Aero position hurts my shoulders

I recently bought a used triathlon bike, my first. Used the Fast Bike Fit App this weekend to try to get in the ballpark with a basic position profile. Here's the video of my first trial.

https://www.youtube.com/watch?v=QcithKZbmgs

Based on feedback I got from a couple locations, I lowered the seat about a cm from where it was in the above video.


I tried to do my first actual workout on the bike this morning and am having a problem with shoulder pain in the aero position. Specifically at the front of my shoulders, in the area of the long biceps tendon. The aero bars were in the most inward position to start, but the pads were at the widest position relative to the aero bars. It hurt right away. I moved the aero bars out ~ 2cm each, only got a little relief. Moved them out as far as they'd go (about another ~2 cm each), and it helped a little, but not much. I started uncomfortable, but within 5 minutes discomfort grew to pain again. I really couldn't hold aero position for much more than that. Tried different vertical angles for the aerobars, but it made no appreciable difference. I was very conscious not to be gripping the bars. I had my hands in a relaxed position over the ends, and minimal tension in my forearms (unlike in the original video).

So, is this a common issue for someone new to a triathlon/TT bike? Do I just need to get acclimated to the position? Are there stretches I should be doing? Or is it possible I'm just too broad shouldered for the range of position available with this base bar/aerobar position? FWIW, I come from a competitive swimming background and, while not extreme, do have the prototypical "broad shouldered swimmer's physique"....well, except for the 6 pack which hasn't been seen in a number of years.

Couldn't get any video this morning, but maybe tomorrow I can get some head-on footage, weather permitting. I have to be able to open the garage door to get enough light in.

Thoughts?


Edited by gary p 2017-03-06 2:16 PM