hallo folks just serviced my bicke last weekend and while I was changing the oil in the dif I seen 5 heir line cracks on the plate wheir your back bracke disc is bolted to bickes done 36000 km but I am still runing on the original back pads I only use my front so it seems it might be a comon fault wurth removing your back wheel to check they told me to bring it in may be it will be repaired on a garentee uther wise I will fix it my self boot 200 is a new plate and you need a specal pully to remove it 
