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Progressive fork springs - cost?
- OKC_Kent
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Thanks
Oklahoma City, OK
78 KZ650 B2 82,000+ miles
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- Aloha Mr Hand Z1R
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I got Prog shocks there recently. Fork springs are next on the list.
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- baldy110
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The springs are still sitting on my shelf.
Anyone want them let me know. they are for the KZ650.
The best front end mod I have ever done was a fork brace.
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- RonKZ650
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321,000 miles on KZ's that I can remember. Not going to see any more.
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- rstnick
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I installed a pair of Progressive fork springs about 10 years ago and it made my bike handle worse.
I get a squirrly feeling sometimes, and I have Progressive fork springs. I found that when I changed my Fork Oil, I had no problem getting the top caps back on the fork tube. I did not have to commpress the spring much or at all if I remember correctly. This was with the front wheel off the floor.
Do the stock springs stick out of the fork tubes when the caps are off, and do they need to be pushed in to get the caps on?
I'm wondering if I need to add some spacers/collars in there to stiffen and make contact with the springs?
Rob
CANADA
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1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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- waterman
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- Jeff.Saunders
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I don't really like this approach by Progressive - but these days there isn't too many options for fork springs and I guess it allows them to have a handful of generic springs that will fit just about any bike with the right sized spacer.
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- rstnick
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Again, should the springs need compression to get the caps on? This is with the front wheel off the ground.
I get a wobble at high speeds and am wondering if the front end raises enough for the springs to get loose and sloppy?
Post edited by: rstnick, at: 2005/12/16 12:13
Rob
CANADA
Need a key for your Kawasaki? PM me
1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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- Jeff.Saunders
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These springs should be 486mm long and 25mm across
Normally, I've found it's an effort to push the fork caps down enough to get the thread on the caps to bite. You should have a fair amount of tension on the cap while fitting it - to the point if you let go of it, it would sail 15' - 20' across a workshop (been there and done that).
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- Jeff.Saunders
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Looking in the Clymer manual, it lists the following lengths for springs
KZ650-B1 477.7mm
KZ650-B2 & C1 485.0mm
KZ650-D1 522.0mm
Could your forks be off a different model?
When installing the springs, they usually sit just outside the fork tubes when starting to compress them - so you have to push them down about 1" to get the cap thread to bite.
Post edited by: jeff.saunders, at: 2005/12/16 13:47
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- rstnick
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As far as I know the forks are stock. I've had the bike since '84, but who knows what happened before that.
.
My front wheel come Spring:
Post edited by: rstnick, at: 2006/01/22 17:31
Rob
CANADA
Need a key for your Kawasaki? PM me
1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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- dkmk
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Northern Ontario
Zapp: "Kif, I'm feeling the Captain's Itch."
Kif: "I'll get the powder, sir."
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