Is this a cracked rim????
05-21-14 | 08:07 PM
#1
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From: Houston, TX
Bikes: '76 Peugeot Mixte UE-18, Bridgestone 'Submariner' picklefork mixte, Bridgestone KABUKI picklefork mixte, TREK MT220
Is this a cracked rim????
Weinmann/Etro 622x15 alloy rim. Is this a crack or just a 'joint' in the rim? not very great camera. thanks.
05-21-14 | 08:21 PM
#4
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From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Actually both. The joint in this case is also a crack as it's not been welded together. 
Andy.
Andy.
05-21-14 | 08:26 PM
#5
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From: Houston, TX
Bikes: '76 Peugeot Mixte UE-18, Bridgestone 'Submariner' picklefork mixte, Bridgestone KABUKI picklefork mixte, TREK MT220
"Joint, absolutely, actually it's both". Means nothing to me. COME ON FOLKS, WHICH ONE? Be clear. Is the wheel damaged? Or just cosmetically odd looking. I've been riding on it and went to change tires and saw it. So really, lets have something exact. Can I use it or need to replace. thanks.
Last edited by rdlange; 05-21-14 at 08:45 PM.
05-21-14 | 08:55 PM
#7
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From: Novi, MI
Bikes: Franken-mountain bike, mid-90s Performance TR1000, 1990 Cannondale ST400
Yep, just the joint. I've got 2 sets of Sun Rhyno Lite rims, each of which has a visible joint just like that. They weren't very apparent at first, but as I put miles on the wheels they became noticeable. One wheelset has been retired to backup status, the other still being used on trails. With my 225 lb butt riding over rocks and roots, if it was a problem the rims would have come apart by now.
05-21-14 | 09:03 PM
#8
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
It's a joint.
Be real, you already knew the answer, but didn't take a moment to think.
What are the odds of a perfectly straight and square crack occurring exactly centered between 2 spokes opposite the valve?
Be real, you already knew the answer, but didn't take a moment to think.
What are the odds of a perfectly straight and square crack occurring exactly centered between 2 spokes opposite the valve?
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
Last edited by FBinNY; 05-21-14 at 09:06 PM.
05-21-14 | 10:59 PM
#9
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From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
As Francis says. Do you not recognize the smiley face after my post? A crack is a void/separation/gap/break (although not here) between two sides/ends/within a otherwise continuous piece. A crack can be intended or indication of failure. Andy.
05-21-14 | 11:38 PM
#10
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
I won't make any cracks about joints here, though it's hard to resist.
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
05-22-14 | 12:31 AM
#11
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In some places, crack is illegal, while joints are legal.
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05-22-14 | 08:21 AM
#12
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From: Oxford, OH
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Two ways to join an extrusion. Pinning-like yours, or welding like this:
How Bike Rims Are Made | adventure journal
05-22-14 | 08:25 AM
#13
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From: SE MN
Bikes: Fuji Roubaix Pro & Quintana Roo Kilo
How, exactly do you think they make rims?
Two ways to join an extrusion. Pinning-like yours, or welding like this:
How Bike Rims Are Made | adventure journal
Two ways to join an extrusion. Pinning-like yours, or welding like this:
How Bike Rims Are Made | adventure journal
05-22-14 | 08:32 AM
#14
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From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
"Joint, absolutely, actually it's both". Means nothing to me. COME ON FOLKS, WHICH ONE? Be clear. Is the wheel damaged? Or just cosmetically odd looking. I've been riding on it and went to change tires and saw it. So really, lets have something exact. Can I use it or need to replace. thanks.
05-22-14 | 08:46 AM
#17
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From: Oxford, OH
Bikes: Waterford R-33, Madone 6.5, Trek 520
05-22-14 | 09:43 AM
#22
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From: Ffld Cnty Connecticut
Bikes: Old Steelies I made, Old Cannondales
As in how can we make rims that waste the most material ?
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Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
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05-22-14 | 09:49 AM
#23
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From: Middle of the road, NJ
05-22-14 | 10:02 AM
#24
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BikeForums is a joint where everyone is cracked!
=8-)
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5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life
