Quote:
Originally Posted by GeeTwo
As the tube constrains the chain, there is a much greater tolerance for chain slack. You may get backlash, but if the tube fit is tight enough, the chain can't come off the sprocket unless it breaks.
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Inside a 2" tall x 1/8" wall extrusion, this kind of chain retention only happens when using 17t sprockets. 2363 uses 16t sprockets. There are different reasons why our chains don't come off the sprockets.