I've been out of riding for 8mths now and want to get another bike early next year so the search for a replacement and it's reliability starts now. At the moment the bike I'm eying is the new Duke690 which has a large 70hp single cylinder engine. I've heard that singles can be rough on tyres, chains and sprockets but what about the engine how strong and reliable are they. Basically do singles have a bad rep or good rep with engine reliability. I haven't test ridden one yet and will hold off actually test riding bikes until I'm in a position to purchase. I'm just curious on how a bike like the duke690 compares to my old bike a 2009 z750 anybody ridden both or similar bikes.