Shaving material off my 105 crankset
Moderator: robbosmans
Hello
I have a awful looking 105 crankset and i would like to change the looks to the better.
I was thinking to grind off the edges and smoothing them out making the crank easier on the eye.
This requires me to remove around 2mm of material on the edges. Do you think this will affect strengt much?
I will also change the chainrings to a simpler lighter type.
I have a awful looking 105 crankset and i would like to change the looks to the better.
I was thinking to grind off the edges and smoothing them out making the crank easier on the eye.
This requires me to remove around 2mm of material on the edges. Do you think this will affect strengt much?
I will also change the chainrings to a simpler lighter type.
I guess it depends how heavy you are to affect the stiffness of the cranks. But I guess 2mm wont be that significant. Would recommend grinding slowly, take it for a test ride before grinding again. Would be interested to see how you plan to grind it off
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This is a bad idea with hollow cranks. You don't know how thick the walls are.
A used set of 7800 cranks would be smarter.
A used set of 7800 cranks would be smarter.
yeah, i did some measurements, its way more than 2mm that needs to be removed for the looks i want. Even then im not sure if it will be good looking.
With new chainrings, the molested 105 cranks would be more expensive than a nicer looking set. I will sell the 105 crank, and is currently bidding on a Truvative Elita V1 crankset which looks more classic.
With new chainrings, the molested 105 cranks would be more expensive than a nicer looking set. I will sell the 105 crank, and is currently bidding on a Truvative Elita V1 crankset which looks more classic.
How did you measure the wall thickness of the hollow crank arm without cutting it in half? X-rays?
i don't know the wall thickness. My guess is that these edges are there because of design, and not strenght.
Altough, the grinding i planned will be too much for my comfort. I won't compromize safety, so a new better looking crankset is bought.
Altough, the grinding i planned will be too much for my comfort. I won't compromize safety, so a new better looking crankset is bought.
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- Joined: Fri Feb 10, 2012 4:27 pm
would be pretty simple to get an idea of reduction in stiffness. just find the polar moment of area change.
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