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Reach versus Stack- Frame geometry advice


First post here after long time reading! wink

I'm looking at a new road bike and I'm in between sizes compared to my current bikes.

Looking at reach and stack, the 2 bikes line up like this;

Size 55 - Reach 386mm/ Stack 555mm

Size 57 - 394mm/ 572mm 


If I take my current Canyon Ultimate it looks like this;

Size Medium - 391mm & 567mm


Whilst I really love the Ultimate, it's as long on the reach as I would want to go, and I haven't felt the need to go lower on the stack/front end.


So my question, if I have to compromise on reach or stack on the new bike... which would be the best way to go?

I am leaning towards the Size 55 as I figure the reach is ideal and I can use some stem tricks to bring up the bars if I need to.






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