CCM S5 config questions

[Chuck E Ducky]

They didn’t stick with the 11/16 valve long. Isn’t the SS25 the only one to get the 11/16 valve? I wonder what that is.

I never noticed much of a difference in valves especially on a pump.

[gabe]

The SS25 was in response to WGP suing everyone out of the autococker design so it would track they basically re-milled the bodies to a spyder spec and used 11/16 valves. WGP pretty soon went under and CCM was able to go back to WGP style 9/16 valve bodies.