Mix Ultegra with DuraAce

[Chuck Hammer]

Just starting to build up my Colorado III. Can I mix a 7800 or a 7900 DuraAce group with an Ultegra 6750 Compact Crank?

Thanks

[godfrey1112000]

I Have Mixed Ultegra With 7800 Parts Fd Rd Crank
Brakes Are Also Ok To Mix

7800 Parts With 7900 Crank
7800 Parts With 7900 Crank And Rd

I Have Been Told By The Lbs That The Brakes For 7900 Must Have The 7900 Shifters

On All The Above I Have Used The Sram Red Cassette

[Chuck Hammer]

I have a 7800 group no crank, cassette or chain. A 7900 group no crank. I want to use a new Ultegra Compact crank with either the 7800 or 7900. Is there something I should be on the lookout for before I purchase the crank and BB?

[oldpotatoe]

Just starting to build up my Colorado III. Can I mix a 7800 or a 7900 DuraAce group with an Ultegra 6750 Compact Crank?

Thanks

Yes, just gotta use a 7900 FD with 7900 STI. It'll work great with just about any crank, inlcuding the 6750.

[socalspeedsk8r]

Shimano had replaced my 6600 series crank with the newer 6750 under warranty but also sent along a new 6700 chain. They said it will run better with the newer chain. I ran the 6750 crank with the 7800 set-up with no problems but did notice that is ran smooth with a 6700 chain and cassette. The 6600 cassette worked but not as nicely as the 6700.

Scott

[LouDeeter]

I usually just mix and see what happens if I already have the parts on-hand. I am riding one bike with:

Ultegra 9 speed shifters
XT medium cage rear der
Campagnolo Racing T front der
Ritchey compact crankset
Wippermann Chain
SRAM cassettte


Works great. :)

[cdn_bacon]

I usually just mix and see what happens if I already have the parts on-hand. I am riding one bike with:

Ultegra 9 speed shifters
XT medium cage rear der
Campagnolo Racing T front der
Ritchey compact crankset
Wippermann Chain
SRAM cassettte


Works great. :)


LMAO! Nothing like a bowl of Rice Mixies in the morning

[LouDeeter]

This is actually on my climbing bike, a Madone SL. The gearing is setup with a 34 front and 32 large cog on the rear. Wonderful.

[mtb_frk]

Here is a chart that I found when I was upgrading to 10 speed this winter.

http://bike.shimano.com/publish/content/global_cycle/en/us/index/tech_support/tech_tips.download.-Par50lparsys-0025-downloadFile.html/01%29%20Drivetrain%20Compatability%20Chart.pdf