The Gravital eGravel bikes are now on general sale. The lightest pedelec in the range, the UL 1 Ltd, weighs just 13 kg (~29 lbs). Each bike is fitted with a Fazua Ride 50 system, with a 250 W motor and 252 Wh battery. The motor can assist you at speeds up to 32 kph (~20 mph) for up to 80 km (~50 miles).