I just had a bolt sheer as well. I'm pretty frustrated overall so far. Got the new post piece, which isn't really all that easy to just replace since I will now have to go back to a mechanic to cut it down for replacement (more $$! and time I don't have, which is awesome!) and I after some back and forth with their customer service about having to rig my set up on the small Felt I own and wanting to return the brake (asked twice) I bought with it since it will not fit my set up being that it's completely slammed and as far forward as possible (whole reason I bought it), their last reply was not how to return it, but replied with pictures of some guy posting his perfectly set up "what they believe is the same size IA" rig. Except I'm not so sure since the it sits up super high, not the same situation AT ALL. My brake would probably fit if I didn't have to slam down the front end. Still have the brake and very squeaky, aero pads with way more give than they should. Worst part is I think the position is decent and I like the pads, so hopefully, once I can find the time and a local mechanic to cut the new post, it will help with that and likely sell the brake second hand. But if you have a Felt IA 48" and need to slam down the front end and push the pads to the farthest out for positioning...I'm not sure I'd go through the hassle again.