Chain size help.

R

RandyWhite

New Member
I have already tried figuring out my chain size using the stickied chain size chart, but what I have doesn't fit any category. I took it to my local chain guy and he has never seen anything like it and does not have master links for it.

I got my kit from piratecycles, and it is supposed to have a "heavy duty chain (#415/#50)" chain in the kit. My chain measures;
12.7 mm (.5 inch) pitch
7.7 mm (.30 inch) roller diam
5.2 mm (.20 inch) inside roller width
3.8 mm (.15 inch) pin

Obviously this is not 415 chain. Can anyone give me the correct size so I can order a master half link (offset link) for this thing?
 
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I have a pirate cycle chain. they said it was a #415, and I have a #40 output gear. the cruddy chain doesn't really fit either of them. a lttle massaging and it "kinda" works...the #40 sprocket needed to be thinner, and deeper, for the rollers. AND the chain is rather spindly, and kinks very easily.(not HD in my book) belt drive is getting more appealling all the time!
 
I changed both of my bikes to #41, you can buy it at places that sell farm supplies. the tractor supply sells 10 ft. for 17$ three master links for 3$ 1/2 links the same.
 
I ended up going the same route. I found one place in town that sells half links but they didn't have 415. Ended up just getting the #41 links and a chain elsewhere.
 
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