The KuKirin S1 Max is equipped with a full set of high-precision industrial-grade bearings, professionally optimized for daily urban riding and long-term frequent use. Adopting a low-friction and high-toughness structural design, the premium bearing set greatly reduces internal friction and rolling resistance between the wheel hub and rotating parts. It enables ultra-flexible wheel rotation, effectively lowering riding effort and allowing for labor-free gliding and smoother acceleration.