lower back position on road bike

[matticus]

I've seen much fewer very old riders out in the last 12 months (stooped or non-stooped). I don't think I need to spell out the likely reason

 

[Cycling_Samurai]

Probably BOTH of them are 'wrong'! Certainly, the one on the left... (In terms of how pros ride today. I assume that positions have now evolved to near-optimum otherwise they would have carried on riding the way that they used to.)

As for the original question... I found that having a convex back like the rider on the left above did make my back ache. I have stretched out more now. Yes, I found my 'soft tissue' took a battering. My answer to that is to tilt the nose of the saddle down slightly.

This picture shows my 'before' (above) and 'after' (below) setups...

View attachment 575550

I recently did the same thing with my road bike. Won't get to test it out until Sunday, maybe.