Back pain advice - close to tears

Shtukka
Shtukka Posts: 59
edited February 2015 in Road general
Guys, I'm looking for any ideas about how I might improve the lower back pain I experience. A shift to a new bike mid year (planet X RT57 from Ribble 7046) hasn't helped. I recall this as a very mild issue on my earlier bikes but I've tinkered fairly extensively with my setup but can't stay comfortable.

Pretty much every ride for the last year (probably longer) over an hour result in this pain. It's somewhat related to intensity: an hour on the rollers is fine without a twinge, but it was the limiting pain after 50 minutes last weekend. I'm now at the point where this pain is becoming the limiting factor in how hard I can press and it's just blinking miserable.

The pain is on the lower right side of my back muscles, probably the multifidus if the diagrams I've looked up are about right.

I've tried
- raising the handlebars, shorter+higher stem, adding 4 spacers and rotating the bars up a lot (sacrificing a lot of aero)
- raising/lowering saddle
- tipping saddle back/forward, moving it fore/aft
- cleat position back/forward.

The above was turning into a very non-aero ride so I switched last week to regulation stem, no spacers, slight forward tip to the seat in a desire to reduce the hip angle. It's proper roadie now, and seems to have made no difference whatsoever. (Hard to say though... it's possibly worse)

Am out of ideas, pretty much in tears at the frustration of it all and on the verge of chucking it in. :cry: . I'm in decent general shape, 6ft and 14stone.

Any tips before I throw my carbon fibre out the window?