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.
Features:

SIDEWALLS (K-Guard): Natural rubber insert reinforced with Kevlar fibers. A solid puncture protection for tires in the Active Line.
COMPOUND: ADDIX high performance
TPI: All Versions 50 TPI
WEIGHT: 660g
Maximum load: 55kg

ETRTO

SCM8639A: 47-203
SCM8640A: 40-305
SCM8640B: 40-355
SCM8640C: 47-355
SCM8640D: 47-406
SCM8640E: 47-507
SCM8640F: 54-507
SCM8640G: 47-599
SCM8640H: 50-559
SCM8640J: 47-305