Total System Efficiency

How the four parasitic forces affect different types of bikes, riding positions and styles

Zipp’s design direction is called ‘Total System Efficiency’ or TSE. The idea is to identify the needs of each type of rider and the corresponding riding conditions and tweak the design accordingly. Wind resistance Power loss created by the resistance of the air. More prevalent as the speed increases Gravity Power loss created by the weight of the bike and components. More prevalent as the slope increases Rolling resistance Power loss created by the friction and deformation of the tyres on the ground. Depends on tyre performance, but also tyre contact tyre patch and pressure Vibration losses Power loss created by vibrations from the road, that induce a vertical motion on both the bike and rider. More prevalent when the surface becomes rougher…

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Cycling Plus (Digital) - 1 Issue, October 2022

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