I have many trips north and south, the north is by far the best direction to go... I ride a GS 2up with the luggage, we pack for 5 days worth of clothing and do laundry 2 times along our journey.. We do 13-15 day trips and truly enjoy the adventure.. The views and scenery are worth the trip.. The roads are for the most part in good condition, with minimal traffic.... Great way to enjoy some of what Thailand has to offer.. I see motorbikes along the way that just aren't able to keep up.. They always try, but they eventually drop back and relax a little.. I meet some of the nicest people on these rides, locals, expats, tourist and the BIB... The wife is always chatting it up and making new friends also... I highly recommend doing this, proper license, bike and safety equipment is a must for you to relax and enjoy the ride!!!