Going for larger chainrings - chain length?

Discuss light weight issues concerning road bikes & parts.
Post Reply
User avatar
Kermithimself
Posts: 991
Joined: Sat Jun 02, 2007 12:48 pm
Location: Denmark

by Kermithimself

Currently I'm riding with a 50/34 combination on my Rotor crankset. Would like to have a 52/38 combination instead. If I choose the larger chainrings, do I then need to lengthen the chain, or will it work ok?
------------
If you dream of being famous - think of what birds do to statues.
Instagram: https://www.instagram.com/kermithimself/
Youtube: https://www.youtube.com/channel/UCdCPaXwpeXT_LpuEF0REjqw
Facebook: https://www.facebook.com/gotlegscycling/

savechief
Posts: 305
Joined: Wed Aug 31, 2011 2:36 am

by savechief

It depends on how long your chain is now.
Time VXRS Ulteam (7.16 kg)
viewtopic.php?f=10&t=120268

Beancouter
Posts: 382
Joined: Fri Apr 20, 2012 9:04 pm

by Beancouter

You'll most likely need a longer chain. Sure someone will correct me but basic rule of thumb for minimum chain length is to wrap chain around largest cogs front and rear (not Passing through rear changer) and add 2 links.

5 8 5
Posts: 1353
Joined: Sat Jul 29, 2006 2:36 am
Location: UK

by 5 8 5

If it was originally fitted using the small / small method (ie longest) you may be okay.

User avatar
TrekUk
Shop Owner
Posts: 353
Joined: Mon Jan 14, 2013 5:45 pm
Location: UK

by TrekUk

id be pretty suprised if you didnt have to change your chain for a bigger one.
Madone Five Series 2013
Shimano Dura-Ace 9000
Mavic Cosmic SLE 2013

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

by bikerjulio

As everyone else has said - it depends on what length your chain is now.

If you put in the big-big combo now and the RD is really stretched out, then you need a new chain. If there is still some slack you are probably OK.
There's sometimes a buggy.
How many drivers does a buggy have?

One.

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

http://www.youtube.com/watch?v=GekiIMh4ZkM

Post Reply
  • Similar Topics
    Replies
    Views
    Last post