Sounds like you are enjoying your NK. I've had mine for about 18months from new, upto 57,000 km already (daily commute of 150km!). I've only had a couple of minor issues, all since 50,000km; water pump seal, cush drive rubbers and worn clutch lever pivot. Considering the kms and the price I have no issue with these minor wear and tear problems. Mine's an orange one with IXIL pipe, Eagle low screen, tail tidy, bars changed to Renthal as not happy with the standard ones and Oxford heated grips for winter commuting. Currently have Michelin Road Pilot tyres which seem pretty good bar the front being a little noisy due to all the cross siping however small price to pay for good wet weather performance. I've found the speedo to be a bit inaccurate with GPS at 100km/h speedo shows 110-111 km/h.