20" x 4" fat tires also provide good grip and excellent shock absorption. Battery: 60V 30Ah/ 1800Wh. Shengmilo S900 Electric Mountain Bike，150N. M Motor, 60 V 30 Ah Hydraulic Oil Brake,7 Speed Gears,20 x 4.0 Wide Tyre,Double Shoulder Shock Absorber,Adult Mountain Electric Motorcycle Bike.
eBay