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Slowman etc... How is riding steep defined?
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Hello,
Quick question here. I have read all of Dan's fitting articles. It's very helpful and quite clear.
What I can't find, is a way to find the angle that someone rides at in the actual position on the bike. I can see where seat angle is defined as going from the bottom bracket to the middle of the saddle rails. However there is a huge range of variation in where we sit on the saddle.

Is there a convention for measuring the angle that a person is actually sitting at on their bike? I'm thinking something like the angle from the bottom bracket through the hip joint.

Also, I'm wondering if Dan or anyone else has info about what the standard range would be?

Thanks,
Kyle
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Re: Slowman etc... How is riding steep defined? [KWTri] [ In reply to ]
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Bump!
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Re: Slowman etc... How is riding steep defined? [KWTri] [ In reply to ]
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Anyone?
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Re: Slowman etc... How is riding steep defined? [KWTri] [ In reply to ]
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We have a "Sitting Angle" metric in our 3D software that is BB to hip joint, averaged over the pedal cycle.
Generally a good tri position is ~85deg
I'd class slack as being less than 80deg.
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Re: Slowman etc... How is riding steep defined? [cyclenutnz] [ In reply to ]
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Thanks cyclenutnz,
That's exactly what I was asking. Do you happen to have any data for what able would be too steep?

Kyle
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Re: Slowman etc... How is riding steep defined? [KWTri] [ In reply to ]
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I'm trying to do a bike fit in my own. I'm wondering if I'm going too far with certain measurements.

Kyle
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Re: Slowman etc... How is riding steep defined? [KWTri] [ In reply to ]
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Steepest I've seen was 89, pulled him back as it wasn't working.
Have never tried pushing the boundaries - can't get bikes to work with those positions.
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