New CrankSet - New Chain ?

Discuss light weight issues concerning road bikes & parts.
Post Reply
Posts: 10
Joined: Sun Dec 04, 2011 11:47 am

by lukael82

Hello !

I have one stupid question, but I hope someone can answer me :oops:

I'm replacing my old 50/34T crank to 53/39T, and I'm wondering If I'll have to replace my chain again, since there is more teeths on the new crank. However, my chain is almost new and I don't want to throw it away.

Will chain fit perfectly, or I'll have to add some extra chain pins to avoid problems ??

Thnx for your help !!
Life is just a game that we all play

by Weenie

User avatar
Posts: 232
Joined: Sun Oct 17, 2010 8:45 pm
Location: London

by Dov

It will probably be too short. Adding links to a chain is a pain in the arse
Felt F1 DA Di2
Cinelli Supercorsa
Cielo Classic Sportif
Concorde Shopper
Nagasawa Fixie Skid Machine
Cannondale CAAD 10 Track [custom]

Employee of Rapha

Posts: 106
Joined: Mon Apr 09, 2012 10:48 pm

by jordo99

It really just depends...If you did sized the chain using the "big-big minus 2 links" method it's very likely that it will be too short.

Because of this, I've switched to the "small small, remove links until the chain doesn't rub on the derailleur" method. This method gives you the longest possible chain for your crank and will only cause issues if you switch from a 11-?? cassette to a 12-?? cassette.

This method allowed me to run a 11-23 and 11-28 cassette on the same chain when I switch wheels...though if you wanna be a WW about it my chain could shave a few grams if I had the chain setup with "big-big minus 2 links"

User avatar
Posts: 1901
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

If the chain was correctly sized before, it's probably too short now.

Here's a chain on the big-big combo with the RD maxed out. If your chain looks like this now then it's too short to change up to bigger chainring.

There's sometimes a buggy.
How many drivers does a buggy have?


So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

Posts: 174
Joined: Tue Dec 07, 2010 7:33 am
Location: Canada

by Robroyski

If you are short on cash see if it fits (big/big set up)

I would buy a new chain.

in the industry
Posts: 3714
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K

by bm0p700f

Not a good idea to add links to a chain. Also if its a campag chain you should only add link with there 7 link HD link as it has a special joining pin. Also there is a link in campag chain that should not be broken.

"big -big minus 2 links" surely you mean plus two links or else the chain ends up too short.

Posts: 10
Joined: Sun Dec 04, 2011 11:47 am

by lukael82

thanks for the picture Bikerjulio, I will check out that for sure :thumbup:

I don't see a problem why I shouldn't add pins to my chain, It's a Ultegra 6700 chain, and I had to cut It off to match size with my current crank, so I have some extra original pins left :mrgreen:
Life is just a game that we all play

Posts: 132
Joined: Sun Aug 23, 2009 10:15 am

by jasjas

Why isnt it ? a new join will be just as strong as the first one or you wouldnt join a chain in the first place?

I have added an extra link or 2 lots of times (Shimano) and if the original chain is nt worn (the op said it was almost new) then where is the problem? just make sure the new link is in the right direction, use a genuine shimano pin (follow their tech instructs on pin direction, through a split chain) a kmc quick link for final joining (if you want to swop bac to compact) and job done!

by Weenie

Post Reply
  • Similar Topics
    Last post