2007 KTM 640 LC4 Enduro

The 2007 KTM 640 LC4 Enduro sits at the top end of KTM's thumper-based offroad lineup, built for riders who want a single-cylinder enduro machine that can still handle real distance between trailheads. This is a big single in the classic sense — tall, lean, and built around an engine that delivers its character through low-end grunt and a willingness to rev when asked. It rewards riders who know how to manage a chassis under load, whether that's technical singletrack or long gravel stretches between towns, and it's not a bike that flatters hesitant inputs. Ownership means staying on top of valve adjustments and clutch wear, standard maintenance for a high-compression single pushed this hard. The 2007 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 2006 example should focus on mileage, service history, and condition rather than spec differences. The typical buyer here is an experienced offroad rider, often someone transitioning from a smaller two-stroke enduro bike or looking for one machine that can handle both trail duty and longer adventure-style rides. Collector interest remains low, so this is a using motorcycle, not a garage piece.