Evolve Skateboards Carbon All-Terrain Series SPEED: Approx. 22 mph (35 kph) BATTERY/RANGE: Custom designed 36 volt 10ah lithium polymer battery with a range of up to 18 miles  this is riding mostly on harder surfaces with little speed changes. WEIGHT: Approx. 23lbs / 10.5kg REGENERATIVE BRAKING: ABS firm & smooth braking providing power back into the battery with maximum control over speed MAXIMUM RIDER WEIGHT: 220 LBS (100 KGS)