Fitting record-keeping?
I want to find a template to use to record the different steps in my evolving bike self-fitting. There used to be one in an earlier edition of Zinn's book on road bike maintenance, but in the current one I have, it has vanished. Anybody know of something floating in the Web ether? Too lazy to write my own, this time.
Try to use da Webz constructively: Google "bicycle fitting template" Here's one: https://www.parktool.com/assets/img/...sitionroad.pdf And another: http://www.pbmcoaching.com/documenti...ike-equipment/ yet another, and in my town!: www.med.umich.edu/medsport/services/bikefitting.html https://bikefitadviser.com/ |
I simply write down my changes in my cycling log. (It's gotten to the point that I'm changing my fit pretty much every ride now.) This can help in that it shows, for example, if after a change was made, your average speed is a couple MPH less, than you made a wrong change.
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Yeah, one of my purposes is to write down my baseline, then each change and try to make only one at a time to make sure I can clearly see the effect.
But I've never been good at keeping a log. I'm trying to nail it in for comfort on long rides. |
Originally Posted by Road Fan
(Post 20496187)
I want to find a template to use to record the different steps in my evolving bike self-fitting. There used to be one in an earlier edition of Zinn's book on road bike maintenance, but in the current one I have, it has vanished. Anybody know of something floating in the Web ether? Too lazy to write my own, this time.
Try to use da Webz constructively: Google "bicycle fitting template" Here's one: https://www.parktool.com/assets/img/...sitionroad.pdf And another: Documenting Your Bike & Equipment « Bicycle « PBM Coaching yet another, and in my town!: www.med.umich.edu/medsport/services/bikefitting.html https://bikefitadviser.com/ A question or two, if anybody knows more about this. The pbmcoaching diagram makes sense to me, but I don't quite get the measurement of the saddle height (length "A") on the parktool diagram. It's measuring from the bottom bracket to some vague point behind the saddle? That must not be right. What exactly is the reference point, then? The other links (umich, bikefitadvisor) don't lead to diagrams that I can find. Can anybody point to any other suggested standard measurement templates? Background: I'm trying to match the fit on two road bikes, but they have different seat tube angles, so I need a standard reference point on the saddle to aim for. I've seen people suggest something like 60% of the length from the nose to the back of the saddle. I like the pbmcoaching suggestion of measuring to the 80 mm width. |
I've been using the Park Fit Template for 6-7 years and recording the fit. Over that time span It can be seen how the fit has changed as my cycling fitness has changed. My position is longer and lower these days but I would not know that without the template.
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Originally Posted by MinnMan
(Post 21005194)
Background: I'm trying to match the fit on two road bikes, but they have different seat tube angles, so I need a standard reference point on the saddle to aim for.
Various road bike seat tube angles are not so so radically different that the height will be different by a significantly measurable amount. However, to be more precise mark the top of the saddle of the first bike you measure after it is setup to your fit. Mark the saddle of the other bike in the same place and measure height to that point. Keep in in mind that bikes with different geometries may fit and feel different. So in the end, your best fit may be different on each bike. Also, you may need to adjust for different saddles if the shapes and sizes are different. Transferring fit measurements from one bike to a differently designed bike is probably best used as a starting guide and not necessarily as a final fit. Good luck! |
Originally Posted by Sapperc
(Post 21013848)
To set up both bikes so that your position over the cranks is the same, measure saddle height from the center of the crank (pedal if crank arms are different length) to the top of the saddle along a line that runs through the center of the seat tube, and measure the saddle set back parallel to the ground to a line that runs perpendicular to the ground from the tip of the saddle to where it intersects with the center of the crank.
Various road bike seat tube angles are not so so radically different that the height will be different by a significantly measurable amount. However, to be more precise mark the top of the saddle of the first bike you measure after it is setup to your fit. Mark the saddle of the other bike in the same place and measure height to that point. Keep in in mind that bikes with different geometries may fit and feel different. So in the end, your best fit may be different on each bike. Also, you may need to adjust for different saddles if the shapes and sizes are different. Transferring fit measurements from one bike to a differently designed bike is probably best used as a starting guide and not necessarily as a final fit. Good luck! |
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