I got the Syncros 31s (20 mm) at the start of last season and rode them my first two races. Everything else about them was right - - nice leverage, 9° sweep, etc. but they didn't "feel" right; although I couldn't put my finger on it at the time. My second race culminated in that HUGE endo off the Seattle Line at Beacon (that you may have seen video of earlier this year).

My next race was the ProGRT at Port Angeles, WA and I left the bars on for my first two practices. Whole bike felt sketchy in the big steeps and I figured out why: just like you said, ed, with my wingspan stretched wider and the minimalist rise, it was biasing my weight uncomfortably over the front end. Felt like I was on the verge of OTB too many times. Went back to my 38mm rise 745 Sunline bars (5x9 sweep) and it's like you threw a light switch. Bike instantly felt at home again and felt like I was in control of the course.


Setup to date: 47mm zero-rise direct-mount stem (adjustable to 42), 745mm bars/38mm rise/5° upsweep/9° backwseep.