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Old 12-12-2021, 06:29 PM   #8
Keith Seymore
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Join Date: May 2009
Location: Motor City
Posts: 9,158
Re: Proportioning valves

Quote:
Originally Posted by 67 twins View Post
If it were that simple the OE's would use one part number for everything.
Correct. Each unique part number was tuned for meter/split point/rear wheel pressure slope based on vehicle weight, CG location, wheelbase, front disc (or wheel cylinder diameter), rear wheel cylinder diameter, friction material, etc.

Releasing one size to fit all is like having one carburetor (and tune) to cover all engine applications.

K
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