Tiagra 4700 chainrings interchangeable with ultegra 6800?

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zalle
Posts: 72
Joined: Sun Sep 25, 2016 11:14 pm

by zalle

Hi guys, Do you know if I csn get a 34 chainring off a 4700 and put it instead of a 39 chainring on a 6800?

Thanks

junchen
Posts: 348
Joined: Fri Jun 12, 2015 6:21 pm

by junchen

Aftermarket chainring for 4 bolt shimano pattern shows compatibility with 4700 5800 6800 9000, so I guess the 11 speed 4 bolt chain rings should be interchangeable.

Eg http://www.wolftoothcomponents.com/prod ... ano-cranks

However, even if it fits the crank, the other qn is 53/34 - - > the diff in teeth might be too big for smooth fd shifting?

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F45
Posts: 1077
Joined: Wed Jun 08, 2011 6:08 am

by F45

nvm, read it first.

zalle
Posts: 72
Joined: Sun Sep 25, 2016 11:14 pm

by zalle

From what I see in that website, they are compatible, yes. Even though Tiagra 4700 is 10 speed.

Michenfelder
Posts: 13
Joined: Sun Feb 21, 2010 1:40 pm

by Michenfelder

I ran into a problem on a bike where I was installing new 4700 cranks. To make a long story short, one way to try and solve the problem was to use my 34/50 rings from my 6800 crank instead of the 36/52 4700 rings.

When I install the 6800 rings on the 4700 arm, the thickness of the big ring where it mounts to the crankarm is different. This created a "lip" if you will between the mounting point of the ring and the crankarm. It looked incorrect. It bothered me and I ended up using a different crank with smaller rings to eliminate the issue.

IF you don't care what it looks like, then yes it will physically fit and work. It will just look incorrect.

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