Well your back is stretching out a little bit more than you are used to....bing! said:so I switched my stem from 50 mm to 70 mm to help with climbs.
after 1 hour on the bike, I am getting lower back pain.
I think I should move my seat forward, what do you think?
Core conditioning also has a bearing on this , if you lack it , it is well worth improving it . Good luck .bing! said:This is my second week on the new stem. First was killer, this week, not so much but it was there.
Thanks guys, will give it a shot for a few more rides before I do any adjustments.