Saddle setback for dummies
I have a DYI monster-cross (MTB frame with drop bars), got it fitted by an LBS, I have no reason to doubt their expertise. But...
Basically, I was absolutely out of shape 6 months ago, the handle bars were raised a lot allowing me cycling in almost a hybrid bike position. Kind of pointless, but I could still drop to the lower parts and have fun. however I am more comfortable now to get lower into more aero position, so I I dropped them bars by ~5-7cm, probably still have extra 10cm to drop in the future without lowering it below the saddle line. :lol: Anyway, this is where I am getting confused with the feeling of the saddle position:
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Originally Posted by alexk_il
(Post 22902068)
Anyway, this is where I am getting confused with the feeling of the saddle position:
My only suggestion is, by increasing saddle setback you are increasing the distance between the butt end and your pedals. Instead of increasing saddle height, you might want to be decreasing it. Or perhaps your bike dealer set the saddle a little low in the first place to accommodate your beginning skill level. I can't see you on the bike, but if you feel like you have to rock your hips or point your toes to finish the stroke, or if the saddle feels like it's driving a wedge up your perineum or you feel out of balance, you're probably too high. And a little too low is better than a little too high, especially on a mountain bike. |
First, I'd talk to the bike fitter and ask the reasons they put you where they did.
Perhaps they thought your preference was for one thing but you really want another. Comfort and power don't always quite go hand in hand with your fit. Or the way you actually ride the bike. |
Originally Posted by oldbobcat
(Post 22902101)
Basically, your body tries to balance itself over your feet. The lower you drop your torso, the farther back your hips want to go to avoid falling on your face, or at least doing pushups with your arms to support it all day long.
My only suggestion is, by increasing saddle setback you are increasing the distance between the butt end and your pedals. Instead of increasing saddle height, you might want to be decreasing it. Or perhaps your bike dealer set the saddle a little low in the first place to accommodate your beginning skill level. I can't see you on the bike, but if you feel like you have to rock your hips or point your toes to finish the stroke, or if the saddle feels like it's driving a wedge up your perineum or you feel out of balance, you're probably too high. And a little too low is better than a little too high, especially on a mountain bike.
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[QUOTE=alexk_il;22902838
Thanks[/QUOTE] You're welcome. While I came up with this theory decades ago from observation of successful riders, ski racers, surfers, tennis players, volleyball players, and baseball players, and personal experimentation, here's Ozzy bike fitter Steve Hogg's take on it. https://www.stevehoggbikefitting.com...or-road-bikes/ |
Take note that Hogg's isn't saying you shouldn't ever have any weight on your hands. He just saying that when pedaling at a very high power output that you should be able to briefly take your hands off the hoods or bars and put them behind you.
For lower power applications your arms and hands will be supporting some of your body weight. I have always liked reading Steve Hogg's approach to fitting a person to a bike. |
Originally Posted by oldbobcat
(Post 22902870)
You're welcome. While I came up with this theory decades ago from observation of successful riders, ski racers, surfers, tennis players, volleyball players, and baseball players, and personal experimentation, here's Ozzy bike fitter Steve Hogg's take on it. https://www.stevehoggbikefitting.com...or-road-bikes/
Originally Posted by Iride01
(Post 22902889)
Take note that Hogg's isn't saying you shouldn't ever have any weight on your hands. He just saying that when pedaling at a very high power output that you should be able to briefly take your hands off the hoods or bars and put them behind you.
For lower power applications your arms and hands will be supporting some of your body weight. I have always liked reading Steve Hogg's approach to fitting a person to a bike. I guess my take away is that I have to find a sweet spot between comfort and performance, can't have both. Thanks. |
Originally Posted by alexk_il
(Post 22903680)
Actually I had a quick chat about that approach with my bike fitter when he was doing all the measurements. He said he was striving to a hybrid approach that optimizes both the pedalling technique and the weight distribution.
I look at my bike position like sitting on a bar stool. If I need one hand to steady myself as I lean forward and use the other to reach for a beer, my hips are too far forward. |
Align the Greater Trochanter of your Femur with the downtube and center of the bottom bracket to get an initial position, and then (re)adjust saddle height and for/aft position until you are balanced.
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excellent fitter!
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Fitting a bike properly is actually quite simple. Here's my fitting primer: https://www.bikeforums.net/21296948-post3.html
Whatever position you are trying to use, just do those steps in order. BTW, more comfort is not necessarily more upright. Almost all long distance riders use the standard road bike position, back at about a 45° angle with elbows slightly bent. It is faster, but mostly because it's more comfortable when trying to produce power. One needs to have the torso out over the feet in order to be able to pedal strongly. Some of that is balance, some is the amount of hip bend. |
Originally Posted by oldbobcat
(Post 22903906)
It boils down to going as forward as you can without causing stress on the arms and shoulders. Some World Tour pros boggle my mind with how forward they're sitting, but they're generating a lot of power on the front of their strokes and they're carrying minimal mass above their hips. But my point is, if you ride with an athletic back angle and you're experiencing arm, shoulder, or back pain, don't think that you can fix it by simply moving the saddle forward.
I look at my bike position like sitting on a bar stool. If I need one hand to steady myself as I lean forward and use the other to reach for a beer, my hips are too far forward. |
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