Learn more. Is my chain too long? Ask Question. Asked 10 years, 6 months ago. Active 10 years, 5 months ago. Viewed 56k times. Should I remove a link or two until this no longer happens? Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Thank you for your comprehensive explanation. However, I still feel a bit lost. The wee z seems a bit arbitrary for me to make a good decision, I'm not entirely sure what you mean by that though.
Here are two photos which I would be grateful to have you take a look at. I've edited and re-uploaded your picture to make it clear. Although I did edit the wrong picture, you should do this in the large-large gear not the small-small one pictured. Thanks for the extended effort, I understand what you mean now by the Wee Z and have everything working properly now. Community Bot 1. Stephen Touset Stephen Touset 8, 1 1 gold badge 33 33 silver badges 49 49 bronze badges.
Thanks for that, however his explanation is incomplete. From the way it's written, it reads like you are merely removing one complete chain link from the current length. Should the chain be taught when doing this overlap? Well, no, then there wouldn't be enough chain to compensate for what's used by the derailleur.
It is especially futile to attempt to remove the master link with only your hands, so best not even try that. If your chain is worn out, then there is no need to strategically remove the master link. Connecting rivet chains use a specific rivet or pin to connect the chain together.
The connecting rivets on this type of chain will have a noticeably different appearance from the other rivets. When you select a rivet to break, make sure that it is at least links away from any connecting rivets that are already present in the chain. When you use the chain tool, the driving pin will make contact with the connecting rivet. Turn the handle of the chain tool with gusto and push the rivet out. The chain will disconnect then, and you can remove the chain from the bike.
There are multiple ways to check to see if your road bike chain is sagging too long. One way to check if you do happen to be out on the road is to park the bike and shift into the large-large combination and check for spare chain. To do this, pull a chain link over itself so that it almost makes a z shape. If you can keep extending this Z shape with multiple links, then do so until the rear derailleur seems unable to count more links.
Doing so will give you an idea of just how many links too long your chain is. Begin by shifting the front derailleur over the biggest of the chain rings and the rear derailleur to the smallest possible cog.
At first glance it looks awesome, but look closer. Unfortunately, this is very common — even on brand new bikes in the shop.
Get your bike set for Maximum Performance. Customer Reviews , Reviews. Setup: Chain Length Proper chain length makes a big difference with shifting. When changing the chain or setting up a new bike follow this video technique: The process is simple and straightforward. A correctly sized chain will be able to shift into both of these gear combinations without sagging or getting stuck, although they should still be avoided while riding.
The rear derailleur on these bikes serves two purposes: to allow shifting across the cassette or freewheel, and to tension the chain as the amount of chain wrapped around the gears changes as you shift. A loose chain can cause accelerated wear of your drivetrain components, leading to premature cassette or freewheel or cog replacement, chainring replacement, or chain replacement. Additionally, the chain could unexpectedly drop off the gears, causing you to lose your balance as you pedal leading to a crash, or it could become stuck in other parts of the bike and cause damage as it wedges itself between the crankset and frame, small cog and frame, or large cog and the wheel spokes behind it.
If there is still sag in the chain, the rear derailleur itself may be damaged and unable to properly tension the chain, requiring repair or replacement. The spring that pulls the derailleur cage back may be worn out, and this is not something that is usually serviceable, but a new derailleur will get you back shifting.
A derailleurless drivetrain will have an alternative mechanism to tension the chain. It may have horizontal dropouts, sliding dropouts an eccentric bottom bracket, or a dedicated chain tensioner. Here, the extra two rivets of chain will allow you to more easily remove your rear wheel.
Once a correct length of chain is installed, the chain must be manually tensioned as there is no derailleur.
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