Join Date: May 2013
Location: Nakhon Si, Thailand
I've owned lots of older, high mileage bikes and rarely had to get a new clutch.
As long as it hasn't been abused, it should last a very long time. On a bike with <20K km I wouldn't worry.
If the clutch slips, I'd check the adjustment first, maybe somebody tightened it up too much.
There must be something seriously wrong before I pull the clutch and start checking the thickness.
current: CBR500R, CRF250M, MSX125, Yamaha Nouvo 135
previous: CB360, CB450SC (2), VT500FT, XS650 (3), Virago 750, Intruder 800, XJ600S, Intruder 1400, K75S (5), K100RS (5), ZX9R, KLR250, XR650L, DR650SE, Ninja 250, VTR250 (2), CBR150R (3), AX-1