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Old 04-24-07, 03:10 PM   #1
hotbike
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SRAM chain with power-link?

I'd been riding around with something wrong with my rear axle for a week or two.
I took the wheel off today and had the LBS take the freewheel off. (my mom took down the workbench and put the washer and dryer there, so I don't have a bench vise anymore).

I discovered there were only eight bearings in the race on the right side. The left had the full nine bearings.

I bought nine new bearings. I went to the next town and bought a can of WD40 at the hardware store, and cleaned the axle/threads.

I went to the bike pro chop in Oyster Bay (where I bought the bike five years ago) and bought a plastic hub protector to replace the broken one (also).

I paid twelve dollars for a Sedis - Sport chain.

I went back to my mom's house. repacked the bearings with Phil Wood waterproof grease.

Discovered the Sedis Sport chain wasn't long enough.

Nearing closing time, I went to the LBS (not the pro-shop), and asked for a chain.

The only chain they had was the SRAM, for $32 thirty two dollars!

I paid $32, checked to make sure the chain had the SAME NUMBER of LINKS-
(old chain was stretched, so it was longer, but had the same number of links)

And I put the SRAM chain on my bike, using the enclosed Power Link.

My question: Are these SRAM Power Links reliable?

It just goes on with ease, I wonder if it will fall off with ease, maybe while back-pedaling?
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Old 04-24-07, 03:13 PM   #2
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Originally Posted by hotbike
My question: Are these SRAM Power Links reliable?
Yes, very.
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Old 04-24-07, 03:15 PM   #3
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Oh, I just searched the forum and re-read the other thread.

I put a SRAM 9 speed chain on the bike (7 speed bike),

NOT the SRAM 10 speed chain.
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Old 04-24-07, 03:21 PM   #4
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Originally Posted by hotbike
Oh, I just searched the forum and re-read the other thread.

I put a SRAM 9 speed chain on the bike (7 speed bike),

NOT the SRAM 10 speed chain.
Why not an eight speed chain? Was nine speed all they had available? For your seven speed drivetrain, I'd recommend the SRAM PC-58 (or the PC-48).

Last edited by well biked; 04-24-07 at 03:26 PM.
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Old 04-24-07, 03:39 PM   #5
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Why not an eight speed chain? Was nine speed all they had available? For your seven speed drivetrain, I'd recommend the SRAM PC-58 (or the PC-48).
58 not 48. The 48's have a tendency towards surface rust in my experience.
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Old 04-24-07, 03:51 PM   #6
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Sedis-Sport chain must've been new old stock sitting on a shelf for a long time.
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Old 04-24-07, 03:54 PM   #7
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yeah....you really should be running an 8 speed chain on that 7 speed cogset.
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Old 04-24-07, 05:09 PM   #8
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Originally Posted by JanMM
Sedis-Sport chain must've been new old stock sitting on a shelf for a long time.
Yeah, That Sedis Sport came in a box that looked like the ones I bought fifteen years ago.
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Old 04-24-07, 05:16 PM   #9
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Quote:
Originally Posted by roadfix
yeah....you really should be running an 8 speed chain on that 7 speed cogset.
The LBS sold me a 9 speed SRAM chain.
I read the instruction sheet and it said the power link should only be used once.

I did get it out for a test ride in the meantime,

and it is jumping on 1st and 2nd gear (28 and 24 teeth, respectively).

But it works in 3rd gear, and I haven't shifted through all the gears yet.


But it would jump in 1st and second, regardless, would it not?

I'm trying to decide on either two new sprockets, or a new freewheel.
I know that if I need three sprokets, it costs as much to replace them individually as a new freewheel would.
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Old 04-24-07, 06:56 PM   #10
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Originally Posted by hotbike
The LBS sold me a 9 speed SRAM chain.
I read the instruction sheet and it said the power link should only be used once.
No, that can't be right. As far as I've EVER heard, it's only the TEN speed SRAM chain that has a one-use link. The nine speeds have a Powerlink that is reusable as many times as you like--the gold link.

But they shouldn't have sold you a 9-speed chain in the first place! Did you tell them you had a seven-speed cogset? If so, then it's their fault and they should make it right.

You're correct that the best thing to do about worn-out cogs on your freewheel is to buy a new freewheel. There's a very nice 11-28 speed Shimano available at Harris Cyclery for only $20.

