Vibration has been on my mind. When designing the All Sport and Gravel wheel lines, we aimed to prove that a wider internal rim width lowered your rolling resistance. During that process, we ran hundreds of tests at different tire pressures, tire sizes, and internal rim widths. After these tests proved our theory correct, our All Sport and Gravel wheels were designed with wide internal rim widths to make you faster.
While testing on-road rolling resistance, I acquired a greater understanding of how tire pressure affects the vibration of the bike and how that vibration affected me, the rider.
When you’re riding a bike on the road, you eventually hit an impedance break point. When this point is reached, your rolling resistance spikes, slowing you down. (Read here for more information on impedance break points.) What was interesting was that it also felt like vibration increased at the break point.