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• The highly-anticipated Biktrix Ultra FS Electric Fat Tire bike is finally here, and its loaded with enough features that will make other bike brands envious. The Biktrix ULTRA FS is a full suspension bike that has some of the best components you’ll see on the market today. It runs on a 1000W (1500W peak) Bafang Middle Ultra Motor with a torque sensor and a 48V*11.6AH 3400mah LG Cells Integrated battery. The Biktrix ULTRA FS is also equipped with top of the line specifications such as a 6061 Aluminum-Alloy Frame, Front and Rear Spainga lights, and an optional RST Renegade Fork or Wren Inverted Suspension. And with its massive 26” x 4” fat tires, the Biktrix Ultra 5S will surely help you rule the outdoors.

• Equipped with a heavy-duty 1000W (1500W peak) Bafang Middle Ultra Motor with a torque sensor, making it one of the strongest bikes in the market today.
• Standard 48V*11.6AH 3400mah LG Cells Integrated battery with a 48V*17AH battery or a 48V*20AH battery optional upgrades.
• Durable 6061 Aluminum-Alloy Frame.
• Optional RST Renegade Fork or Wren Inverted Suspension.
• The wheels come in three sizes; 26” x 4”,  27.5” x 3”, and 29” x 3”.
• Handy front and rear Spainga lights for added visibility when biking at night or during rainy days.

Wheel Options:

Wheel Options: