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stability not be affected by the wheelbase being shorter due to the 20" rear wheel
I'm intrigued to find this out too, I stretched them out for that very reason so the chain stays are ~400mm in the shortest position... not much shorter than they would be with a larger wheel, so the contact patch is pretty well in the same place. I think they look very short because the motor mount encroaches into where they would normally be. I also don't think it will want to wheelie given all of the weight up front and at the motor, but I could very well be wrong!
The front wheel is already in a 'normal' position
Yes, although I have slackened off the HA as much as I dare (while keeping reasonable trail) to try to compensate for getting rid of the extension.
Will there not also be a lot of brake dive with the length of fork travel
I'm also a bit worried about that. The fork is 100mm travel, so it's more than I've seen on most cargos. It does have a lock-out though, and I think if I find I'm using that when its loaded I may end up making something rigid for it, or trying something shorter travel.
Appreciate the comments, and definitely don't read it as criticism... I only wish I'd started the thread sooner (i.e. before cutting tubes!) I suppose I think this is the bike I want, but it's definitely a prototype, so we will see.
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liam-h
Will the stability not be affected by the wheelbase being shorter due to the 20" rear wheel giving less length behind the rider? The front wheel is already in a 'normal' position, with no extension under the load, which is sitting very high due to the suspension forks. Will there not also be a lot of brake dive with the length of fork travel combined with the high/forward weight over it?
Not criticisms as you're building the exact bike you want, just questions.