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Wheel rim issues

Old 10-23-12, 01:33 PM
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Wheel rim issues

Evening guys.

I've got an issue with my winter bikes Rims being worn out, The wheels are 2007 Aksium race, which have been so bomb-proof it's unreal. They've done everything from Commuting to work with a top bag, weighing in at 39lbs, to running on the winter chain gangs. As a package wheel i can't begin to praise the hammer they've taken without ever running more than 0.5mm total lateral runout :-0. But now that they have folded over, its time to admit defeat :-(

Anyway, Mavic are not keen on selling replacement rims to go on what are, Perfect hubs and bearings (Weekly cleaning and Oiling), so i'm now trying to source a 20 hole rim to suit. Looking on the Mavic website, it looks like the Open Pro rim fits the bill perfectly for rim dimensions, but these are not available in a 20 hole drilling (unless i've missed something).
Do any of the wheel building gifted amongst you have any idea of a suitable rim that would be compatible, as i cant see there not being a rim out there that will fit.

It's become more of a challenge now to try and re-use the Hub/spoke set than doing this to save the pennies.

Kind regards

Jay
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Old 10-23-12, 02:26 PM
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The range of rims has suffered from the shift to "component wheels" Mavic is the best example of this trend. They use to offer the widest selection of types and drillings. Now they understand the money is in selling you a new set of complete wheels. Andy.
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Old 10-23-12, 03:06 PM
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You may be tying one hand behind your back by limiting your choice of rims to those which will allow re-use of your spokes. Considering the hard use to which you have put the wheels it is difficult to know how much fatigue life remains on the spokes.

While I, too, like a challenge and do not always do the financially practical thing you may find it a better use of your energy and money to buy a new set of wheels than to knock yourself out finding rims allowing re-use of the hubs and spokes. If the hubs are really nice you may be able to recoup some of the money by selling them.
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Old 10-23-12, 03:09 PM
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If you can establish the erd (I think that's the term) you could compare to rims by Velocity, Kinlin, DT etc. You might need to do some research because I think Mavic might measure differently than some. You could also look for a donor set of the same wheels. I recently got what seems to be a lightly used set of Aksiums from CL for $75. That's about the cost of one Open Pro rim.
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Old 10-23-12, 03:42 PM
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Originally Posted by shelbyfv
If you can establish the erd (I think that's the term) you could compare to rims by Velocity, Kinlin, DT etc. You might need to do some research because I think Mavic might measure differently than some. You could also look for a donor set of the same wheels. I recently got what seems to be a lightly used set of Aksiums from CL for $75. That's about the cost of one Open Pro rim.
yes, that's the term. Effective Rim Diameter.
i found this thread from a quick google search. https://www.bikeforums.net/archive/in.../t-356570.html

here's the relevant info:
Aksium seems to have the same profile as a CXP22S rim.
Mavic spoke support diameter 596+3=596 should be your ERD.
278mm front spokes.

https://www.tech-mavic.com/tech-mavic/technical_manual/data/docs/products/2_41.pdf
https://www.tech-mavic.com/tech-mavic/technical_manual/data/tech-mavic/uk/sources/Produits/ROUTE/Jantes/2003_Road_Rims/2003_News.pdf
since it's your winter bike, i would probably suggest sending these hubs back to mavic to get them rebuilt with new rims (yes, you can do that and yes, it's somewhat expensive, but still cheaper than new wheels) and use them as nice weather wheels (assuming you don't already have a set of nice weather wheels). get a wheelset with sealed hubs (ultegra hubs are pretty much the go-to around here if you're going to be spending money. deore lx if you have MTB frame spacing), use double butted J spokes (normal shape), and a rim that's stout, but not super expensive to replace (because you're probably going to have to replace it a few more times if you keep riding in the winter). velocity dyad, alex adventurer, sun rhyno lite, etc for the rim.

Last edited by Darth_Firebolt; 10-23-12 at 04:01 PM.
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Old 10-23-12, 06:20 PM
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As much as you liked your Aksiums it is probably more economically attractive to buy a complete new wheelset. I have a pair of Shimano WH-R501 wheels on my Surly Cross Check rain/beater bike. They have been excellent and they are subject to nothing but abuse with every ride. They aren't the lightest set out there (~1900 gms/pair) but the 24 mm deep rims are very strong and the relatively low spoke count (20F radial/24R 2X, bladed) has never been an issue. The hubs are Tiagra level and easy to work on and durable.

Here is one source and shipping should be free at the price: https://www.wiggle.co.uk/shimano-r501...cher-wheelset/
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Old 10-24-12, 02:10 AM
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I recently rebuilt an old (2004) Mavic Ksyrium Elite and had no troubles whatsoever getting a rim. Got the article number from Mavic tech site, called one of the better bicycle shops in the area and hade them order one for me. Delivery time one week. One rim was about 20% of the cost for a new pair of wheels. Worked for me, as I was replacing due to spot damage, but would have been questionable if I'd needed two new rims.

Only thing that annoyed me about that exercise was that there's a perfectly good serial number on a label on the rim, which was of no use whatsoever when trying to identify which replacement rim to order.

I tried finding another rim with the same ERD first, but eventually gave up. But inf you continue down that route, measure your ERD, don't guess, or trust listed values.
It'll take some money and effort either way to get that wheel sorted, you don't want to have to abandon that project half through.

And it's a 20-spoke, so it'll run some seriously high tensions. It is highly advisable to have a tensiometer at hand when you're building this. If you're used to working on 32/36-spoke, your muscle memory of what's about right is going to be way off.

Last edited by dabac; 10-24-12 at 02:13 AM.
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Old 10-24-12, 10:30 AM
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Originally Posted by dabac
And it's a 20-spoke, so it'll run some seriously high tensions. It is highly advisable to have a tensiometer at hand when you're building this.
+1
The Park TM 1 at about $60 is a good investment. I assume you'll be using bladed spokes on these wheels.
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Old 10-24-12, 11:08 AM
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Originally Posted by dabac
But inf you continue down that route, measure your ERD, don't guess, or trust listed values.
This is a great example of how a misplaced comma can change the meaning of a sentence.

I think you meant to say "...measure your ERD, don't guess or trust listed values." If you leave the comma where it was, the sentecould be understood as "...measure or trust listed values, don't guess."

Last edited by LarDasse74; 10-24-12 at 11:47 AM.
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Old 10-24-12, 11:29 AM
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"sentecould"

A sentence that could be stated.

=8-)
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Old 10-24-12, 11:47 AM
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Originally Posted by mrrabbit
"sentecould"

A sentence that could be stated.

=8-)
IT is actually more commonly spelled centicold - getting just a little bit sick, like 1/100th of a cold.
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