Came across this post. So happend Dave was a good friend of mine. WSe raced moto against each other in the 70's. I moved away and lost touch till I ran into him while visiting. I was rehabbing a blown knee and happened to be riding Mtn Bikes. he wanted to build me a bike. So, after many beatings I agreed. What he built for me was glorious. I raced it for a year then got back into mot. Dave was killed a year later in a hang gliding accident. I never had the heart to part with the bike. Still sits in my office all restored. RIP Dave.