I think you saddle is slightly too high and may be causing your hips to rock. What is the saddle angle? Tip Down? Saddle is Fizik Arione Tri, position is level with the nose 2cm forward of BB (perhaps 80 degree)
I would lower the stem on the steering tube. Target is HIM/IM, I don’t know if I could go lower.
Take a picture with your knee at the 3 o’clock position (where is your saddle on the rails? what is the saddle?) Picture follows
How are the pads set on the bar? The little bracket under the pad facing forward or back? Pads are directly on the braket (without the 1 cm spacer), the bracket is facing backward.
Do you have the bars in the top or the bottom position? Top Position
"Hopefully, Cerveloguy will come in with his goniometer and see about your knee angle…seat looks too high to my eye. "
I’ll print off the photo later and measure up with my trusty protractor. On intitial look I’ve gotta agree that the seat does look a bit high. Wont’ know until measuring the knee angle but notice the heel position also.
I believe static photos aren’t 100% accurate but are good to ball park the position.
I’m guestimating the position of the greater trochanter of the hip and measure about 155 degrees of knee bend. This is what Slowman recommends on a tri bike but I’ve always found my hips rock too much at that angle. Also note that the heel is high. If it was more neutral it would probably be higher number on the knee measurement which again suggests a high seat.
The other angles are all around 90 degrees so don’t seem all that far off.
I’d suggest lowering the seat 1.5 -2 cm to start and work from there. Also you could remove one of spacers to lower the base bar just a bit as was suggested. Do another photo and repost.
I don’t feel that my hips rock too much, but perhaps that angle forces me to pedaling too much with a “toes down” aspect, as said by Dan in his Tri bike fit article, what do you think ?
The tricky parts of calculating saddle height by Method Two are: 1) you really need a second person to do this; and 2) your pedaling technique is going to effect this—if the aspect of your ankle is not correct during the pedal stroke it can cause your seat height measure to be off. If, for example, you’re pedaling too much with a “toes down” aspect—if you have to stretch to reach your pedals—you might think your seat height is correct by virtue of your knee ankle when in actuality your seat would be too high.
I also measured about 150 to 151 degrees knee/leg angle.
I ride at 153 degrees and don’t have any rocking issues.
Looks like you’ve already lowered your handlebars by putting the spacer on top of your stem. Don’t know if I’d go any lower than that. I think it looks good, but I’m not a certified fitter. If you did it yourself, you’ve got a good start.
Looks like you’ve already lowered your handlebars by putting the spacer on top of your stem. Don’t know if I’d go any lower than that. I think it looks good, but I’m not a certified fitter. If you did it yourself, you’ve got a good start.
Yes, I did it myself ;-), with the 2cm spacer I have the same position used in 2004, I transferred the fit to this bike and cut-long the fork post (just in case…), I’m looking for to better that position.
Yes, put the arm rest one slot behind and adjust the extensions accordingly. After doing this yuo need to verify on the road that your knees don’t hit the armrests while out of the saddle.
You really need to take this picture w/ your legs spinning at about 85 rpm while using a resistance trainer.
Looks like you might be pointing your toe here, but its hard to tell. Things can be quite different while your legs are moving.
Have your girl take the picture using a digital camera in burst mode. She may have to take about 50 shots to get the one where your leg is at bottom dead center of your stroke based on your relative seat angle.