I don,t know how you guys in the rest of the world get your mail delivered, but here in Australia it is by the trusty Honda ct110 .
I mean you just can,t kill these things. We posties do about 50 klm,s a day on these bikes and that is mostly in first and second gear of stop and start riding. After 25,000 klm,s they send them out to auction where the general public can purchase one and abuse it even more. Which they do relentlessly.
So go to YOU TUBE type in "postie bike" and be amused.

The posties motto "STEP THROUGH OR STEP ASIDE"