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Headwinds
03-23-2006, 09:30 AM
Who makes -17 deg. (parallel to the ground) ahead stems these days?

Is there an advantage of using a stem with this angle?
JohnS
03-23-2006, 09:33 AM
Is there an advantage of using a stem with this angle?
Looks?
Richard
03-23-2006, 09:52 AM
I have a Ritchey Pro at -17. I think it is still made. On my bikes, I need it to get the bars where they belong. Plus on level top tube, it looks best to me.
Johny
03-23-2006, 10:06 AM
Who makes -17 deg. (parallel to the ground) ahead stems these days?

Ritchey.

Is there an advantage of using a stem with this angle?

Make your position lower.

For example, between a -17 and a -10 deg stem, the difference is 7 degs.
If you use a 12 cm stem, your handlebar position would be around 1.44cm lower vertically ( sin (7 degs) x 12cm = 1.44cm).
Dave
03-23-2006, 10:13 AM
The 73 degree places the bars as low as possible. This requires the maximum amount of spacer under the stem (compared to an 80-96 degree). If you're using a carbon steerer, spacers are usually limited to 3-4cm.

The 84/96 degree stem has become the most popular becasue it raises the bars about 2cm in the 84 degree position and another 2cm if it's flipped to 96 degrees. While traditionalists usually find the higher angles objectionable looking, others find the huge stack of spacers under a 73 degree just as bad or worse. Personally, I limit my stem angle to 84 degrees and my spacers to 2cm or less.
Headwinds
03-23-2006, 10:19 AM
OK Guys, I am a bit dumb when it comes to geometry. So, can you tell me what angle is equivalent to what?

In other words, is a -10 the same as a 80 degree? What degree, then is a -17?

Is there a formula to convert one thing to the other?
Smiley
03-23-2006, 10:37 AM
Headwinds , 90 degree or 0 degree's is based on this angle to the shaft of the steerer tube. Everything else if + above that for say a + 6 degree or 96 degree's or negative like , - 10 degree's or 80 degree stem , so a -17 degree stem is the same as saying 73 degree's . Make sense :)
11.4
03-23-2006, 01:22 PM
Thomson is coming out with a road X2 stem in that angle. Ritchey currently has their Axis stem in a 73 degree.

Using this design doesn't mean you have to have additional spacers under your stem, as someone seems to have suggested above. It simply means you ride best in a lower position. I use the Axis in a 73 and can recommend it.
CPP
03-23-2006, 01:50 PM
FSA makes the OS 115 in 73 degrees also. The Ritchey is lighter.
CP