I have owned (2) 2007 BMW Boxer bikes (RT & GS) and have often heard that this vintage is widely regarded as one of the most reliable and long-lived in the BMW lineage. I do all my own maintenance but I have never had to mess with the clutch on either bike. I hear a clutch replacement is not for the faint of heart or checkbook. My current ride (2007 GS) has just 24K mi on it and is top shape, but I have never heard anyone mention what the expected life of a gently ridden GS clutch should be. Hoping to hear from some 2007 (plus or minus) owners whose bikes have outlived their clutches, and at what mileage did that happen?