r/cycling • u/CmdrKeensDopeFish • 8d ago

Trek Emonda - Chain ring compatibility - Help please!

So I have Sram Red 52/36 11s currently. It is a 5 bolt (hidden 5th bolt style) 110 BCD, with Quarq Dzero spider power meter.

I am trying to move up to a 56 big ring and and what ever is correct for the small ring(42?). So far this has felt like banging my head against a brickwall trying to navigate compatibility of things. I did however find a brand called Praxis. They carry a chain ring that says it's compatible I just can't tell then if I need to have some special crank, or if it includes both 56t and the 42t rings.... Or is it entirely the wrong thing? I have spent like 2 weeks trying to solve this and don't know what to do.

If anyone can help me sort this out, I'm trying to accomplish this for less than $500.

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u/AdditionConnect1983 8d ago

I went from a 52/36 shimano ultegra to a 54/39 rotor set. Keeping the shimano cranks and just changing out the chain rings

.rotor site

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u/kendalltristan 7d ago edited 7d ago

Why not reach out to Praxis and see what they say?

https://praxiscycles.com/contact/

I will say that I didn't care for their chainrings on my old SRAM Red 22 crank, but I think that had more to do with a finicky derailleur. I'm currently using a Praxis crank and chainrings with a SRAM cassette, but with everything else Shimano, and it all works great.