Skip to content
View in the app

A better way to browse. Learn more.

Pedelecs Electric Bike Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Chain wear?

Featured Replies

I had a new chain (Sram PC1110) fitted to my 11 speed Cube Reaction Race ebike in the middle of February, and its now showing 0.5% wear, which according to the Park Tool chain checker guide means my chain should be replaced.

 

I ride about 200 miles per month, so in the three months since i've had this chain I've probably covered 600 miles.

 

Does this sound about right as I expected it to last longer?

  • Author

How come some 11 speed chains have more links than others?

 

The one fitted to my bike is 120 links, I see the one you posted has 118 links, and I've also seen 11 speed chains with 114?

 

Infact, I bought a 114 ink chain my mistake and when fitting it today and it just doesn't fit right, the chain touches itself as in the photo below, I can only assume it is to long? (Although when holding it up against the chain I removed they were both the same length)

 

IMG_8911.thumb.jpeg.1b1659b92d34c8a4ad2060dec82aed45.jpeg

Edited by The Bear

  • Author

depends what size front chain ring you have ;)

 

Ok, thanks. So is there a way of working out which size chain is needed?

When my bike shop fitted one for me the receipt said it was a Sram PC1110 120 link. The replacement I bought by mistake has 114 links but appears to be to long (see photo above).

it is what you use the chain tool for and remove links you dont need and yeah it is to long prob why it is knackered.
  • Author

it is what you use the chain tool for and remove links you dont need and yeah it is to long prob why it is knackered.

 

The one in the photo is the new one I fitted today, but isn't right. So perhaps I just need to remove some links?

  • Author
Thanks, obviously the 120 link chain had some links removed . I'll get myself a chain link tool. Any suggestions for a good one?

Edited by The Bear

Thanks, obviously the bike shop got a 120 link chain and removed some links. I'll get myself a chain link tool. Any suggestions for a good one?

 

Bike shops have chains on rolls, so it is unlikely they ever actually count the links, just set them up big ring to largest sprocket on the rear.

Bike shops have chains on rolls, so it is unlikely they ever actually count the links, just set them up big ring to largest sprocket on the rear.

id not be taking my bike back to a shop that does work like that lol.

id not be taking my bike back to a shop that does work like that lol.

 

All bike shops do that. obviously you won't be going to any.

so you think a chain that is to long is fine then there is no tension on that rear mech at all thus the clutch is doing nothing and looks like the chain is rubbing on the top jockey wheel as well.

so you think a chain that is to long is fine then there is no tension on that rear mech at all thus the clutch is doing nothing and looks like the chain is rubbing on the top jockey wheel as well.

 

Of course not, chains are set up so they don't lock up in the extreme big to big and that wasn't fitted by a bike shop remember.

I ride about 200 miles per month, so in the three months since i've had this chain I've probably covered 600 miles.

 

Does this sound about right as I expected it to last longer?

 

If your not doing off road riding, you could consider converting to an 8 speed.

 

I did it on my 10 speed Pro Connect.

Being a stronger chain, it lasts longer and is much cheaper to replace.

 

I’ve always found the 8 speed to be easier to set up too and perfect for commuting.

  • Author

If your not doing off road riding, you could consider converting to an 8 speed.

 

I did it on my 10 speed Pro Connect.

Being a stronger chain, it lasts longer and is much cheaper to replace.

 

I’ve always found the 8 speed to be easier to set up too and perfect for commuting.

 

The problem is, I use all eleven of my gears on my commute. Gear eleven on the flats (and I could do with a higher gear) and sometimes all the way down to gear one when riding up the steep hills on my daily commute....

 

 

37895769052_c99eb77008_b.jpg

  • Author

Just taken my new chain off and hung it from a nail on a length of timber, and SW is correct, it's two links longer than the one its replaced. I had previously measured it top of a flat bench and they both looked the same length, but obviously not.

Got a chain link tool arriving today so I'll remove two links and refit it.

The problem is, I use all eleven of my gears on my commute. Gear eleven on the flats (and I could do with a higher gear) and sometimes all the way down to gear one when riding up the steep hills on my daily commute....

 

 

37895769052_c99eb77008_b.jpg

The problem is, I use all eleven of my gears on my commute. Gear eleven on the flats (and I could do with a higher gear) and sometimes all the way down to gear one when riding up the steep hills on my daily commute....

 

 

37895769052_c99eb77008_b.jpg

Hi Bear,

The 11 speed and 8 speed have the same 11t high gear and I would be surprised if a 34t low gear wouldn’t be sufficient on most electric bikes.

 

Still I guess the larger steps between the gears wouldn’t suit everyone.

How come some 11 speed chains have more links than others?

 

The one fitted to my bike is 120 links, I see the one you posted has 118 links, and I've also seen 11 speed chains with 114?

 

Infact, I bought a 114 ink chain my mistake and when fitting it today and it just doesn't fit right, the chain touches itself as in the photo below, I can only assume it is to long? (Although when holding it up against the chain I removed they were both the same length)

 

[ATTACH type=full" alt="30571]30571[/ATTACH]

I believe I might see your problems. But guessing a little.

Firstly, you need to count the length of the chain by links. Not by any other type of measuring. Naturally the size of the link, both width and length need to be noted. The one in your photo is far too long.

Next, I see no motor, so you either have a front hub or a middle motor like Bosch. If a middle motor, remember that not only your pedal power goes through the chain, but also motor powers as well, so do not expect a long life for the chain, even when correctly adjusted.

Furthermore,there are some cheap chains that should not be bought, but some bike shops still fit them......and charge for a good chain!

But they are SO simple to install,with a few simple cheap tools, get someone to show you how and buy the tools.....

You might like to read this:-

https://en.wikipedia.org/wiki/Bicycle_chain

regards

Andy

  • Author

Well after cutting the new chain to the same size as the old one (same number of links as the old one, both hung up together from a nail in the wall and both the same size), its still not right. It's noisy, with a horrible metal on metal sound as if its catching somewhere, and i'm getting constant chain suck.

 

So have I fitted the wrong chain completely? How can I tell if its the wrong chain, as it looks identical to the one i took off. The receipt for the old one said Sram PC1130 11 speed 120 link, and the new one is the same. Or, has my cassette worn so much that it needs replacing also?

 

I've refitted the old chain back on for now, but I just can't see what could be wrong with the new one??

 

 

Heres the new chain at the front...

 

IMG_8913.thumb.jpeg.580e607bcbd759b4e3003b50d02a17aa.jpeg

 

 

 

New chain at the rear...

 

IMG_8926.thumb.jpeg.6f0f6caf4feaf32c5e0861808414126a.jpeg

Edited by The Bear

The SRAM PC 1130 11 Speed Chain is the only chain recommended for the SRAM Rival 22 groupset.

 

so it is a road bike chain and not for mtb.

  • Author

The SRAM PC 1130 11 Speed Chain is the only chain recommended for the SRAM Rival 22 groupset.

 

so it is a road bike chain and not for mtb.

 

The receipt for the chain that the bike shop fitted states Sram PC1130, which is why a bought another one. Perhaps they just scanned the barcode of one of these for a price, yet fitted a different chain entirely?

 

IMG_8914.thumb.jpeg.4790a3fbabd63161b0d62c3567d8be88.jpeg

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...
Background Picker
Customize Layout

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.