About the Sedisport chain, are you absolutely sure it's not long enough? That seems very unusual to me. Maybe they sold you one that they had already shortened but then didn't use. Or, it's possible that your previous chain was longer than it needed to be. Sheldon Brown has an excellent illustration of how to determine what length of chain will work for your bike, here: http://sheldonbrown.com/derailer-adjustment.html#chain
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Old 04-24-07, 07:04 PM   #11
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Are 9 speed chains even compatible with 7 speed cogs?
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Old 04-24-07, 07:16 PM   #12
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Yes, very.
X2 but you way overpaid.
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Old 04-24-07, 07:17 PM   #13
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Are 9 speed chains even compatible with 7 speed cogs?
In theory they might work. a 7-speed chain on 9 speed cogs would fail miserably and obviously.

I'd go back and get a 7/8 speed chain (they're the same width)
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Old 04-25-07, 03:57 AM   #14
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Reliability: "you mean will it come apart?"

1. It won't come apart from back-pedalling. The thing is symmetrical so forward-pedalling and back-pedalling are the same to the Power Link except for the amount of tension it sees.

2. You say they go on easy. This is true. They also come off easy when new. But you will find after a few thousand kilometres/miles they are a total pain in the a** to get off, so if you can't do it with two hands trying to force it off, it's unlikely to come off in some random riding situation. My opinion/experience is that they "improve with age".

Other than that all you have to do is move out of your mom's house and you're set dude!
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Old 04-25-07, 05:01 AM   #15
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A couple of points. Sram took over the Sedis name and business some time ago now. There is an increasing tendency for shops to sell chains that are too short for touring use and it's best to check this before buying.

I agree that it's difficult to free up the Power Link after it's been in use which is why I bought one of these.

http://www.parktool.com/products/det...t=5&item=MLP-1
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Old 04-25-07, 07:19 AM   #16
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Quote:
Originally Posted by zippy_one
Reliability: "you mean will it come apart?"

2. You say they go on easy. This is true. They also come off easy when new. But you will find after a few thousand kilometres/miles they are a total pain in the a** to get off, so if you can't do it with two hands trying to force it off, it's unlikely to come off in some random riding situation. My opinion/experience is that they "improve with age".
This hasn't been the case in my experience. As long as you know the trick to opening the PowerLink, and as long as your chain is well maintained (meaning it's not rusted up, tight links, etc.), I find opening the chain to be just as easy after 5,000 miles as after 5. The trick is to squeeze the outer plates together before sliding them forward/backward- if you don't do that, the link won't release easily.
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Old 04-25-07, 09:09 AM   #17
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Originally Posted by truckin
This hasn't been the case in my experience. As long as you know the trick to opening the PowerLink, and as long as your chain is well maintained (meaning it's not rusted up, tight links, etc.), I find opening the chain to be just as easy after 5,000 miles as after 5. The trick is to squeeze the outer plates together before sliding them forward/backward- if you don't do that, the link won't release easily.
Yup, that has also been my experience. I love my SRAM powerlink!

.... Brad
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Old 04-25-07, 09:17 AM   #18
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This hasn't been the case in my experience. As long as you know the trick to opening the PowerLink, and as long as your chain is well maintained (meaning it's not rusted up, tight links, etc.), I find opening the chain to be just as easy after 5,000 miles as after 5. The trick is to squeeze the outer plates together before sliding them forward/backward- if you don't do that, the link won't release easily.
Yeah, and you have to have ALL of the tension off of the chain and also your powerlink needs to be meticulously clean before you start trying to release it. Even then I think it is often quite difficult to release at times.
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Old 04-25-07, 09:18 AM   #19
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Quote:
Originally Posted by lawkd

You're correct that the best thing to do about worn-out cogs on your freewheel is to buy a new freewheel. There's a very nice 11-28 speed Shimano available at Harris Cyclery for only $20.

About the Sedisport chain, are you absolutely sure it's not long enough? That seems very unusual to me. Maybe they sold you one that they had already shortened but then didn't use.

The Sedis Sport I bought at the other LBS; "pro shop", was a road chain, so it was shorter. I went back to the pro shop (in my van, with gas at $3.09 a gallon) and the owners son let me exchange it, for a Sedis Sport ATB. The ATB chain was priced at $15.00.

So I have a spare Sedis Sport ATB chain in my van, while the SRAM chain is on the bike.
If I encounter any problem with the SRAM chain, I will swop chains immediately.
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Old 04-25-07, 05:00 PM   #20
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Originally Posted by Portis
Yeah, and you have to have ALL of the tension off of the chain and also your powerlink needs to be meticulously clean before you start trying to release it. Even then I think it is often quite difficult to release at times.
That hasn't been my experience at all. It's rather easy to remove the SRAM chain with everything still mounted and dirty. Provided you follow the instructions that is.
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