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Shimano GRX RD-RX400 10 Speed Rear Derailleur Shadow+ for Double

£54.99 Please note this product has selling restrictions to your country. was
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Questions & Answers (4) Q & A
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Questions & Answers (4)
What 10 speed road shifters will work with this mech?
07 Dec 2020
GRX 10-speed levers- such as the ST-RX400-L and ST-RX400-R.

JK 07.12.20
Can I use this GRX mech with new Shimano Tiagra 4700 2x10 Speed STI Shifter?
07 Dec 2020
We are unable to confirm this, as we have not yet tested 4700 levers with this mech.

JK 07.12.20
Can I use this with a triple chainset (ultegra 6603) and triple levers (5703)?
26 Jan 2020
Hi, no this is for GRX double chainsets and shifters. It will also work with Shimano 4700 series. Thanks 29/01/2020
Compatible withy my Ultegra 6600 10 speed shifter?
06 Sep 2019
Unfortunately these work with current 10 speed Shimano, 4700 or GRX.

Thanks - 06/09/19