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Durace crank problem

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Old 10-14-10 | 04:17 PM
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Durace crank problem
I was cleaning my bike today and have noticed this:



I don't think that this is normal
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Old 10-14-10 | 04:20 PM
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Not sure what you're referring to but if you're looking at the squared off teeth and such, that's normal. Chainrings have all sorts of weird angles, pins, ramps etc. to help shifting. Or am I missing it?
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Old 10-14-10 | 04:20 PM
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That's not a problem. This is a problem.

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Old 10-14-10 | 04:21 PM
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Originally Posted by dstrong
Not sure what you're referring to but if you're looking at the squared off teeth and such, that's normal. Chainrings have all sorts of weird angles, pins, ramps etc. to help shifting. Or am I missing it?
Yes, the teeth. Ok, then. Thanks for your reply
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Old 10-14-10 | 04:22 PM
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Originally Posted by patentcad
That's not a problem. This is a problem.

Holy!!!!
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Old 10-14-10 | 04:22 PM
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Originally Posted by patentcad
That's not a problem. This is a problem.

Not DA is it?
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Old 10-14-10 | 04:24 PM
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Originally Posted by dstrong
Not DA is it?
It was. It snapped like a cheap twig in a noreaster beneath the massive watts of Pcad's Mighty Guads.
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Old 10-14-10 | 04:25 PM
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Originally Posted by patentcad
It was. It snapped like a cheap twig in a noreaster beneath the massive watts of Pcad's Mighty Guads.
That'll leave a mark.
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Old 10-14-10 | 06:15 PM
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Originally Posted by dstrong
That'll leave a mark.
Naa. It'll buff out.
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Old 10-14-10 | 07:06 PM
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Wow the teeth on that crankset are so messed up!

I have an Ultegra crankset I will trade you for it if you want. I don't mind.
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Old 10-14-10 | 07:09 PM
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Old 10-14-10 | 07:26 PM
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Pcad. I don't know what Guads are, but if you mean the muscles of your thigh, then it should be Quads (as in quadricepts), or are Guads a BF inside joke........
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Old 10-14-10 | 07:32 PM
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Originally Posted by Schmadley
or are Guads a BF inside joke........
An Inside BF Ryan F Legend.
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Old 10-14-10 | 07:35 PM
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An Inside BF Ryan F Legend.
I miss that knucklehead. Razor is not quite as entertaining.
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Old 10-14-10 | 07:47 PM
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A new chain every now & again,

Is good!

Get as many miles out of your tires as you can, if that's your thing, but your chain buggers things up if you ignore it.
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Old 10-14-10 | 09:19 PM
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Originally Posted by Schmadley
Pcad. I don't know what Guads are, but if you mean the muscles of your thigh, then it should be Quads (as in quadricepts), or are Guads a BF inside joke........
BF inside joke.

OP - crank is fine. One of the reasons that Shimano cranks shift so well is because they actually take the time to engineer the teeth, lift pins and ramps to actually facilitate the chain coming up on to the ring. Often imitated - never duplicated.

If you would prefer all of the teeth to look the same then I am sure someone would gladly trade you a POS crank for your DA one. I am sure I have a few laying around if you'd like to switch.
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Old 10-14-10 | 09:25 PM
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Originally Posted by Psimet2001
BF inside joke.

OP - crank is fine. One of the reasons that Shimano cranks shift so well is because they actually take the time to engineer the teeth, lift pins and ramps to actually facilitate the chain coming up on to the ring. Often imitated - never duplicated.

If you would prefer all of the teeth to look the same then I am sure someone would gladly trade you a POS crank for your DA one. I am sure I have a few laying around if you'd like to switch.
Look closer,

Shark fins.
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Old 10-14-10 | 09:49 PM
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Originally Posted by Pilsley
Look closer,

Shark fins.
Again....I'll take it.

Just walked 10 feet into my shop and checked out the 8 Shimano cranks I had sitting there and all of them have what you are describing as "shark fins" in the vari-tooth ring design. Normal. Real shark fins are un-mistakable.
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Last edited by Psimet2001; 10-14-10 at 10:08 PM.
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Old 10-14-10 | 11:48 PM
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Originally Posted by patentcad
An Inside BF Ryan F Legend.
Ahh! That's the problem with being a relative newbie to BF.

Then Guads it will forever be!
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Old 10-15-10 | 07:48 AM
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Originally Posted by Schmadley
Ahh! That's the problem with being a relative newbie to BF.

Then Guads it will forever be!
And with massive guads, you can drope the hammer.
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Old 10-15-10 | 07:50 AM
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Originally Posted by dstrong
And with massive guads, you can drope the hammer.
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Old 10-15-10 | 08:13 AM
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Originally Posted by patentcad
It was. It snapped like a cheap twig in a noreaster beneath the massive watts of Pcad's Mighty Guads.
Is that bike an Ibis?
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Old 10-15-10 | 08:16 AM
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Originally Posted by patentcad
That's not a problem. This is a problem.

Looks like somebody dialed it up to 400w to drop a poseur.
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Old 10-15-10 | 08:21 AM
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Originally Posted by patentcad
That's not a problem. This is a problem.

Velo Vol can weld that.
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Old 10-15-10 | 08:26 AM
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Originally Posted by LAJ
Velo Vol can crazy glue that.
Fixed for GMZ Dollar Store reality.
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