Sprockets Drive sprocket spacer

Gordy

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I had an Idea of spacing out my drive sprocket a bit to help with chain alignment. I have very little room to adjust for chain alignment, and I don't really feel like offsetting the engine. The alignment is only off a few mm, but since these hibs are so wide I can't really move the hub or my pedal chain will have issues. Would this be a good option for helping chain alignment?

I found a pre-made one, but I would probably make my own from a chunk of aluminum.
 
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I dont see how a spacer will work, that's a tapered shaft. Where is the shoulder that the washer will press against. My just my thoughts.
 
Having never seen one, from the picture it looks like the bearing seal doubles as a crank seal and the spacer contacts the inner race.
 
I dont see how a spacer will work, that's a tapered shaft. Where is the shoulder that the washer will press against. My just my thoughts.
I measured it with my caliper, there is a .3mm difference between the end of the shaft and where it is at the bearing.
 
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