Hello. This is a follow-on from this thread:

http://www.bikeforums.net/showthread.php?609201

Basically, I'm dealing with a pashley trike with electric assist in the front wheel, but that wheel won't stay in the dropouts no matter what.

I need to keep the existing steering tube, since no other one is long enough.
My options are basically to either construct some kind of retaining structure to work with the existing forks, or to splice some new forks onto the old steering tube.

Here are the old forks (blue) and some BMX ones that were suggested as possible donors for the bottom part and their dropouts. In that pic, I would use the parts on the arrow side of the line, from each dropout, welding them together.













And the original forks in situ:

http://img651.imageshack.us/img651/2...f7246small.jpg


Now, I reckon the new silver forks are quite poorly suited to this job, really. The dropouts aren't particularly deep, for starters, and there might just be the same problem in the end.

So I'm thinking that fabricating something to hold the axles on, in the old dropouts, might be a better idea. I can cut sheet metal, and weld, but drilling metal isn't possible at the moment. I suppose I could manage it somehow, though.

Something like this:

http://www.bikeforums.net/showthread...1#post10153204


Does anyone have any comments or ideas at this stage?
I know I haven't covered every detail, so do ask for specifics or more info if you need it.

Thanks a lot