Thank you for the first hand accout and insights
@Tallbikeman ! This is great stuff! I really love learning about the early days of what became modern mountain bikes. The parts I really love is the grass roots nature of it and DIY necessity. It really made for some interesting machines back then. I grew up in the south Bay Area and the "klunkers" I saw running around in the '70s were usually 10 speeds, sometimes cruisers, with the drop bars flipped up to a more comfy riding position and a more comfy seat. Of course my buddies and I mostly had BMX at the time but all of those bikes went everywhere. Wheelie contests were big.
I'm really enjoying your perspective here with your love of the simple machinery, which definitely appeals and makes perfect sense considering your reasoning. I think some of the fastest times set on Repack were by Joe Breeze and Otiz Guy on their coaster braked bikes if I recall correctly? Also the extra weight and complexity of the 'hybrid' bikes would clearly have the disadvantages you describe. I really remember the hammering handlebars! Both from my BMX days and from my rigid MTB days. And I used to 'ring' the handlebars in the same way. Front suspension really makes a huge difference off road.
I'm really intrigued by your choice of the Varsity as a Klunker. Were you able to get fat tires on it? I'm thinking about building a Varsity klunker now too, I'll be keeping my eyes open for a good donor. Do you happen to have any pics of your old Varsity you'd be willing to share? Or pics of the races back then? Thanks again for all the great info!!