From the limited information I was able to find, the following link seems to be the fastest possible route without tolls, although I’m not 100% sure if motorcycles will be permitted on this entire route.
https://maps.app.goo.gl/QST4WgNv42mV8iCJA
When I used to drive from Pattaya to Bangkok I would get onto the on-ramp (to what is called the Motorway) using the rising curved on-ramp close to the North Pattaya Road and then I would stay on that a short distance until it would have a turn off to the bypass road. Then I would switch to the bypass road (from what I can recall) before it actually reached the formal Motorway entrance (which is only for cars). Then I would stay on the bypass road until it reached the Bang Na Trad highway and take that the rest of the way to Bangkok. It would take me around 100 minutes (from what I remember) to reach the Bang Na Trad / Sukhumvit Road intersection. Usually I would start driving at sunrise to avoid as much city traffic as possible (once getting into Bangkok).
This was at least 5-7 years ago though and I know the roads have changed a bit. So I am wondering if this route is still possible? And if it’s not, then what would be the best route to drive to Bangkok from Pattaya by bike please?
many thanks…