Steady progress on Random's Tribsa chop.

I've managed to get a few little bits sorted on the chop over the last couple of weeks, despite the lack of heating in the garage. Machined an ally plate that sits on the bottom yoke to hit a couple of lockstops that I've tacked to the frame. Fabricated some downpipe brackets to replace the ones someone had bodge welded in the past and got the seat finally mounted.