I think you may find it fairly quiet in Issaan for the biking scene. Most people here seem to keep to them selves.
You may strike lucky and if you do, then end up with a riding buddy for a longer term.
I'm in Korat, PM or e-mail me , I can go on rides 6 months of year, unfortunately work takes the rest of the time.
You don't say if you prefer day trips, long rides, trips to Lao or Cambodia ? Offroad or on road ? I am open to all of those.