I was cleaning my bike this morning (in preparation for tomorrow's ride at Boyette), and discovered what appear to be two cracks on my new Thomson X4 stem. The cracks are on both the upper and lower clamp portion of the stem; the part that actually clamps around the fork steerer tube. At first I thought they were mere scratches, but upon closer inspection...
I suspect that Thomson will say it is due to over tightening, but I always use a torque wrench; unless I'm on the trail which rarely happens
Anyway, I was wondering if anyone else out there has experienced something like this