Not being as clever at maths and geometry as you guys I initially ordered my bumper with no swingarm and "we will see". Once bumper was fitted I measured the height from bottom of rim to under wheel arch with wheel on door. Then loosely fitted the swingarm with the spare.iandvl wrote: I hear you Peter. The thing being being the weight being carried further back means an increase in the leverage. I'll do the math at some point. Not today - my head hurts.
Difference was less than 1 mm on right and left stayed the same. My wheel is approx 170 mm away from the door to allow for more "stuff" to be fitted.
Now once "The Firetruck" stops doing a "Ford Kuga" to my cash I would like to fit a 2nd swingarm on the left for 60 l fuel and my recovery tracks. So I put my 100 kg on the back bumper as far back as I could and got my son to measure. Surprise surprise. 2 mm on each side.
The one thing that is relevant here is that I do have the hardest 400 kg OME springs on the back.