Stiffen forks - springs - not dampening - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 11 Old 10-01-2014, 11:00 AM Thread Starter
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Stiffen forks - springs - not dampening

Does anyone have knowledge of an aftermarket set of (maybe progressive) fork spring to stiffen the OEM spring? I am not talking about changing the fork oil to harden the dampening.
Thanks
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post #2 of 11 Old 10-01-2014, 11:57 AM
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I have looked around before and haven't seen anything, even looked recently, no luck.
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post #3 of 11 Old 10-01-2014, 12:00 PM
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Might PM Gears.....

When they were getting ready for the salt flats he indicated his son was noticing the same POGO I was seeing in the front end. Though pogo is usually fixed with oil.

Never heard it they ended up changing the springs or not. Don't remember a vibration problem so maybe not.

He is good about answering PMs.

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post #4 of 11 Old 10-05-2014, 07:37 PM
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What is POGO? How does an oil change fix it?

Is is some type of vibration or oscillation which higher viscosity oil will fix?

Thanks
Joe
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post #5 of 11 Old 10-05-2014, 07:39 PM
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Ahhhh.... POGO as in oscillation and pogo stick behavior?
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post #6 of 11 Old 10-05-2014, 08:14 PM
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Originally Posted by Woodtoolgy View Post
What is POGO? How does an oil change fix it?

Is is some type of vibration or oscillation which higher viscosity oil will fix?

Thanks
Joe

Pogo is a lower frequency bounce of the front wheel caused by a dampening problem.

Vibration is a higher frequency movement felt in bars generally

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post #7 of 11 Old 10-09-2014, 09:36 PM Thread Starter
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Quote:
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Does anyone have knowledge of an aftermarket set of (maybe progressive) fork spring to stiffen the OEM spring? I am not talking about changing the fork oil to harden the dampening.
Thanks
Does anyone have knowledge of an aftermarket set of (maybe progressive) fork spring to stiffen the OEM spring? I am not talking about changing the fork oil to harden the dampening.
Thanks
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post #8 of 11 Old 10-10-2014, 04:36 AM
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Does anyone have knowledge of an aftermarket set of (maybe progressive) fork spring to stiffen the OEM spring? I am not talking about changing the fork oil to harden the dampening.
Thanks
Yes we made a different damper and preload adjuster for the street. See attached flyer. We are working on the latest tests now and it will also be TUV approved ( i know you dont need this but here in Europe its important to have it )
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File Type: jpg streetfsflyer2.jpg (270.5 KB, 25 views)
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post #9 of 11 Old 10-10-2014, 12:29 PM
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@jrspkoster any idea what they will end up costing us? even if it's an approximate price?
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post #10 of 11 Old 10-14-2014, 11:10 AM
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@jrspkoster any idea what they will end up costing us? even if it's an approximate price?
price should be around 375 euro. Available from mid november
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