Well I have owned about 20 bikes over the years and 3 XT660s. Mine were all the X model and I still have my 2011 version, all bought new and serviced at Alf England (great support). I have had zero problems with the 3 bikes and the latest one is now over 28,000 kms. Forget the horror stories, these bikes are bulletproof.

__________________
(Now sold on, sob) 2011 Blue XT660X with gold wheels, was 26,500 km.
Engine mods: K&N Stage 1 filter, DNA Stage 2 filter, snorkel removed, Kev fuel mod fitted.
Plus: smoked Puig screen, Yam aluminium sump guard, Yamaha / Acerbis handguards, Givi Trekker aluminium side cases, Leo Vince X3 cans plus Kev front fork mod and Fender Xtender. Just fitted Michelin Road Pilot 3 tyres.

SOLD the XTX for a Super Ten 1200. And just bought a Raptor 700 so staying on here for some tips....