Kiprun KS900 2 vs On Cloudsurfer Max

The Kiprun KS900 2 and On Cloudsurfer Max are both max-cushion attempts that deliver a surprisingly similar ride character: protective, reliable, and more focused on smooth consistency than bounce or excitement. They work best as easy-pace daily trainers when the run stays on the shorter side, and they have a nearly identical weight. The Kiprun fits narrower, while the On tends to feel a bit more accommodating. Where they start to split is how the cushioning holds up over time. The Cloudsurfer Max feels more cushioned right out of the gate, but the underfoot performance tends to drop off more sharply as the run drags on. The KS900 2 doesn't feel quite as plush at first, yet it fades more gradually, delivering a steadier decline in absorption.