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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 01-11-05, 09:11 PM   #1
moosetoth
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KMC half-link pin too long?!

I just set up a KMC 1/2 link on my fixie and for some strange reason the pin (that was included w/the link) is longer than all of the rest of 'em in my chain. Both the chain and the half-link are "1/8" so I dunno what's up. Its also making the chain emit a weird noise. v.strange
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Old 01-12-05, 01:21 AM   #2
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Are the outer plates of the half link too tight on the inner plates of the regular link?
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Old 01-12-05, 07:10 AM   #3
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I had this happen on a ss setup. It was also 1/8". I was using a chain tensioner that had a bar (cage) around the pulley. When I added a half link the pin would rub on the cage part. I had to scrap the project.

For some reason they make the pin longer on half links.

I can't imagine where it would rub on a fixed gear setup. I am also thinking you have a tight link.

Where is the pin rubbing on the drive train?
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Old 01-12-05, 11:30 AM   #4
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Well after a day of riding the strange noise seems to be from the pedals creaking, not the new half-link, so that's good - I loosened it up a bit and that seems to have solved the problem. That extra long pin is still kinda odd lookin' and I'm wondering if I shouldn't just replace it with a regular pin once I put on a new chain.
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Old 01-13-05, 07:33 PM   #5
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I'm taking it you don't have the half link that has a drift pin thru it with a cotter pin in the end, yeah, yeah I'll take a photo...
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Old 01-20-05, 07:38 PM   #6
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Wow, put on a fully nickel plated chain today, inserted the half-link, and boy what a difference a little nickel makes No noise, clean, smooth, looks great, sans rust-affinity. OMFG, I can't believe I had to learn that lesson the hard way. I'm still curious as to what kind of link you're referring to...
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Old 01-20-05, 10:55 PM   #7
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A couple of pics of a cotterpin half link

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Old 01-21-05, 08:50 PM   #8
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Yep, certainly don't have that kind. Looks kinda cool though. What is the purpose of the cotter pin?
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Old 01-21-05, 09:14 PM   #9
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i only assume to make it easier to get on and off, i have one on my flatland bike(bmx)
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Old 01-21-05, 09:22 PM   #10
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I thought BMX drops (or "track ends") were plenty long so that you have lotsa room for adjusting.
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Old 01-21-05, 09:25 PM   #11
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they are, but i like to keep my rear wheel as far in as possible(shorter wheelbase)
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Old 01-22-05, 06:38 PM   #12
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those are the ones
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