KDXRIDER.NET

Well, my front wheel bearings, fork rebuild kit and “fork tubes” came in! Maybe that is just an ad?
But how dare they not send any hp gaining stickers with the springs! Hehe
Now I’m going to have to find time to work all this into my weekend. What a drag...




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I thought you had bought new fork tubes before scrolling down far enough.

What bike are they for? 3647's?

They are for the 03 Kdx200
Yeppers, 3647’s
I’ve never had a set with spacers you had to cut on your own. Is that normal?


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Snapp200 wrote:They are for the 03 Kdx200
Yeppers, 3647’s
I’ve never had a set with spacers you had to cut on your own. Is that normal?

If springs are for conventional forks, then my experience is that they are sold that way. USD fork springs don't come with them, but do come with washers, in my experience.

Here's a bit more to put you to sleep.

"Modern preload theory" is very little preload. For example, Race Tech will show 4 mm. For years in the past, it was 10 mm.

If you measure the amount of preload on a stock 1995 - 2006 KDX200 / 1997 - 2005 KDX220R, I think it is around 38 mm. That is WAY more than even what Race Tech recommended for years. I used to have an excel file from someone who made it. It showed the amount of spring rate for how far the spring was compressed. With the stock springs (.35 Kg / mm rate), the initial travel was stiffer than a .43. It was not long before it crossed over though.

Anyway, cut the RT spacer to provide very little preload. DO NOT use the stock spacers (at least not without cutting them shorter).

The stock springs in a 1989 - 1994 KDX200 are just 0.30 Kg / mm. INCREDIBLE.

Jason wrote:

Snapp200 wrote:They are for the 03 Kdx200
Yeppers, 3647’s
I’ve never had a set with spacers you had to cut on your own. Is that normal?

If springs are for conventional forks, then my experience is that they are sold that way. USD fork springs don't come with them, but do come with washers, in my experience.

Here's a bit more to put you to sleep.

"Modern preload theory" is very little preload. For example, Race Tech will show 4 mm. For years in the past, it was 10 mm.

If you measure the amount of preload on a stock 1995 - 2006 KDX200 / 1997 - 2005 KDX220R, I think it is around 38 mm. That is WAY more than even what Race Tech recommended for years. I used to have an excel file from someone who made it. It showed the amount of spring rate for how far the spring was compressed. With the stock springs (.35 Kg / mm rate), the initial travel was stiffer than a .43. It was not long before it crossed over though.

Anyway, cut the RT spacer to provide very little preload. DO NOT use the stock spacers (at least not without cutting them shorter).

The stock springs in a 1989 - 1994 KDX200 are just 0.30 Kg / mm. INCREDIBLE.

Good stuff!
Thank you, Jason.
Yeah, most of my springs have been for the DRZ’s KLR’s and a Sportster.
A Klr was progressive and came with two precut spacers, the Sportster was the same if I recall correctly.
I think I remember cutting the drz’s though, now thinking about it.
They were all plastic/pvc as well.
These are metal.
Anywho, Im hoping to get around to putting them in this week and get on to moving to the next section.
She kicked over first kick today after sitting a couple days! Making me feel good so far!



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Another point on fork springs is that a certain size may fit a few bikes, so the spacer would be a generic size, cut to fit a few different models.

Jason wrote:Another point on fork springs is that a certain size may fit a few bikes, so the spacer would be a generic size, cut to fit a few different models.

[emoji30][emoji30]




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What's up with that??

Anyone else using Tapatalk and an iPhone??

I didn’t think about that! Let me log in standard and see if there is a difference.


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Ha! So I log in without the app and i see the pic. Its a stack of spring boxes.
Are those yours or a google search?[emoji15]
What’s funny, is my quote of your post shows up normal, but my screen shot is obviously of the warning.
At least I know it’s not me being under privileged. Lol


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That is odd. I don't know why it won't show up.

Yes, those are my springs. From those, I get how they usually are packaged.