A Manx with a single disc up front, would be lovely. Some people do not seem to know the importance of that. That tank-slapper topic was relevant - they usually begin when the front tyre is chirped. Kawasaki widow-makers usually had disc front brakes and hydraulic steering dampers - they were not just there for decoration. Resultant forces are usually calculated by addition of vectors. The biggest vector on a motorcycle is the one which passes through the centre of the front axle. It can flick the rider off the bike like a rag doll.