I'll first work at tolerating the bar. My concern arose from back pain from this last weekend's ride. Fact is, I had a pretty significant chiropractic adjustment on Friday and then rode pretty hard on both Saturday and Sunday (after being off the bike for over a week). I have a bit of osteoarthritis in my middle back and was feeling pretty gimped after. More regular time on the bike before futzing with my fitter's good work is probably wise.C-40 said:Although most steerers will work fine with 4cm of spacer, if you need that much, you'll get a more rigid setup with 2cm of spacer and the stem in the 96 degree position (instead of 84). If you need both, that's OK too, but I'd work on tolerating a lower bar or get a longer headt tube on the next frame.
FWIW, LOOK frames come with a 15mm extended top on the headset and 3cm of spacer.