Input shaft

[illushinz]

Whats the normal size of the input shaft? I see the Vannys listed with a bunch of sizes, and some tapered, some straight....

 

[Nubs]

it depends on the model and HP, 16/20 is 1" 23HP are 1", 1 1/8, 1 1/4 and generator taper. some 14/16's were m30 taper but not many.

 

[illushinz]

Hmm, a little more to that than I expected. So if I was shopping a BB upgrade, would I be looking for a specific shaft size?

 

[kevinandrew]

a one inch shaft would be ideal, because then you could use a lot of different easy to get clutches, or your stock clutch with a tapered shaft adpter.