This is a 10 foot #40 chain with 2 master links. The chain comes in a plastic bag and is heavily oiled to prevent rusting. The main links are in small pouches inside the larger chain link. So if you think you only have one, take another look inside the large bag and you'll likely find that the other main link is caked with oil. I removed some of the oil with a parts cleaner but there was still a little muddy dirt between the links. It doesn't seem to affect the performance of the circuit, so it suits me. All in all, it's a chain and it gets the job done. Measure your sprockets and if they are about 1/4 inch, this chain will probably fit better than the #40 chain since the #40 is about 1/16 inch wider.
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