Fork Springs Comparison (Picture)

Here is a visual of the stock '09 front spring and its HyperPro replacement.
Terrific upgrade. Really improves the feel of the bike.

Could you develop a little more please :)?

Surely.
I removed the fork tubes (after removing the front tire, brakes and fender).

Then I popped off the fork caps, removed the old spring (the left one in the picture) and dumped out the old fork oil.

I filled the fork tube full of 10W fork oil up to 120mm below the top of the compressed fork.

Installed the new spring (the one on the right in the picture) with the tighter winds toward the top.

Then I put the fork caps back on, slid the tubes into the triple trees and re-installed the front wheel, brakes and fender.

Today's ride told me that I did the right thing. I really like the way it feels now. Much less sag, stiffer, yet not stiff, less nose dive while braking and the front tire feels more planted. Both on and off road.

What was the rough cost of the springs?

If I get a set, I'll do what they say, but I'm trying to figure out why it would matter which end of the spring went up?

Long story on the springs. I bought mine off eBay. Thought I'd save a few $$. But it turned out to be more of a hassle.
So, if you see the front spring kit on eBay for $185 and they say it sips f of NYC. Beware. Mine came in from Italy...by-way-of St. Petersberg Russia. Seems my springs were sent to Russia, and I received the Russian dude's Honda Hornet springs.
Normal pricing is about $225 (or so).

Agree on the spring orientation. I'm always about following the instructions though. I figure they state certain things for a reason and have (hopefully) tested various options.

For hyperpro give Klaus a call at hyperpro USA. He is great to deal with and I personally much rather support a true shop rather than some computer on eBay. And he ships from the good lo USA via jersey. Not Italy through Russia.

Thank's

A German Enduro magazine compared some springs available on the market.
Öhlins (linear), Hyperpro (progresive), Wilbers (progresive)

Wilbers got the best results in their test

Also they mention a Italian supplier for catrrige kit which I didnt knew before, it MUPO
http://www.mupo.it/moduli/prodotto_eng.aspx?ID=11&c=8&p=48

Thanks ... yours is the story of my life ....

Theoretically - as the coils compress they no longer function as a spring. Having them at the top means they remain as 'sprung weight', supported by the coils underneath rather than the dreaded 'unsprung' weight.

Or at least that's my educated guess...

I like it... but ... it makes my head hurt just a little bit ...

would you mind sharing that article of the german magazine?

Its not online, but if you PM me, I could email you snapshots of the article

I emailed the above company to get some more info on it including the price.... So far they responded that they have one US distributor here in California but not much else. Waiting on a reply, but a quick search turned up Lemick Racing. They don't show the cartridge kit for the 800, so Ill update when I hear back.

My local bike shop (and suspension specialist) quoted 985 Euros for parts and 210 Euros for labour & consumables

Do you mind sharing the address/contact?
- Am interested at getting a kit fro that price.

Well its just a small bike shop in Germany http://www.twowheel.de.... If you happen to be in this country... I dont think he speaks English or does international shipping.
He would order it from the German Importer www.zupin.de I guess.

I just recieved an email back from Wilbers...

"Yes the Wilbers progressive fork springs for your USD fork is very popular so we keep them in stock. they have a slightly higher initial rate but still rides nice over the little bumps, then it ramps up progressively when you grab a handful of front brake to reduce nose dive. We've had excellent feedback from customers and even BMW dealers are buying them from us now. Wunderliche is also selling it under their own name (at a higher price) the springs have a great reputation.
Let me know if you'd like a set, they sell for $119.00/set. Not on our new shopping cart yet, but soon. You can buy over the phone or you can send us a Paypal and do it through email if you prefer.

Thanks for the inquiry!

Best regards,


Ted Porter

Ph: 831-438-1100 ext 113
Cell: 831-420-7776
Fax: 831-438-1104"

Just installed the Wilbers progressive springs with 7.5 weight oil.

Amazing difference and I just did a small ride around the town. No dirt yet. No brake dive, and bike feels planted and far more controllable. I actually have confidence in it's handling.

Total price was only about $160... That's for springs, oil, shipping. Far cheaper than most mods and great results. Plus the install is fairly easy, took me a couple of hours.

Ted at beemershop.com(us seller of wilbers) was also very helpful.

Next up should be a new rear shock.

Sounds very similar to my set-up w/ HyperPro and 10w oil.