Thread: 2021 Trek Fx sport 4 geometry and sizing
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Old 03-21-24, 06:25 PM
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DorkDisk
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Originally Posted by Awesomeguy
I bought a 2021 Trek Fx sport 4 carbon (new) in 2023 , to add to my n+1 which is a 2020 fx 3 and I always been confused about this generation fx sport carbon bike geometries. The Large Fx 3 bike, has a similar reach and stack to that of Medium 2021 Fx sport 4 carbon, why is the FX sport carbon (2021) one size larger almost for a given size ?

Is 2021 Fx Sport Carbon size Medium = Trek Fx 3 Large, interns of sizing ? I'm 6' feet tall and 32.5inseam

2021 Fx Sport 4 Carbon
https://www.trekbikes.com/us/en_US/b...ort-4/p/32262/

2020 Trek Fx 3

https://www.trekbikes.com/us/en_US/b...-disc/p/35021/
Because they're different bike types and are designed to fit differently.

The FX is for beginners who like to be upright so short top tubes and taller head tubes.

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