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| Other tech issues For all other technical issues. Think frame, suspension, steering, brakes, etc |
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#1
08-20-2020, 08:55 PM
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Chain size question
I have a chain on a Manco kart that has no size markings on it. I have taken the measurements of the chain and referenced the chart on the BMI site.
This chart shows the chain is "420". When I look at sprockets etc. I never see parts indicating the are for 420. I see many for 40/41. 40 or 41 are very close to the same size as this 420 according to the chart. Do I just order sprockets that say 40/41 ? Not a big deal ? Thanks.... Last edited by kroger; 08-20-2020 at 09:00 PM. 
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#2
08-20-2020, 10:18 PM
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#420 chain is the larger/wider version of 40/410. Means it'll fit all 3 sizes of #40 sprockets. #40 sprocket is really thin/narrow, #410 is the next thicker size & #420 is the thickest. I owned a couple of Manco's and #420 is the chain you need.
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