Riding in Asia - Thailand and Vietnam - Advice please!

If you can fit in a bit of touring and don't mind some big climbs, cycling some of the Mae Hong Son loop would be great. I drove it last year and was very envious of the few touring cyclists I saw.

Or if you just want to do a day or two's mountain biking from Chaing Mai, I highly recommend the company we used, who I think were called crank adventures. Wasn't super cheap (guided mountain biking never seems to be), but was well worth it - they knew some amazing routes up in the hills.

Out of interest, was it your car, hired or a mate's? Looking to do some driving through Thailand/Vietnam later this year and wondering whether hiring or buying are viable or better off geting train everywhere...