• Getting back to gearing: a friend has grx400 on his bike with 46/30 front paired with 11/36 which does seem easy enough and yet he wants to go even lower.
    Is an mtb double the chapest way to go? Also, das that warranty front der change?

  • If it's a GRX rear derailleur it'll probably do 11-40 or 42. I have this and it's great if you're doing 10km climbs with full camping gear.

  • Yeah, I run 48/31 x 11-40 with GRX 800. Rear derailleur needed the clutch backing off a touch, but it runs well now. With 650B wheels that gets me 21 gear inches. Bikepacking in Scotland, init.

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