i bought a set of ceramic from boca in feb ran them all year. clean and lubed them after every event. they were like 36$ for 4 bearings but well worth it. just make sure you keep the bearing clean and lube but not too much beacuse you dont want any lube on the shoes or clutchbell that will create a lot of slipping and this heat. check your clutch bell if it looks discolorred because of excessive heat then something might not be set right.