For the bike-fit specialists and the numbers-oriented folks out there: Here’s the situation: I have a custom road bike, and I was fit by the frame builder in person, so it has been pretty much perfect . However, they built the system around a 110mm stem with a -6 degree angle and 30mm of spacers. …

If your bars aren’t internally routed, then it should be pretty quick and easy to try the space removal, no? In that case, just try it instead of over thinking it. It sounds to me like the issue is weight distribution more than anything. Having too much weight on the hands will cause your symptoms.…

Flipping your stem like you did pulled your weight forward. If you get a shorter stem and push your saddle back a bit, you can go low and keep your weight distribution close to your old position

@mcneese.chad Tagging you in case you can weigh in here – seems like this topic is right up your alley if you have a minute :+1:

I missed the and have to give it a read to see if I can help.

OK, I need to do this in a clear timeline to discuss the changes and your experiences 110mm x -6* on 30mm spacer stack = initial setup per fitting and custom build 120mm x -6* on 30mm spacer stack = first change that feels sluggish and sketchier descending Presumably from lack of steering “s…

You nailed it … my question is, does the aero penalty from the height negate the aero benefit from the increase reach? Or is it negligible?

Aero is tricky, but overly simple… the 1 to 4 change is potentially a give and take that may not hurt you. If you “stretch” a bit more, you may be more “aero” even with the 6mm taller height. In reality, 6mm functional height change is likely “noise” in the grand scheme. So much relies on how you…

TrainerRoad

Question re: Stack, Reach + speed & aero

Equipment

genefish May 8, 2025, 1:57pm 9

just curious where you landed on this?

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Question re: Stack, Reach + speed & aero

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