Q: Is a 21 too much wheel if I sometimes hit rough roads?

A 21 trades a little sidewall for sharper looks and response, so on genuinely broken pavement it’s firmer than a 19 or 20. If your roads are mostly good, it’s a great everyday choice. If you regularly deal with potholes or head off pavement, a smaller diameter with more sidewall, like our 19-inch CYBRHEX-family options via the UP-05 package, protects the wheel better. Match diameter to your worst roads, not your best.