I bought echo sl not to long ago and I weigh the near side of 15 stone. I remember seeing the photo of the snapped crank but remember somebody saying burton had ran them fine for a while so that's why I took a chance getting a pair plus my trial-tech sl's were crap for frame and slave clearance. Can somebody find the topic with the snapped crank again as I have a suspicion that maybe the hole size is bigger maybe on the first ones and maybe has more square corners?