Which chain for Rotor Q-rings

masa

Hello I am riding with Rotor Q-rings with Ultegra cassette.

Time to replace my chain, but what's the best buy for this setup?

1. Dura ace 7800 chain;
2. KMC X10 SL;
3. Rotor chain.

James H-S

Kmc

Grill

I use DA7900 chains on all my bikes including my Q'd TT bike. Haven't failed me yet.

masa

Grill wrote:

I use DA7900 chains on all my bikes including my Q'd TT bike. Haven't failed me yet.

They told if using DA take the old 7800 version ......

gaddster

Been using da7901 with no issues at all on qrings

dirtymonkey1985

I've used kmc and dura ace without any issues. Setting it all up correctly is the key

masa

dirtymonkey1985 wrote:

I've used kmc and dura ace without any issues. Setting it all up correctly is the key

Dura ace 7800 or 7900 or both?

dirtymonkey1985

7900

masa

dirtymonkey1985 wrote:

7900

Ok, I wonder what the theory is behind the Dura Ace 7800 story .......... most ''technicals'' told me to use the Dura Ace 7800 instead of the 7900 new version......

Grill

The 7900 chain is lighter and smoother. The only reason a "mechanic" wouldn't like it is because it's directional and needs to be intstalled the right way round. My mechanic works for Welsh Cycling and has nothing but praise for it and you can find them for about 30 quid.

masa

Grill wrote:

The 7900 chain is lighter and smoother. The only reason a "mechanic" wouldn't like it is because it's directional and needs to be intstalled the right way round. My mechanic works for Welsh Cycling and has nothing but praise for it and you can find them for about 30 quid.

Ok, only thing I know is that it has to do with the position of the ''teeth'' from the Rotor chainrings. This position seems to be different from the ''new'' Shimano chainrings.

dirtymonkey1985

It's worked floorlessly for me. I'm currently running kmc x10sl and ultegra 6700 on my bikes and I can't fault them

Grill

masa wrote:

Grill wrote:

The 7900 chain is lighter and smoother. The only reason a "mechanic" wouldn't like it is because it's directional and needs to be intstalled the right way round. My mechanic works for Welsh Cycling and has nothing but praise for it and you can find them for about 30 quid.

Ok, only thing I know is that it has to do with the position of the ''teeth'' from the Rotor chainrings. This position seems to be different from the ''new'' Shimano chainrings.

Dude, there's already been 3 people in this thread (myself included) that use the 7900 chain on Q-Rings without issue. If it's good enough for 12hr and 24hr TTs, then I don't see how you're going to have an issue. It's your cash, so you can do what you like.

masa

So dude ............. I do not have an issue .......... I know I can do whatever I want with my cash. Only trie to discover the theorie behind 7800 and 7900 da chains on Rotor chainrings.

neil.s

KMC without doubt. The only chains I've had snap on me are Shimano and Campagnolo. I wouldn't touch those chains with a barge pole nowadays. This is of course just my experience. I've used KMC for years now, even reusing the quick-link over and over again and never had one problem (fingers crossed etc!!).

neil.s

Oops! Meant to add, used KMC chain with Q-Rings for years!

Grill

masa wrote:

So dude ............. I do not have an issue .......... I know I can do whatever I want with my cash. Only trie to discover the theorie behind 7800 and 7900 da chains on Rotor chainrings.

The sizing and spacing is identical so if there were issue they would be the same on both. It's the 9000 chain that's narrower to accommodate 11 speed.