Bill,
Coincidentally, I've been struggling with the Twin mag-mounting for a few weeks now. After looking at endless photos and sketches, rubbings and samples, I made my own. Great, progress at last.
NOT. Finally, I came to the only possible conclusion that the 1/2" slot is wrongly positioned on the original brackets. This limits any movement of the mag-mounting, (which needs to be in line with the two sprockets) and actually makes it cant over at an angle. So adjustment is severely limited. (I accept though that it
could be an issue with the jigging of my frame at the front!).
Finally, I made a mock-up with the offending slot
re-positioned and it works like a dream. So then I bought a piece of 1/4" alloy channel, 4 inches across, and marked it up as per the photo. I've since got it roughed out and hope to have it all fitted-up soon.....
I'd be interested to know if you've got full range of movement (in line with the sprockets) on your original mag-mounting bracket?
Peter B
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