How can you make an almost perfect all-rounder even better? No easy challenge for the Schwalbe senior developer. The result however, is outstanding. The tread of the Smart Sam is modern and balanced at the same time. The compact central rib provides comfortable rolling; the edged outer lugs guarantee optimized off-road grip. For this reason Smart Sam is reliable in every condition and even rolls well on roads. Performance Rigid Version: With LiteSkin sidewalls Features: SIDEWALLS (Performance Version): LiteSkin which offers light, thin sidewalls, for weight saving and reduced rolling resistance COMPOUND: A. The compact central rib provides comfortable rolling; the edged outer lugs guarantee optimized off-road grip. For this reason Smart Sam is reliable in every condition and even rolls well on roads. Double Defense: The twin protector of High-Density Guard + SnakeSkin. More safety for light off-road tires is impossible. This compound is created using completely new formulas. Schwalbe purchases advanced raw materials only with the worldwide best quality. Basically, Schwalbe has significantly increased the filler content for silica and now controls the mixing process more accurately than ever before. The Addix compounds are characterized by one thing in particular: they solve the trade-off between grip, rolling resistance and wear The lightest option. They forego the Snakeskin technology, but still have the same high pressure resistant tire beads.