Rim depth for CX: 30 vs 40mm
I’m seriously considering upgrading my CX bike for this upcoming season with carbon wheels and trying to decide what rim depth to go with. The weight difference between both sets I’m considering (Hunt 30 Carbon Disc vs Hunt 40 Carbon Disc) is only 25g, so I’m not concerned about weight. I race primarily in the US mid-Atlantic region, where our courses aren’t too technical and many of them even feature hard-pack, straight sections where a little more aero benefit would be highly welcomed. Chat gpt is trying to sell me on 30mm because it is the all around best option for cx, given its ability to tackle all terrain, being less-impacted by cross-wind, and stability in technical sections. But I think chat gpt is just assuming all CX is like Belgium or New England (i.e muddier and more technical than PA, MD, NJ, VA, DC).
It’s also probably worth mentioning that I just enjoy the aesthetic of deeper rims on a drop-bar bike, which is also pushing me towards 40’s. Maybe feeling like I have a faster bike underneath me will inspire me to take my first win in Cat 3 this season, lol. (This is bulletproof logic, right?!?)
Has anybody ever upgraded to 40mm deep rims in CX and later regretted it due to technical instability, or other reasons?