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Old Yesterday, 10:28 AM   #1
PHXAdventure OP
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Tubeless 990 Adventure

Is there a good kit to convert KTM 990 spoked wheels to tubeless, If so will the Heidi K60s work well?
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Old Yesterday, 10:58 AM   #2
Rsquared
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I followed this guy's instructions and it's worked out well. I don't know about the Hedis though.

http://cyb.smugmug.com/Motorcycles/K...less/i-BjwM3St
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Old Yesterday, 11:27 AM   #3
Tobes2102
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I have Heidi's on my 900 adventure (tubeless). They do well. I have a Conti on the front, also tubeless.
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Old Yesterday, 12:01 PM   #4
Chuckracer
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Funny you should ask. I'm doing mine as we speak.

This is my second set of wheels I sealed. The first set I used the exact method in the link. Worked well but I learned that prep is everything.
This time around I'm using Loctite Superglue Gel in place of the Seal-All on the advice of a well known wheel builder and sealer. Much faster - Seal-All takes forever to set up. The final coat is still Household Goop.

For the record, both of these wheels had what I believe to be an Outex kit in them (bought the bike used) and both leaked. I'm re-using it as a mega rim band.

I rode the bike yesterday and without the heavy duty front tube in there (2 lbs), the bike is transformed. It handles better, turns better...does everything better. I also pulled one rotor and caliper a week ago (6 lbs), and as you can imagine, it's like a whole new bike now. I can even ride sand!!
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Old Yesterday, 12:23 PM   #5
MortimerSickle
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I have seen several methods/materials posted for doing this. Most of them looked like they would work well.

However, on the advice of another inmate who had success with a simpler, cheaper method, I just went to Home Depot, and bought a good quality silicone sealant. After thoroughly cleaning the rim, I glopped some on each nipple, let it set overnight, then mounted the tire.

I have worn out three tires now, and have experienced no leaks. Each time I take off a tire I manage to damage the seal on at least one nipple. I just apply some more sealant to the spot- still no leak.

At first I tried duct tape over the sealant for protection, but it just came off and balled up. Now, I use only sealant.



BTW, I did only the rear, because I had heard that the stock front is not suitable for running tubeless.
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Old Yesterday, 12:51 PM   #6
Central Cali Rider
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Wow sometimes simpler is well simpler. The front is no biggie to replace a tube in the field for a flat. The rear I rather get a root canal then to try and replace a tube on the rear on the side of a trail. A plug would be so cool. I will have to try that method next set of tires.

Quote:
Originally Posted by MortimerSickle View Post
I have seen several methods/materials posted for doing this. Most of them looked like they would work well.

However, on the advice of another inmate who had success with a simpler, cheaper method, I just went to Home Depot, and bought a good quality silicone sealant. After thoroughly cleaning the rim, I glopped some on each nipple, let it set overnight, then mounted the tire.

I have worn out three tires now, and have experienced no leaks. Each time I take off a tire I manage to damage the seal on at least one nipple. I just apply some more sealant to the spot- still no leak.

At first I tried duct tape over the sealant for protection, but it just came off and balled up. Now, I use only sealant.



BTW, I did only the rear, because I had heard that the stock front is not suitable for running tubeless.
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Old Yesterday, 04:03 PM   #7
elron
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Question spoke adjustmets

Assume, any/everytime (though likely infrequently) that you need to adjust any spokes that nipple needs to be re-sealed?? Do you need to break/dissolve the seal first or will it give when adjusting spoke tension?
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Old Yesterday, 07:09 PM   #8
Chuckracer
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Yeah, that's the downside. This probably wouldn't be wise with brand new wheels. Some folks put little paper dots over the spoke nipple and under the sealant. That scares me a little. I don't really enjoy doing this and like the "overkill" method. I only want to do it once.
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Old Yesterday, 09:30 PM   #9
MortimerSickle
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Quote:
Originally Posted by elron View Post
Assume, any/everytime (though likely infrequently) that you need to adjust any spokes that nipple needs to be re-sealed?? Do you need to break/dissolve the seal first or will it give when adjusting spoke tension?
If using silicone sealant, probably no problem. It is pretty soft stuff, and should offer no resistance. Clean out the old sealant, and reapply.
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Old Today, 01:43 PM   #10
Skizzo
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I'm riding on a tubeless modified wheels from more than 50.000km.
No problems, no pressure loss, and the Heidy works flawlessly ;)
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Old Today, 02:06 PM   #11
MortimerSickle
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Originally Posted by Skizzo View Post
...no pressure loss...
I find it kind of weird that my rear tire, with the tubeless conversion, holds pressure longer than does my front, which still has a tube- a new tube at that.
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