Just put new clutch plate in (1981 R65/ 150k) so thought as well to put on new rubber gaitor . Sent to Motorworks and fitted same.Leaking oil on rear bottom rubber joint,Took of/cleaned /silicon fitted again still leaked .Sent to Sherlocks did same/ fitting same problem....no chance of sealing.so found my old gaitor,different type of rubber,softer more flexible,put on no problem! Were the other gaiters after market rubbish ,they were thick and stiff and no chance of sealing oil in. Anyone else had this problem?