Ktm Duke 640

The LC4 thumps like it's trying to shake your fillings loose below 3,000 rpm, then suddenly finds its legs and pulls hard all the way to the redline — it's an engine you ride around as much as with. That 880mm seat height and flickable 158kg wet weight make city riding genuinely entertaining, and the USD forks give real feedback through urban carnage in a way most nakeds simply don't. But let's be honest: the vibration is relentless on longer stints, the gearbox is agricultural on a good day, and early examples had oiling issues that could turn into expensive engine conversations if the previous owner skipped services. This is a bike you love despite itself, not because it's polished — and that's exactly why some of us still own them fifteen years later.

The Gen 2 Duke 640 cleaned up what the first generation started — the carb-to-injector-adjacent fuel tweaks smoothed out that notorious cold-start stumble and made low-rpm throttle response less of a lottery ticket. That 625cc thumper still shakes your fillings loose at idle and sounds like a diesel tractor at traffic lights, but once you're rolling, the torque hits hard enough at 4,000 rpm to make you forget every smooth-inline-four you've ever ridden. The revised brakes — better Brembo setup upfront — finally matched the engine's aggression, which was a real fix over the Gen 1's slightly underwhelming stopping power. Ergonomics are still uncompromising for anyone under six foot, but if the 880mm seat fits you, the upright, narrow package carves mountain roads with a precision that genuinely embarrasses sportbikes costing twice the money.