Is the same chain for 41 and 400?

Only if you shave the edges down a bit will the 40 chain fit on a 40 sprocket.

Will a 40 chain fit a 41 sprocket?The other way around is not possible with the #40 chain.The reason kart clutches fit either chain is the size of the sprocket.

Standard Roller Chain Specifications and Strengths

Different chain sizes are explained, no questions asked.The #40 sprockets are too wide.It's just a little bit heavier duty with a larger pin.

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