differences between the Shimano GRX RX400 and RX600 groupsets

[Erik_A]

Other than 11 vs 10 speed, what are the other differences between the Shimano GRX RX400 and RX600 groupsets? Are the brakes basically the same?

[SpeedyChix]

Here's the lineup from Shimano.
https://bike.shimano.com/en-US/product/component/grx.html

Looks like they are making some distinction on the brakes.

[Erik_A]

Thanks, looking at the Shimano web link, I don’t see the distinction.


Here's the lineup from Shimano.
https://bike.shimano.com/en-US/product/component/grx.html

Looks like they are making some distinction on the brakes.

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Brakes are all the same across 400-600-800.

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.

[SpeedyChix]

Thanks, looking at the Shimano web link, I don’t see the distinction.

I'm not seeing it either and recall reading they were just "rebranded" flat mount road calipers like Ultegra.

[Erik_A]

Like these BR-R8070:

https://cdn.bike24.net/i/p/6/2/276726_00_d.jpg

I'm not seeing it either and recall reading they were just "rebranded" flat mount road calipers like Ultegra.