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I get you. I just wanted slightly bigger gears and thought I could do it and standardise everything to GRX across bikes. Alas, no. I'll probably just stick the fucking Middleburns back on because an undergeared rideable bike is better than an unrideable bike.
What I'd love is my "normal" external BB Shimano crank bullshit but if those fucks don't do 165mm, 73mm, 1x, NW, fucking 36T that somehow also magically clears the chainstays of a Surly Ogre then so be it - I'll buy an electric recumbent.
I know many will discount this….
But , square taper Shimano bb un55 are still available in 73mm. Love to see you try and destroy this.
Then spa cranks in 110 bcd. They do 165mm as well.
Not pushing an agenda here but my anecdata says it’s good.
Then NW cring off AliExpress for 8£. Or if you buy the spa triple crank arms and make , a compact double 24/36 , 30/46 or whatever. They do these built up as while csets too.
Before anyone says heavy , I too ride a surly and have weighed things precisely zero times so this may be important to you! Also aesthetics, hmmm, surly with tbars (like I do) kind of invalidated this?