ZenTriBrett wrote:
MRid wrote:
This question is for anyone, not just desert dude, but why are TT bike bad at climbing? They are generally light which I would think would be better for climbing. so is it a position thing? I'm not disputing the claim, as I don't know enough to say otherwise, I'm just curious what the reasons are.
They aren't until you get to really steep stuff. It's a misconception. You have to be climbing something like an 8% slope before the aero benefits are outweighed. GCN did a test on it and people can watch it on youtube.
There is a little more to it than that. Most, if not everyone, puts out more power on a road bike than on a TT bike. Even people who train a lot on a TT bike will put out a lower power.
When the road goes up the weight of the system being pushed down (up) the road becomes greater a lot faster than the wind resistance drops. Raw power (Power to weight ratio actually) now becomes the driver, and you have more of that on a road bike. Plus, a road bike allows you to shift your body, and hence your muscle groups while you are climbing. A TT bike does give you that variability (normally).
Now if you look at the climb cycle - the up and the down - then the TT bike wins most of the time, assuming that the decent is not technical and you can stay aero during the decent.
"...the street finds its own uses for things"