I know this is a long shot but I have been trying to track one down for a while. Back in my riding hay-day this was "The" bike for me but way out of my price range. Now I am old and out of shape and would love to start riding again. I will probably pick up something else to hold me over but if anyone knows of someone with a Boxx laying around I would love to take it off their hands.
Full build bike. On the cheap. Some really nice parts. Discount for real trials guys. $300 follow the link for the frankenbike. https://fortsmith.craigslist.org/bik/d/trials-ish-sweet-old-school/6768933823.html Also have an old school trials frame, with a seatpost, vee and disc mounts +10 B.B. would make a great street frame. Has B.B. , cranks, vees, rear derailleur and half bash already installed. $75 . I’ll post pics tonight. Get both and mash parts together to build a sweet all around street trials that you can shift and still actually ride it like a bike. Ride like it’s 2001.