Originally Posted by malc
Didīnt early choppers "jacknife", front wheel over turning ?
So what happened to make them safe(r) ?
Yes, this was before a way was found to return the trail distance and positive/negative direction to something that was managable. The early bikes simply angled the steering head and used long forks. This resulted in big and often uncontrollable steering problems by upsetting the distance and direcction between where a line drawn along the fork would enter the pavement and where a vertical line from the pavement thorugh the axle occurs. The solution was to also angle the forks by changing the pitch of the upper to lower tripple tree. Doing this kept the radical chopped and raked out look of the front end but put the true angles and distance between the theoretical point of fork rotation and the actual point of tire contact with the pavement back into the managable range of a positive 4 to 6 inches.