This two-wheeled wonder is a 1972 Rokon Trail-Breaker, and as most of you know, it’s two-wheel drive. This ground-grabber is listed on eBay with a current bid price of $2,000 and there are still five days left on the auction! This Rokon is located in Pinole, California.
When I started this post the bid was around $1,500 so someone must be trying to weed out the stragglers or at least the non-serious bidders. The Rokon Trail-Breaker is neither a straggler nor is it non-serious. Quite the contrary, it’s a serious trail machine as seen in this YouTube video. Land, sand, snow, or stream the Rokon Trail-Breaker is one tough machine (hey, I just made that up!).. (hello, where’d everyone go?)
Charles Fehn, the inventor of the Trail-Breaker, was issued a patent in 1966 after several modifications to his original concept, and after making these machines for several years with a patent-pending issued in 1963. The big idea for the Trail-Breaker was his “ball-bearing-on-ramp system” which was simplified in 1962 to a “one-way spring-on-collar” device which is basically the same over-ride spring assembly that is still used today. The idea was that it was for helping to allow the front wheel, which is also powered, to turn faster than the rear wheel but not the other way around, thus making it safe to ride without the rider being thrown to the ground in corners where the front wheel turns faster. Of course, if a rider traverses a particularly tricky trail they may be thrown to the ground but not because of the rear wheel speed overtaking the front wheel speed.
Speaking of speed, or lack thereof, 1973 and earlier Trail-Breakers usually used a West Bend single-cylinder two-stroke with 7 hp. 1974 and later models used a somewhat similar engine by Chrysler, US Marine, and others. The seller says that this one has a “strong two stroke Chrysler Power Bee motor 146cc and good shifting transmission.” Right around 25 mph was the top speed for a Trail-Breaker of this era, which is probably fast enough when you’re riding over land, sand, snow, or stream… Who here has ridden a Rokon Trail-Breaker? Better yet, who has owned one?