I lost a mirror once, too. the motor vibes a lot so it kind of mandatory to check your bolts every few hundred miles. my clutch cover bolts keep loosening up causing oil seepage. i was told that ktmna is now telling their techs to use 5nm more torque than what is listed in the service manual. also don forget to keep an eye on the rad cap. when summer comes and your bike gets hot, it can loosen up. My rc is in the shop right now for the ignition interlock system locking up the bike. i feel like ive had every single problem that i could have happen to my 2012. im dissapointed honestly, but i love the bike so much i keep looking past that.