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Old 01-19-10, 08:34 PM   #1
tadawdy
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Connector link compatibility

I've heard of people switching out the master link for a sram, wipperman, kmc, or whatever else they like, seemingly without regard for compatibility with the chain. I assumed it didn't matter.

Went to the LBS today, as I needed a new master link for a 10 spd KMC chain. He only had a SRAM Powerlock, and said he didn't think it would work. But it was only a few bucks, and I thought it would.

So who is right? Can I use the SRAM Powerlock with a 10 spd KMC chain? Are all these interchangeable, like I thought?
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Old 01-19-10, 08:44 PM   #2
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I think your LBS was correct. If you're going to use a master link (I don't) you need one that is no wider than any part of the chain. Most new 10 speed chains are 5.9 mm overall width.

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Old 01-19-10, 09:25 PM   #3
tadawdy
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Most new 10 speed chains are 5.9 mm overall width.
Just looked it up: SRAM 10 spd chains are supposedly 5.95mm, KMC 5.88mm. So, the Sram link should fit, but it will be looser than normal. 0.07 is probably within manufacturing tolerances, though...
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Old 01-19-10, 09:26 PM   #4
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If the Powerlock is for a 9-speed (it's gold) lotsa grief can come your way. SRAM claims their 10-speed Powerlock is only for use on their chains and is good for a one-time use.

KMC Missing Links are inexpensive, about $5, and reusable. When you get a chance, buy more than one.
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Old 01-19-10, 09:44 PM   #5
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Originally Posted by Davet View Post
If the Powerlock is for a 9-speed (it's gold) lotsa grief can come your way. SRAM claims their 10-speed Powerlock is only for use on their chains and is good for a one-time use.

KMC Missing Links are inexpensive, about $5, and reusable. When you get a chance, buy more than one.
Two LBS's in town. One open later. They only had the 10 spd SRAM link. I thought it might work, and it was cheap. I just wanted to use the trainer tonight, but my KMC link broke during cleaning.
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Old 01-20-10, 07:49 AM   #6
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You're looking at the wrong dimension. While the outside widths are all the same, the width across the inner plates is not. A SRAM 10 powerlock will fit SRAM or Campy UN chains properly. It's too narrow across the inside for any other brand. You want a minimum side clearance of .004 inch, but not much more than .008 inch.

What you need for a KMC chain (or Shimano or Wipperman) is a KMC 10 link, wipperman connex or Forster superlink, model 3. The model 4 superlink is narrower across the inside, for SRAM or Campy UN.
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