Is that with a smf? and what torque are you putting through it? I'm trying to get an ide of how much bedding in I need to do with mine that's been fitted to my new rebuilt engine as it's slipping on max torque with less than 30km on it.I have a south bend stage 3 endurance, clutch effort it easily doubled, but I like it. No chatter or slippage, even though my setup I'm only using half of its rated torque/hp. I was told by the vendor I purchased it from that it'll last a very very long time because of it being Kevlar and that I'm not pushing it so hard.