Bicycles Asked by Brian Reinhold on June 10, 2021
I just bought a new cassette and SRAM 9-speed PC 971 chain. On the outside of the package a power lock is pictured. However, inside the package only one half of the power lock was included. There must have been an error in packaging at the plant.
Can I install this chain by removing one of the end links, and use my chain tool to connect the two ends? I will need to re-use the pin that I had to pop to remove one of the end links. I bought this chain on line from Sports Basement. All those stores are in California and I am in New Hampshire so a quick fix is not possible.
Has anyone ever had something like this happen?
No, don't do that unless it's to limp the bike home. SRAM says not to and I've seen sufficient evidence it's for good reason.
The theoretical/manufacturer-stated reason not to is that the press fit is prone to not being as strong as intended once you've pushed the pin out and back in.
The pattern I've seen when people, myself included, do this is that it can seem to be fine but is in fact prone to breaking. When it happens it's usually during a shift under load, particularly in front. It needs to be in just the wrong spot, so you can see how it can give the illusion that it's fine.
Re-using an old one for a while would be fine, as would be using a 9-speed KMC Missinglink if you can find that locally.
Correct answer by Nathan Knutson on June 10, 2021
It should work for now. I can't tell visually if this model of chain is riveted or not. If it is, you will be able to push it out, but will struggle to push it back in (sometimes to the point of impossibility). Re-pressing a riveted chain also significantly reduces its strength.
Try to obtain a proper master link as soon as possible though. It's nice to have a spare one on hand regardless.
Answered by MaplePanda on June 10, 2021
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