Agreed, looking at the valve cover and the clutch cable end.It looks like a 500-4 or 550-4
That was my second bike. My first bike was a moped like this. I paid 10.00 for it. Two weeks paper round money. My first on road bike was a Suzuki X1.1st bike I rode was a 50cc Honda mini bike. I did a few circles, forgot where the brakes were and rode over an 3' embankment, but lived. This thing would have killed me.
That little monster would be a handful of scary on any highway, anyway.I'm out. No highway pegs.
Definitely a CB400F. Clutch cable and valve cover details nail it. And I've got one in the garage for comparisonAnd who said Honda wasn't interested in building a ST replacement?
Getting all nerdy about it.....as we do.....it looks like a CB400f engine too me.
Can I ride it after Sadlsor please.
Oops.
I've never heard of a Honda 450 4-cylinder.Even a CB450F that is serrriousley suicidal! Put my name on the list!