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Old 09-05-09, 04:01 PM   #1
heavyMetal
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2nd Broken Spoke - Now What?

I broke a spoke on the drive side of my Eurus RW about two months ago. It was $17 for a replacement. Yesterday I found that I broke another drive side spoke. Should I just replace the broken one, or all spokes, or just drive side? This could get expensive.
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Old 09-05-09, 04:13 PM   #2
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I broke a spoke on the drive side of my Eurus RW about two months ago. It was $17 for a replacement. Yesterday I found that I broke another drive side spoke. Should I just replace the broken one, or all spokes, or just drive side? This could get expensive.
If you've broken two spokes in short order, I'd recommend replacing all of them. It's likely that they were not tensioned properly from the beginning and they've all fatigued. If you replace just one, you may be replacing them again and again.

The Eurus is an interesting design- 21 spokes with 14 on the drive side and 7 on the non-drive side. It appears to be quite light for a minimal-spoke wheel which leads me to believe that it might not be the right wheel for you and your typical riding. How much do you weigh and what kind of riding is this for?
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Old 09-05-09, 04:25 PM   #3
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Sounds to me that the wheel wasn't properly tensioned and stressed. Where were the breaks in the spokes - near the hub? Or near the rim?
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Old 09-05-09, 06:57 PM   #4
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If you've broken two spokes in short order, I'd recommend replacing all of them. It's likely that they were not tensioned properly from the beginning and they've all fatigued. If you replace just one, you may be replacing them again and again.

The Eurus is an interesting design- 21 spokes with 14 on the drive side and 7 on the non-drive side. It appears to be quite light for a minimal-spoke wheel which leads me to believe that it might not be the right wheel for you and your typical riding. How much do you weigh and what kind of riding is this for?
I weigh 185; I usually do anywhere from 30 to 80 mile rides (not racing), usually involving climbing (28,000 ft last month). I've had the bike & wheels two years; I just recently started getting spoke noise which coincided with me riding more aggessively, out of the saddlle more while attacking hills. The first spoke broke in just that situation.

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Sounds to me that the wheel wasn't properly tensioned and stressed. Where were the breaks in the spokes - near the hub? Or near the rim?
Both were near the rim.

Last edited by heavyMetal; 09-05-09 at 07:01 PM.
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Old 09-05-09, 08:44 PM   #5
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You can't tell **** from 2 broken spokes. It's possible that the repair on the original spoke neglected to check the entire wheel for proper tension.
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Old 09-06-09, 03:34 PM   #6
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Loose spokes usually break at the hub, especially on the non-driveside.
Is it possible that the rim has been damaged?
Is it radially true "well-rounded" ?
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Old 09-06-09, 05:35 PM   #7
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Spokes are a buck or two at your LBS. Measure your spokes, buy a few spares and a spoke wrench and replace the broken one. If you get several more in a short period of time, get the wheel rebuilt or replace it.
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Old 09-06-09, 07:01 PM   #8
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Loose spokes usually break at the hub, especially on the non-driveside.
Is it possible that the rim has been damaged?
Is it radially true "well-rounded" ?
No damage that I can see. Haven't hit anything or rolled through any pot holes.

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Spokes are a buck or two at your LBS. Measure your spokes, buy a few spares and a spoke wrench and replace the broken one. If you get several more in a short period of time, get the wheel rebuilt or replace it.
I wish. These Eurus spokes are $17 a pop.
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Old 09-06-09, 07:16 PM   #9
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Spokes are a buck or two at your LBS.
Not these. This is one of Campy's boutique wheel sets listing for close to $1500/pair. You don't repair these with $1.00 plain spokes. However, at that price and from Campy, I think it's reasonable to expect the spoke tension to be spot-on as delivered.

After two years and at your weight, I'd either have the entire wheel relaced (assuming it can be done) or replace the wheel with something more conventional and less expensive.
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Old 09-06-09, 07:26 PM   #10
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Not these. This is one of Campy's boutique wheel sets listing for close to $1500/pair. You don't repair these with $1.00 plain spokes. However, at that price and from Campy, I think it's reasonable to expect the spoke tension to be spot-on as delivered.

After two years and at your weight,
I'd either have the entire wheel relaced (assuming it can be done) or replace the wheel with something more conventional and less expensive.
You mean the spokes, right? There should be nothing wrong with the hub and rim.
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Old 09-06-09, 09:05 PM   #11
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The good news is that I found a complete set of spokes for $127.45 here.
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Old 09-06-09, 11:58 PM   #12
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Eurus spokes

$130.99+ free shipping
http://aebike.com/page.cfm?pageid=30...ils&sku=SP9001
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Old 09-07-09, 06:50 AM   #13
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You mean the spokes, right? There should be nothing wrong with the hub and rim.
Correct. Inspect the rim for brake track wear and damage but if it's in good condition, by all means reuse it. Same with the hub. If the flanges and bearings are good, it's fine to reuse.

Ahhh, the joys of boutique wheels. $130 just for spokes!
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Old 09-07-09, 07:42 AM   #14
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For $130, I could just about get an Ultegra hub, Mavic Open Pro Rim, and 32 DT Swiss Competition spokes. After building it up properly, I wouldn't have to worry about the spokes for a very long time.
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Old 09-07-09, 09:30 PM   #15
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Do you have aluminum or steel spokes? I'm guessing aluminum?

cdr
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Old 09-07-09, 10:23 PM   #16
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There are aluminum spokes? Oy.
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Old 09-08-09, 12:30 PM   #17
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Black anodized aluminum.
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Old 09-08-09, 12:59 PM   #18
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I am no wheel expert but aluminum spokes and a small spoke count carrying 185#. I am guessing that you are lucky the wheel has lasted 2 years. I would think that your wheels should only be used on special occassions and not for everyday training. I bet they sure ride nice though.
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Old 09-08-09, 01:14 PM   #19
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They do ride well. I split mileage between two bikes, so that's a factor.
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Old 09-08-09, 01:48 PM   #20
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Aluminum spokes sound incredibly insane. I wouldn't use anything but steel spokes with brass nipples. I've had bad enough luck with steel and aluminum nipples. I was a wheel builder many years ago, and call me old fashioned, but I can tell you what works best.
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Old 09-08-09, 03:20 PM   #21
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The odd wheel spoking is a ploy to seel new and improved junk. There is no substitute for a 32 or 36 spoked wheel, 3X, with 15-16 guage butted spokes. Drive side tensioned to at least 110kg measured on a tensiometer.
When the rim wears out from braking if you live in the mountains then you only need to replace the rim. The SS spokes will last 100's of thousands of miles and the hub the same if properly cared for.
Boring but reliable.
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