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Shimano Ultegra Hollowtech 2x10 to 2x11

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Shimano Ultegra Hollowtech 2x10 to 2x11

Old 11-27-20, 03:35 PM
  #1  
sjochlin
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Shimano Ultegra Hollowtech 2x10 to 2x11

Hi There,

My first time posting, so hopefully am not breaking any etiquette.

I have a Shimano Ultegra SGX FC-600 50/34F 170mm 2x10 Speed Compact Crankset.

All my components are 10 speed Ultegra but next year I'll be upgrading all the components to 11 speed Ultegra with a new Wheelset.

I am changing over the threaded BB right now and need to replace crankset. If I keep it a 170mm 50/34 compact crank, can I make the jump on the 2x11 crankset right now, while keeping everything else 10 speed? Is the best way to go about this to visit Shimano website, pick the crankset I want, and then read the tech specs to see if all the dimensions are the same between my old one and new one?

Any help here would be appreciated,

Thanks! Simon
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Old 11-27-20, 03:58 PM
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Iride01
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If you have to replace the crank set you can probably get either 10 or 11 speed crankset. My son's Trek Emonda has a Tiagra 4700 10 speed crank and front DR, but everything else is 105 5800 11 speed.
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Old 11-27-20, 04:16 PM
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10-speed crank and chainrings work perfectly with otherwise 11-speed shifters/derailleurs/cassettes. I kept my 10-speed Ultegra crank when I upgraded my bike to 11-speed.
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Old 11-27-20, 04:28 PM
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Originally Posted by sjochlin View Post
Hi There,

My first time posting, so hopefully am not breaking any etiquette.

I have a Shimano Ultegra SGX FC-600 50/34F 170mm 2x10 Speed Compact Crankset.

All my components are 10 speed Ultegra but next year I'll be upgrading all the components to 11 speed Ultegra with a new Wheelset.

I am changing over the threaded BB right now and need to replace crankset. If I keep it a 170mm 50/34 compact crank, can I make the jump on the 2x11 crankset right now, while keeping everything else 10 speed? Is the best way to go about this to visit Shimano website, pick the crankset I want, and then read the tech specs to see if all the dimensions are the same between my old one and new one?

Any help here would be appreciated,

Thanks! Simon
I recently bought a 2007 look that is duraace 10 speed but it had a new Ultegra8000 double chainring seems to work perfect. Almost as good as my newer bmc di2 bike. I donít know the original spec for the bottom bracket but looks like they did replace that too.
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Old 11-27-20, 04:42 PM
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If you have to replace the FC-600 crank then buy the 11-speed crank you want and use it with your current 10-speed everything else. If you are replacing the crank just because you plan to go to 11-speed later, don't bother since that FC-600 crank will work just fine with the 11-speed components.
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Old 11-27-20, 11:37 PM
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sjochlin
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Originally Posted by HillRider View Post
If you have to replace the FC-600 crank then buy the 11-speed crank you want and use it with your current 10-speed everything else. If you are replacing the crank just because you plan to go to 11-speed later, don't bother since that FC-600 crank will work just fine with the 11-speed components.
Great, thanks!

I am replacing because all of the components are worn and need to be replaced But it is still a great bike frame!

Thank you to everyone that responded, really helped!
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