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-roadgrip. 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: ADDIX high performance TPI: All Versions 67 TPI WEIGHT: 27.5x2.25 - 830g / 27.5x2.6 - 930g / 29x2.25 885g Please note that Schwalbe items marked as Special Order will be a delivery time of 7 days.