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Old 05-09-21, 08:09 AM
Senior Member
Join Date: Jul 2007
Location: St Louis Missouri
Posts: 347

Bikes: 19 Gunnar Hyper-X Ultegra Disk, 17 Specialized Sequoia Elite

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Mixing Shimano Ultegra & GRX?

I have switched over to mostly gravel & paved trails due to the drivers in the St Louis area.
I am looking for lower gears from my current setup. Ultegra 8000 50/34 & 11/32 cassette with GS derailleur on my Gunnar Hpyer-X disc frame.
I have a 11/34 Cassette on its way but thinking I may be better off going 11/42 and adding the GRX RX812 derailleur. Can I use my Ultegra compact crank and FD and GRX RD?
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