Rode a few. Good in their time.
Bought one as a basket case / box-a-bits.
Spent lots of time putting it together right,
felt sorry for a bikeless "Mate" and sold it to him
at what it owed me without all my time and effort.
Tosser sold it a week later at twice the price...
I nearly pissed myself laughing when i found out the
check bounced and he couldn't trace the bike or buyer...
400/4's are a Cool bike and a little bit of history.