I know some of the documentation that came with parts of my Tomos speed kit
mentioned that they were for a Puch. Everything bolted up just fine and runs great.
As for riding at the speed of traffic, it is much safer. I find that the difference
between before the speed kit, and after, is the difference between being a
nuissance to traffic, and a really cool/suprisingly fast bike. When I go down the
highway at 50+ (engine screaming) cars will occasionally pull over to watch this
tiny little bike fly down the highway (Rt. 13 Delaware, 3 lanes). I'll get everything
from nods, to waves, to astonished speedometer checks. The "real" bikes in town
give me nothing but respect now that they've gotten accustomed to seeing me
on the road at speed. They can still blow my ass away at will, but never do.
Without speed, you are just a bike with a weed eater engine getting in folks
way when it comes to heavy traffic.