Sure hope this works. My QPD rear sprocket sharpened up and sliced 1/3rd of the teeth off the belt(3000 miles), leaving me stranded in the outback of Oz for three days while I organized a chain and sprockets to be flown to me. It took two years for QPD to replace them (warrenty). I then hard anodised the rear sprocket. Still rebuilding the bike at the moment, (watch this space), so don't know if this is a sucess yet
