Help needed--and the previous pic helps--we have an X challenge and the rear sprocket protector has shed its rearward mount--the front mount is nice and wide and still intact. The bike was purchased with a tie wrap doing the job of the bolt! getting a new part seems to be impossible and the only secondhand one I've seen has the same problem. I was thinking of adapting a generic part but life is complicated by the chain being on the "wrong " side! Fixing that rear eye looks difficult--and it may be easier to craft a complete one out of a thick bit of nylon sheet, or make a carbon/kevlar one, which I can do--using a flat sheet and spacers to get it set correctly--any suggestions gratefully received--I'd rather just bolt a replacement on.