After-sales: One-year after-sales guarantee. ???? SHENGMILO S900 250W Off-Road Electric Bike – 60V 30Ah Battery. Conquer any terrain with the powerful SHENGMILO S900 Electric Bike, built for performance, endurance, and adventure. Whether you’re commuting, trail riding, or exploring the wild, this e-bike delivers top-tier features in one rugged package. Mileage of Pure Electric. Aluminum alloy all inclusive mudguard. Net Weight of the Bike. 4.0 Fat Tire. Front and rear shock absorbers.