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Old 08-31-2014, 09:02 AM   #1
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Question Help ktm dude needs f800 knowledge from the braintrust

Moved over from Orange Crush.

Gents,
Need some knowledge from the brain trust, might post on the Beemer side also. Have a friend coming through on long 'round the world ride with bent front 21 inch rim on his F800 GS. I have a brand new stock rim left over from the Caponard conversion I did last year, 2010 990 ABS. Any of you guys know if we can get his hub laced to this rim? Thought I'd ask over the weekend before trying Woody on Tuesday. Thanks in advance! Dave
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Schleprock screwed with this post 08-31-2014 at 09:03 AM Reason: Added comment
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Old 08-31-2014, 09:42 AM   #2
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Start by counting the spokes with a pessimistic attitude.

Then get a hammer and some wood etc and smash it straight as possible.

Easily bent, easily unbent. See what the Search button finds.
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Old 08-31-2014, 09:49 AM   #3
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Same amount of spokes

They are both 36 spoke rims.
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Old 08-31-2014, 11:51 AM   #4
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Google 'lace motorcycle wheel' for many how-to videos and posts. It's not hard. All you need is a spoke wrench. A truing stand is not an absolute necessity. Final truing can using the bike as a truing stand, by improvising a reference pointer close to the rim so that side-to-side and radial deviations are more visible.

+1 on Reaver's comment about hammer and wood block. I restored a TTR230 back rim, which when purchased resembled a potato chip, using such techniques. Not hard.
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Old 08-31-2014, 05:41 PM   #5
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If both are 36 spokes, that's a good start,

Second point would be what "index" or pattern if you will, that was used to drill the holes in that rim. Japanese or European?

BMW F800GS uses Jap Index for the Front OEM.

This has to do with what directions the "in between" spokes has from the hub to the rim compared to the others.

Never tried myself but as far as I know lacing a Jap index rim to a Euro index hub or Vice versa would not work very well...

From a quick google search it looks like the KTM 990 / 950 also uses Jap index for the front OEM but not sure. Also no idea what the Caponord uses, but if you are lucky it should work fine. (You are saying you have the stock KTM rim spare right? If so the chances are it would be fine.)

No problem re-lacing a wheel really if you have some sort of a "truing stand" and don't hurry the job... As mentioned above there are a bunch of good youtube videos on the subject.

you should find more info about the two different drilling patterns and visual examples to show how you can check witch one you have here:
http://www.advrider.com/forums/showt...php?p=20683084

Hope this helps.

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Old 08-31-2014, 08:38 PM   #6
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Thanks Per,
The KTM Rims are German Behr, so not sure on the indexing. I've been told if we take it into a wheel shop they can make spokes to fit. The Caponard conversion is taking the tubeless spoked wheels off the Aprillia Adventure bike and lacing the KTM hubs to them. Woody's did mine, not cheap, but the best thing I've done to the 999.
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Old 09-01-2014, 10:16 AM   #7
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Haha, the OEM BMWs are Behr as well so... go figure ;)

Still I think the most normal is to have JAP index front apparently regardless of the geographical origins of the bike.

Having looked some more I'm pretty sure your friend should be OK with the OEM KTM rim. Even with the stock spokes/nippel's if they are not too badly seized.

Just remember anti seize on the spoke threads before you lace up the new rim and thread on the nipples again. (or make sure the guy doing it doesn't skip that step.) makes for a lot nicer job if your firend wants to do any changes to it when he gets back home.

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Old 09-01-2014, 05:39 PM   #8
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German, Austrian German......It's all the same
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Old 09-01-2014, 05:54 PM   #9
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hey hey hey don't mix apples with oranges! I'm german and quite offended by your statement

Austria have got pretty bad publicity, their three most famous people are Hitler, Joseph Fritzl and Terminator.

whereas nothing ever bad happens in germany!
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Old 09-01-2014, 08:59 PM   #10
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I'm german and quite offended by your statement
Not when wearing your French Maid costume and seducing me you're not.
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