I think that leverage is a very important consideration when thinking about the forces involved in towing trailers. With those single wheel trailers, the weight is shared between the trailer's wheel and the bike's rear wheel, but the load is nearer to the trailer's wheel than the bike's, and so most of the weight is carries on the trailer wheel.92kk k100lt 193214 wrote: ↑Thu Nov 23, 2017 5:29 pm I have looked at a lot of trailers but wonder what nose weight comes with the single wheel trailer when its loaded to 150kg. Some nose weight is essential but I don't fancy a 100-150 kilo nose weight on a bike.
It is also important to note that the linkage to the bike is at the rear axle, which is almost the theoretical ideal place because it minimises the effect that the additional weight has on the bike . Again, leverage is the key. Here, the contact patches between the tyres and the road surface are the fulcrums, and the further from these contact patches that a force acts, the greater effect that force has. So, a heavy load in a top box can seriously affect a bike's handling, whereas the same load strapped to the back seat has much less effect.
Leverage is the only reason that I can think of why a trailer has so little effect on a bike's handling. Even with a conventional towball behind the rear wheel, the forces are applied very close to the rear wheel contact patch, and that minimises their effect.
