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My bike has an e13 chain guide on the front chainring, and while swapping the chain recently, I noticed it rubs the chain pretty significantly in the lower (bigger) gears. Motor drag with the chain removed was nearly zero, but with the chain installed, it makes it seem like there's a ton in those lower gears. Seems like it could have an effect on range, or at the least make it easier to pedal with the motor off, or maybe allow use of a lower power setting. Even if it's only a 5-10 watt difference, that could add up on a long ride.
I didn't see any readily apparent way to adjust it, but some googling around has shown there may be spacers behind it?
Anyone else run across this issue? Did adjusting it make any noticeable difference in range or power level use?
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I didn't see any readily apparent way to adjust it, but some googling around has shown there may be spacers behind it?
Anyone else run across this issue? Did adjusting it make any noticeable difference in range or power level use?
.