We are planning to ride from Phitsanulok to (North of) Chiang Rai in 2 days, stay 1 day and then back in 2 days (next month). What scenic routes do you recommend? We have a road bike and would prefer to ride mainly paved roads. Our base camp will be Phitsanulok (I will take our bike there on our pick-up truck from Chanthaburi) and we were thinking of staying one night in Nan, next day to Chiang Rai. I read the post "A mountain loop West of Nan" by DavidFL, inspiring, but how about going North taking roads East of Nan? BTW, we don't like altitudes where it gets chilli in day time. Your suggestions are very welcome.