Can anyone help me identify these fork springs?

949 Views 8 Replies 5 Participants Last post by Haas, Feb 11, 2009

Haas

Discussion Starter · Feb 5, 2009

I bought some used 2nd gen forks recently just for the straight uppers. They came with progressive springs in them that have no markings on them. I assume they're aftermarket, but I thought I'd ask because somebody might want them. They have a rough dull grey metallic finish. Probably the same as every other fork spring. I'll post a picture if somebody thinks is might help.

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wacky_woodchuck

· #2 · Feb 6, 2009

Not many progressive fork springs out there. Progressive (obvious), Wilbers and one other I forget...

Usually with progressive springs there is not a rating on them. You can find the specs if you know the mfg, but rarely do they stamp their name on the spring.

I'm willing to bet they are progressive brand springs. They are the most popular here in the States.

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30x26

· #3 · Feb 6, 2009

they could be stock springs. at least in italy every faired 2nd gen has dual rate springs. i don't know if it's different in your area.

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wacky_woodchuck

· #4 · Feb 6, 2009

Hyperpro is the other one...

US Spec bikes come with straight rate springs, regardless of year. 0.72 kg/mm (if I remember correctly.)

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RichDesmond

· #5 · Feb 7, 2009

wacky_woodchuck said:
Hyperpro is the other one...

US Spec bikes come with straight rate springs, regardless of year. 0.72 kg/mm (if I remember correctly.)

I just measured a set of first gen springs, .70. Dunno about the second gen stockers.

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wacky_woodchuck

· #6 · Feb 7, 2009

RichDesmond said:
I just measured a set of first gen springs, .70. Dunno about the second gen stockers.

Close enough...

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Haas

Discussion Starter · #7 · Feb 11, 2009 (Edited)

Thanks for all the responses y'all. Basically what I've learned is that since I live in NC, these are aftermarket springs, but there's really no way to know which ones. But anyway, here's some pictures in case someone cares.