Biktrix Juggernaut FS Step-Thru Fat

The Juggernaut FS Step-Thru Fat delivers full-suspension, fat-tire performance in a step-through frame, powered by the Bafang Ultra M620 at 1500W continuous (200Nm torque). The 52V 25Ah 1300Wh battery provides up to 100km of range on a single charge, expandable to 160km with the optional range extender. Tektro E725 quad-piston hydraulic brakes, 140mm front fork, DNM AO-38RC rear shock (53mm), and SRAM NX 11-speed drivetrain make this one of the most capable step-through e-bikes available.

In brief: 1500W Fat Tire. 52V 25Ah battery. Class 2 (Throttle 32 km/h). Up to 32 km/h. Aluminum frame.

Specs verified Oct 16, 2026

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Biktrix

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Price History

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Current best price $4,199.00. Over the past 90 days: low $4,199.00, high $4,199.00, average $4,199.00 — about average.

Biktrix

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Specifications

Classification

E-Bike Class: Class 2 (Throttle 32 km/h)
Bike Type: Fat Tire

Motor

Motor Position: Mid-Drive
Wattage: 1500W
Torque: 200.00 Nm
Top Assist Speed: 32 km/h

Battery

Voltage: 52.0V
Capacity: 25Ah
Energy: 1300Wh
Chemistry: Li-ion
Estimated Range: 100 km – 100 km
Removable: Yes

Frame & Build

Frame Material: Aluminum
Frame Style: Step-Through
Wheel Size: 26" x 4" (Fat)
Folding: No

Drivetrain & Brakes

Gears: 11-speed
Drivetrain: Derailleur
PAS Levels: 5
PAS Sensor: Cadence + Torque
Throttle: Yes
Brakes: Hydraulic Disc

Features

Max Payload: 120 kg
Suspension: Full Suspension
Integrated Lights: No
UL Certified: No

Physical

Weight: 37.3 kg

Replacement Parts

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