Some thoughts after 1 month and 700 miles of ownership.
First, the bike is a good fit for what I wanted; small displacement bike for the twisties of Napa Valley, some light trail riding, and jaunts around town.
I bought the 2018 version with 1000 miles from a private seller. It had already gone through its first 600 service and also the side stand recall.
Here are my thoughts on the 'room for improvement' stuff. The brakes are not great and wondering what anyone has done to improve that situation?! The suspension is soft and while it glides over most potholes and road imperfections, it doesn't inspire much high-speed cornering confidence. I know there are parts to improve this, but kinda pricey. The headlight is janky and dim. And the sounds from the lil' thumper stock exhaust are not especially manly or pleasing. Finally, the stock gearing is too high for maximum fun, not to mention off road riding.
So, it's not a perfect bike. To begin the process of making it more to my liking, I first removed all the blue and red stickers off the white bike. Next, I installed a 15 tooth front sprocket from Esjot. This has been a great and inexpensive improvement and brings the gearing down to where it should have been to begin with. The bike is about 25% peppier and is more frequently in a good power band. First gear starts are more responsive and 2nd gear rolling slow speed starts are much better too, nearly eliminating that chugging sound with the 16 tooth sprocket. Combining the new sprocket with clutch-less up shifting makes the bike down right zippy. Not fast, but better.
Here's some numbers associated with the new sprocket:
idle down to 1800 rpm from 1900.
1st gear @6000 rpm = 20 mph
2nd gear @6000 rpm = 28 mph
3rd gear @6000 rpm = 36 mph
4th gear @6000 rpm = 44 mph
5th gear @6000 rpm = 51 mph
6th gear @6000 rpm = 58 mph
Seems to suit the engine much better and seems to make the clutch-less up shift easier too. The only reason not to do this is if you commute at freeway speeds for long stretches as your primary purpose. Top end and gas mileage would both suffer.
Not sure what I'll do next. I think a top case that holds a helmet and other goodies would be nice. Maybe a tail tidy. Also, while changing the front sprocket I noticed about 1/4 inch play in the rear sprocket which is likely the cush drive dampers going bad. I hope this is a warranty covered repair with more dense rubber by now? Other improvements, however, are more expensive and maybe not worth it?
Finally, keep your chain clean! I don't think the original owner ever thought about it. Sprayed with kerosene, scrubbed, wiped and repeated until the chain went from black grime to shiny silver. Apply chain lube. of course.
Any feedback appreciated.