Do Harley's use Imperial (English) threads? Or are they metric too?

Question:
Rice burner riders are calling themselves 'Metrics' now. But I am wondering, do Harley's still use Imperial threads? I know the older bikes do. I am wondering about newer ones (last 10years or so).

Does S&S make the Super B Carb for harleys anymore?

Many Chevies and Fords use metric now, so I am wondering if the same is true for Harleys. Are all the fasteners all Imperial or is there a mixture? Or could they possibly be all metric?
Please answer only if you have a newer Harley.

Answers:

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they are a mixture...it makes me sad

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They never used Imperial. They used "American", that being different from the Whitworth thread on your Triumph.

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They are SAE.
That is Standard American English thread system.
There are a few metric screws on them like on the carburetor or fuel injection system but primarily SAE.
Only the V-Rod and the Street-Rod half Metric and half SAE.

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What motorcycle should I get?

SAE & metric

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both SAE (Society of American Engineers) and metric, it depends where the part was made.

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for example, engine mounts are SAE because they were made in the US...brake calipers are metric because they were made in Japan by Nissin.

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I don't think any bolt is made to Imperial Standard.

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So due to this 50% metric and 50% SAE should we change the name from Harly to HALFMETRIC?

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SAE baby! That means "english." Well it really means Society of Automotive Engineers, but you get my point.

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There are *some* bolts that are metric though, on components that are made overseas... like the forks on my Wide Glide.

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