Evolve Bamboo Series Street Electric Skateboard TOP SPEED: Approx. 23m/hr or 38km/hr BATTERY/RANGE: Custom designed 36 volt 7ah lithium polymer battery with up to 19 mile range/charge for 185 lb rider (varies depending on rider weight and terrain/inclines) WEIGHT: Approx. 17.5 lbs(8kg) REGENERATIVE BRAKING: ABS firm & smooth braking providing power back into the battery with maximum control over speed.. MAXIMUM RIDER WEIGHT: 220 lbs