So far, the best kept moto travel secret in South Asis is Borneo. First week of July is the Rainforest Music Festival in Kuching, Sarawak (East Malaysia) A fascinating event worth attending.
From there, a ride through Brunei and into Sabah is a slam dunk on beatiful two lane paved roads with zero traffic. Stunning scenery and since hardly anyone ever rides there, locals are not yet tainted.
If on a lightweight bike, you can even cross into Kalimantan from Tawou by passenger ferry and circle the entire island using logging roads with GPS coordinates soon to be published here or on my site. Warning: even in dry season this is a very muddy and difficult ride that took me three weeks just in Kalimantan.
Now the best part--Round trip for bike and passenger on an MAS flight is $450.00USD. Customs procedures take two hours on both ends but are smooth with plenty of help from officials. No bribes or hassles. Enjoy.