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Old 07-08-2008, 12:38 AM   #1
Storm OP
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Dented rim... To repair or not to repair?

Hi Guys,

Whilst out on the trail at the weekend, I hit a decent sized rock whilst doing about 45mph, and this was the result:





It's the front wheel of a XChallenge. So what do you reckon? Repair, replace or leave it alone? It doesn't appear to be affecting the handling or the wheel balance.

Thanks in advance,

Storm
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Old 07-08-2008, 12:45 AM   #2
markjenn
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I wouldn't ride indefinitely like that. A good wheel repair place should be able to fix it.

- Mark
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Old 07-08-2008, 02:44 AM   #3
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Quote:
Originally Posted by markjenn
I wouldn't ride indefinitely like that. A good wheel repair place should be able to fix it.

- Mark
Problem is, not a lot of wheel repair places around here... I was thinking I might give it a tap with a rubber mallet, see if I can get the ding out, then re-tension the spokes. If I screw it up, I'll get the wheel re-built.
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Old 07-08-2008, 03:48 AM   #4
AndyBee
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wheel rim

While I'd agree that you'd be best to get it sorted in the long run, I got a very similar ding on my front wheel in Mauritania last year and continued (as I had no other option) all the way to Namibia with it like that - so I wouldn't worry unduly. I tried a rubber mallet to fix it without any noticable result. I wouldn't try anything much harder or you'll turn a small ding into a big crack or gouge!

As long as you've retensioned your spokes (the ding will have loosened some and tightened others) then, if the bike rides okay you should be fine.

If you are still in the UK (agree, it's hard to find good workshops these days) then at least you have an excuse for a shiny new Excel rim next time you are feeling flush

Cheers,

AndyBee
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Old 07-08-2008, 04:46 AM   #5
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Just checked with my local dealer - 363.00 inc VAT for a new front wheel, or 178.00 inc VAT for just a new rim. I think that the Excel option may be a good one!
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Old 07-08-2008, 05:13 AM   #6
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You can give relacing the rim a try, it's not rocket science and goes pretty well as long as you tension the spokes SLOWLY a little at a time. Use a trueing stand (you can make one yourself) or a balance stand with a runout guage clamped to it (that's what I did).

Last time I laced up a set of wheels I think I spun the rims about 20 times getting the spoke tension and truing correct. It's a slow process, but you can watch TV or talk to the wife while doing it.

-Tom
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Old 07-09-2008, 10:40 AM   #7
toofast4uu
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I wouldn't worry about it too much...I ridden rims bent much worse then that for 2500+ miles...(Basically the entire time I owned the bikes)

Just keep an eye on the spoke tension, and adjust as necessary...
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Old 07-09-2008, 12:44 PM   #8
TooFast
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I've ridden thousands of miles with rim dings bigger than that. Who knows, you might get another one next ride and ding another new rim. I even tig weld minor cracks
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Old 07-09-2008, 12:51 PM   #9
NSFW
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I bent the front Excel on my 640A in 2 places. Luckily, we have a hydraulic press here where I work. I was able to straighten them within .045 inch.

The rubber mallet will just bounce off, tried it already. You can not use impact force to fix it, be gentle and use the right blocks and spacers.

Good luck.
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Old 07-09-2008, 12:53 PM   #10
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Upgrade the front wheel to an A60 Excel/Takasago and you'll be better off in the long run. Much stronger wheel by 60% over the standard Excel that's on there now. However they do not make an A60 in the same color treatment as the BMW's goldish color. For that matter there is not one aftermarket company that makes a matching color to the BMW XChallenge or HP2's.
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Old 07-09-2008, 01:14 PM   #11
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Would ya ...

wear a dropped helmet with a sticker over the dent?

Never ride on a straightened wheel, plain and simple. Ever have a wheel let go in rush hour traffic?

+1 I say upgrade too.

Someone said/posted just before I did (a great indicator) went something like next ride could be it ... I did not need to hear anymore!
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Old 07-09-2008, 01:21 PM   #12
Ramata
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Quote:
Originally Posted by h8chains
...we have a hydraulic press here where I work. I was able to straighten them within .045 inch.

The rubber mallet will just bounce off, tried it already. You can not use impact force to fix it, be gentle and use the right blocks and spacers.

Good luck.
This is te best course of action to repair your rim, and if you can`t have access to a hydraulic press, you can take the lip of the rim with a descent size crescent wrench and force it back.
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