I have a couple of old Clevelands at the shop, how would I identify
a
40-78 by sight?

Thanks, Bob K.

Good question. It's a 5 x 5.00 Cleveland wheel that has a smooth,
clean looking exterior on the flanges of the rim that hold the tire
bead. Total width inc disc is 5.155" or so, outer rim face to outer
disc face.

The older style (40-19 & company) has a pattern of indentations on the
exterior of the flange, making them look like classic aircraft wheels.
Both styles are held together with 3 bolts and share the same seals/
bearings...Total width on 40-19 is around 5.3"w/disc (just too wide
for my fork : (

BTW, my 40-19 is the unused 1/2 from a set. The other one went on an
HP-11 long ago...

Thanks!
-Paul