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Took apart a set of 1974 CL450 shocks for a rebuild - these springs look like progressive springs? Just curious.
I'm rebuilding these and putting them on my 1970 build so that I have the better damper rod type shocks. I plan on buying new progressive springs.

Thanks

DW
 

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They look like the same springs in what I believe are 1972 CB450 that I just rebuilt and reinstalled. Had 30" "chopper" tubes and fount 24" tubes on eBay from a Japanese manufacturer. The springs fit just right.
 

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They look like the same springs in what I believe are 1972 CB450 that I just rebuilt and reinstalled. Had 30" "chopper" tubes and fount 24" tubes on eBay from a Japanese manufacturer. The springs fit just right.
Good call, this is the front shock off my '72 CB450K5. The same shock was used from '72 through 74. The same shock was used on the CB500F, but with a different spring.
 

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They are progressively wound. The tightly wound area compresses easily, while the top end needs more force. I don't really know of any major benefits of either standard springs or progressive ones - I think it's more of a preference of some people.
 
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