Kris Stallenberg 90-min Z2 (Endurance) Medium #09 This workout is a foundational endurance ride punctuated by very brief, high-cadence 'form sprints'. These short bursts are not about generating massive power but about activating neuromuscular pathways and improving pedaling mechanics. The primary focus remains on accumulating time in Zone 2, per the Coggan Power Zones, to build your aerobic engine, with the sprints serving to break up the monotony and enhance coordination. bike