Chain ring kit osymetric 110mm standard for road bike 50/38 teeth black

O.SYMETRIC Chain wheel kit • oval shape for optimized motion sequel • material: aluminum Advantages • death-center can be overcome more easily • a higher gear ratio is easier to ride • higher efficiency, meaning reduced hear frequency at same power input • chronical knee pressure is reduced • muscles work easier, as well as the cardiovascular-system • higher uphill speed (ca. 5 sec. gain per km) • higher speed on flat tracks (ca. 3 sec. gain per km)