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Smiley
12-06-2019, 10:47 AM
I have a 53/39 RED GXP 10 speed crankset that I want to swap out to a 11 Speed (because I can't find or buy a 10 speed crankset) so I need an 11 speed 52/36 GXP crankset. Anybody make this change out with any issues and it looks like I will need a Force since finding a Red is very difficult. So if anybody has the answer great PLUS if you know where I can buy a Red 10 speed even better :) Thanks in advance.

yinzerniner
12-06-2019, 11:16 AM
I have a 53/39 RED GXP 10 speed crankset that I want to swap out to a 11 Speed (because I can't find or buy a 10 speed crankset) so I need an 11 speed 52/36 GXP crankset. Anybody make this change out with any issues and it looks like I will need a Force since finding a Red is very difficult. So if anybody has the answer great PLUS if you know where I can buy a Red 10 speed even better :) Thanks in advance.

10 speed chainrings work with 11 speed chains just fine.

Had a Red Exogram 53/39 with 10 spd marked rings for years working with Force 22 Shifters, FD, RD and an 11-28 Dura Ace 9000 cassette.

Some have suggested that the front shifting is a little smoother with the 11 spd chainrings vs the 10 spd chainrings when used in concert with the Yaw FD, but I never noticed a difference after switching the crankset to a Red Exogram 50/34 11 spd.

Leonard Zinn on Velonews has done a gaggle of articles on 10 and 11 spd compatibility. Generally, the biggest tiff is the interaction of the shifters, cassette and RD. FD and chainring compatibility seems pretty widespread.
https://www.velonews.com/2013/09/technical-faq/technical-faq-drivetrain-compatibility-for-10-and-11-speed_301392
https://www.velonews.com/2014/07/technical-faq/technical-faq-1011-speed-compatibility_337803
https://www.velonews.com/2015/03/technical-faq/technical-faq-10-11-speed-drivetrain-component-compatibility_362722