Can I recommend CAR SPA (on Suthep Road opposite Maharaj Hospital) and on left-hand-side driving towards mountain with moat behind).
Honda-type 100/125cc motorbike = 50 baht for wash and 50 baht for wax (total = 100 baht).
Harley motorbike (more chrome-work etc) = 100 for wash and 100 baht for wax (total = 200 baht).
The Manager's name is YON - and they do a first class job on both bikes and cars - using Auto Glym products
Tony

Honda-type 100/125cc motorbike = 50 baht for wash and 50 baht for wax (total = 100 baht).
Harley motorbike (more chrome-work etc) = 100 for wash and 100 baht for wax (total = 200 baht).
The Manager's name is YON - and they do a first class job on both bikes and cars - using Auto Glym products
Tony