Top Tube Angle
j_vora
Posts: 63
in Road general
Hello All :
My first post on this forum -
Why do many road bikes now have a sloping top tubes rather than ones that are parallel to the ground ? What are the benefits of this relatively new geometry ?
In addition, I’ve noticed that within the same model of a road bike, the smaller sized frame, say a 51cm, has a top tube that slopes at a larger angle than say a 54cm or 57cm, etc. Why is the slope angle within that model not kept the same ?
Wish to get a better understanding.
Thanks in advance.
Jai
My first post on this forum -
Why do many road bikes now have a sloping top tubes rather than ones that are parallel to the ground ? What are the benefits of this relatively new geometry ?
In addition, I’ve noticed that within the same model of a road bike, the smaller sized frame, say a 51cm, has a top tube that slopes at a larger angle than say a 54cm or 57cm, etc. Why is the slope angle within that model not kept the same ?
Wish to get a better understanding.
Thanks in advance.
Jai
0
Comments
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It’s hardly new having been around for at least twenty years. Frames are lighter and more rigid.0
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I have a level top tube because it looks better0
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Until you add on a saddle and longer seatpost.webboo said:It’s hardly new having been around for at least twenty years. Frames are lighter and more rigid.
The above may be fact, or fiction, I may be serious, I may be jesting.
I am not sure. You have no chance.Veronese68 wrote:PB is the most sensible person on here.0