a year so problems such as stress fatigue will take longer to show up.
The point is. Your life will depend on the details like this. In my earlier years I bought trikes and rode em without a care but had a couple of failures that luckily did not result in any serious injury but it was luck...... The reasons for the stress failures where obvious after they had happened but not before.
