gosh this is a wide range. I was seriously looking at their 10/50 for my RR8 but ended up sourcing petronas FS 10/50. Their prices are good. Take it you are aware this is semi-synthetic and for cars
Comes recommended by MV members as an alternative to AGIP Racing 4T 10W/60. Some use the Valvoline in track bikes so I am confident it will perform under my 'pottering about' duress! Thanks very much for the heads up though. I did purchase purely on recommendation with reading specs and applications.
Opie's are on my doorstep, Guy is the man to speak to via phone, knows his oil and recommends what his best even if its cheaper...