The Tiger 1200 has pretty good valve service intervals, 32,000 km / 20,000 miles and it swayed my decision when I bought the bike. What other bikes do you know or have experience of with long valve service intervals in the Adventure/Tourer/Sport-Tourer class? Or did you ever have a bike with very short and/or expensive intervals? Harley and Ducati seem to be paving the way on this, hats off to them.
Harley Pan America - non, never needs doing, hydraulic valve system - EPIC!
Ducati V4S - 60,000 km / 36,000 miles - EPIC! (but I couldn't live with the reported fuel consumption)
BMW 1250GS - 20,000km / 12,000 miles - not great these days but do the dealers charge a lot for the service as access is easy? (I genuinly don't know, if an 1250 owner can comment)