Narrow, Fits Most Aluminum 219 and 35 Chain Sprockets, For 4mm (5/32") Thick SprocketsLine up your rear sprocket with your drive sprocket in seconds!Does Not Work Well with a rear sprocket guard, also does not work with plastic Extron or shifter sprockets,
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Narrow, Fits Most Aluminum 219 and 35 Chain Sprockets, For 4mm (5/32″) Thick Sprockets
Line up your rear sprocket with your drive sprocket in seconds!
Does Not Work Well with a rear sprocket guard, also does not work with plastic Extron or shifter sprockets, for flat aluminum sprockets only
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