I have an '02 CRF. Two weeks ago, as I was leaving the pits, I noticed the clutch lurching. I never noticed any change in performance on the track. I am not a clutch abuser. I have never had any trouble with clutches before. This week I tore the clutch down. The plates looked ok. The basket fingers were a little notched on the drive side. And, to my surprise, the inner hub had tons of cracks in it. The cracks were in the back of it. If you hold the hub up and look at the splined side, the cracks are in the bottom. None are visible in the disk area. When you flip it over they are all over in the back. Most of the cracks are in the radial direction. Like the thing is about to fly apart. I have ordered a new stock one from Honda. (Much cheaper than Hinson.) Has anyone else had any trouble with this on their bikes of any manufacturer? Even the Honda places I talked to said that it's maybe a once a year item for them. No one stocks it. I'm not totally convinced that the hub is the source of the lurching. I will buff out the grooves in the basket and flush out the gearbox well. Then I will put Honda oil back in it. I had just switched from Honda oil to AmsOil. Feedback?