If by "any problems" you mean like getting them in Europe or in Oz, then sure there are problems! But if you´re able to use just about any 17'', then may be it is easier to find them, but remember their quality can be different than ours.
Big bikes are rare, or extremely rare from around eastern parts of Turkey all the way to Thailand, then there are some (but not so many) of them in Thailand & Malaysia, and again very few in Indonesia. But you didn´t specify, which way you plan to travel.
Not saying they´ll be impossible to find (and we were carrying a spare set, so never needed to really find out!)... and if you´ve got time&money, then surely everything can be arranged. But I can tell you there wont be many bike shops like the ones you see in Oz, for thousands and thousands of kilometres in Asia. Lots of stuff for scooters and 100-150cc bikes, though, so engine oil, for example, was easy to find.