Just checked the sprockets and I've changed to 14/47 which is the same ratio as stock. Figured it's a decent balance. A little high for sand trails but good on gravel and dirt roads. Which is probably 90% of the route typically. 4WD trails included. I've kept the original 13 tooth to change to in Europe. Hopefully on the same chain. It'll be 99% pavement there.

not a yamaha but a 250 nevertheless

https://www.youtube.com/watch?v=2uFBAn6ET5Y

for all the small bike doubters :)