The Crank is a very important part of the bike. It's what the pedals are attached to and what ultimately propels you forward.
The original crank on my bike was fairly flimsy and would bend whenever I put large amounts of pressure on it. It also wasn't completely parallel with the freewheel on the hub so the chain would make this very annoying noise whenever I was riding it.
The new crank that I was buying is a Shun messenger crank. It has 46 teeth as did my original crank. I was trying to stay with the same gear ratio because I was very happy with the hardness and speed on the original crank. Don't mess with perfection.
A few problems arose when I received my crank an put it on. The crank was further from the bottom bracket than I thought it would be so it was even less parallel to the rear freewheel cog. This made the noise much louder which was not what I wanted. This crank however was able to be removed from the sprocket so it was in two pieces. I was able to remove the sprocket and screw it in on the other side of the crank arms. This was a near perfect solution. It did make the noise much quieter than the original crank, but there still was a noise. Oh well...
The crank has been a very smart investment in my bike. It makes it ride
Much smoother, it is much more solid, and it is very cool looking. Adding some very clean lines to the bike.

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