well mine is one of the first ntx to hit usa 12 flat tappet, and aside from a dealer induced failure( they made a mistake with the setup) it has never left me stranded, or really even given any issues. They did warranty my rear wheel for a few leaking spokes but this was due to improper torque of the nipples during assembly.( I actually had it solved by the time the new wheel came by loosening / truing ) and correctly torquing the nipples according to the spec I got from alpina. The new wheel was torqued accoding to alpinas numbers and tighter than the original had been at delivery.
the valves take 30 min to do. and the fluids about an hour to change.
The more time I ride it the more I like it, now at 22,000mi
ps my valves have changed during the first 6,000mi ( I set them every 2k) but since then 1 intake has opened up about .001 at 15,000mi, and 1 ex got .001 tight at 15,000mi. I still check every 4kmi but have actually only seen a "need to adjust" once since 6,000. And I run the fuck out of the big girl
ps my break in was to pick up bike in Ga, run the first 4 gears all the way up to the 7k mark and full engine brake back back down in the twisty mtn roads for 60 miles (change oil in engine) then ride it full load and engine brake in the mtns. for the next 700mi do the first service and just ride it like a sport bike from there on out... and it has never used a drop of oil between changes
the valves take 30 min to do. and the fluids about an hour to change.
The more time I ride it the more I like it, now at 22,000mi
ps my valves have changed during the first 6,000mi ( I set them every 2k) but since then 1 intake has opened up about .001 at 15,000mi, and 1 ex got .001 tight at 15,000mi. I still check every 4kmi but have actually only seen a "need to adjust" once since 6,000. And I run the fuck out of the big girl
ps my break in was to pick up bike in Ga, run the first 4 gears all the way up to the 7k mark and full engine brake back back down in the twisty mtn roads for 60 miles (change oil in engine) then ride it full load and engine brake in the mtns. for the next 700mi do the first service and just ride it like a sport bike from there on out... and it has never used a drop of oil between changes