
Originally Posted by
SadieKate
Knotted, I thought a bit more about the geometry of a bike and yes, you are correct in that the reach can get shorter when raising the bars – because of the angle of the head tube. Making this simple point would have kept the conversation to a discussion.
I’m being frank and honest because I simply don’t want my statement that “raising the bars doesn't really affect the reach” to stay there and mislead someone. But most of us respond better to the how and why of a result rather than just being battered with it. I apologize for confusing the reach/rise measurement, but I won’t for interpreting your comments about bar height as recommendations for raising the bars above the saddle. I’m not the only one who thought this way; they just didn’t state it publicly on the forum.
So in a reasonable discussion . . . 3 cm seems like a lot of difference so I have to wonder if it was the combo of three things: a shorter stem than was on before, raising the stem and any rise of the stem. Since you used a longer stem (90cm) than the originally requested 80 cm you may have kept the reach the same as that achieved by an 80cm left down at saddle height. We didn’t even discuss stem angles which adds a whole ‘nother degree of complexity to the problem. Traditional old school road bikes always had horizontal stems, so I didn’t even think to go there.
And, on the topic of raising the bars, I always think that such discussions should clearly state the pros and cons: It can solve neck and back pain. It can be more comfortable for some people. But the more upright position can mean loss of power, loss of aerodynamic efficiency and a whole lot more weight on your butt which can be painful to other people. These are personal preferences that are generally dictated both by one’s riding style and by the bike’s geometry. It's a personal choice. I really don’t care if someone wants to have their bars up in the heavens, but they need to know the pros and cons – and it simply wasn’t clear from your posts.
I never thought of any of the reach/geometry/raising the bar stuff. Didn't know any of that.
I didn't know the reach would get shorter when I raised the bars. I never said that.
I only did what my LBS recommended.
I had nothing to state and no "simple" point to make, because I didn't know any of that.
I didn't know the conversation was anything other than a discussion.
I never told anyone to raise their bars.
Thank you for educating me on all these things I didn't know.
Have a nice weekend.
Edit: I figured 120mm minus 90mm equals 30mm. Therefore, dividing by 10, I come up with my reach shortening by 3 cm with my nice new stem. I see, back a few posts, I accidentally hit a "2" instead of a "3" when reporting measurements. I certainly hope all these amazing educational developments weren't caused my my clumsy ring finger.
Last edited by KnottedYet; 08-03-2007 at 08:43 PM.
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson