Roubaix frame size advice

Hi, I'm looking into buying a Specialized Roubaix Sport 2022, when it will be on stock š .
I'm not sure about buying a 52 or a 54. I have 169,5 without shoes.
According to the manufacturer 52 is up to 170 and 54 above. Also I tend to have the arms a bit shorter relative to the body.
Since I might have to buy it online I was thinking to buy a 52 and in case it's too short to replace the 90 stem with 110. Probably an adjustable stem like Deda adj since I prefer a more upright position.
I know that fitting a longer stem is a common practice, the question is how much is too much? Will the bike be stable for emergency braking ?
Also is future shock 1.5 compatible with stems from other brands than Specialized?
Thanks for your help!
I'm not sure about buying a 52 or a 54. I have 169,5 without shoes.
According to the manufacturer 52 is up to 170 and 54 above. Also I tend to have the arms a bit shorter relative to the body.
Since I might have to buy it online I was thinking to buy a 52 and in case it's too short to replace the 90 stem with 110. Probably an adjustable stem like Deda adj since I prefer a more upright position.
I know that fitting a longer stem is a common practice, the question is how much is too much? Will the bike be stable for emergency braking ?
Also is future shock 1.5 compatible with stems from other brands than Specialized?
Thanks for your help!
0
Posts
If you prefer a more upright position I think the 90mm stem will be ok.
Over the years on various bikes I have used various lengths of stem and never had any problems with any length.
Any stem for a standard 1 1/8 in steerer will fit.
You will love the bike.
Now the challenge is finding a bike!
So far I found a 54 but I'm hesitating since I think my size is 52.
Good luck
*after several years of reading this forum