To batmoto, or stick with billet.

I believe you are confused Mark. Those two runs had the same wheel, only the cover was changed.

Then the labeling on the graph is wrong, eh?

Both say "BMC cover" and the wheel names are the only difference on the printout.

We either have a 57 HP cover or 57 HP wheel.
 
Then the labeling on the graph is wrong, eh?

Both say "BMC cover" and the wheel names are the only difference on the printout.

We either have a 57 HP cover or 57 HP wheel.


I think I'm confused too. I am quite sure however, the high hp. run was with a 3.0 cover and the only run with a 3.0 cover.
 
So they only lost 57hp by necking down to a 2.6" NADM-style cover? Pretty good.
 
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