HKM-923987 60V 3000W Fat Tire Electric Mountain Bike with 30AH Battery and Shimano 7-Speed Gear

Unleash Every Trail. Engineered for the Bold.

The HKM-923987 Fat Tire Electric Mountain Bike redefines off-road capability by merging a high-output 3000W motor, long-range 60V architecture, and advanced suspension dynamics into a single rugged platform. Conquer steep ascents, glide over loose gravel, and carve through singletrack with precision – all while enjoying the whisper-quiet confidence of electric power. Whether you're navigating urban backstreets or remote mountain passes, this bike responds with instant torque and relentless traction.

Silent Power, Ferocious Response

The heart of the HKM-923987 is a gearless, direct-drive 3000W rear hub motor calibrated for efficiency across the entire RPM band. Drawing from a 60V architecture, it eliminates the complexity of mid-drive chains while delivering peak torque instantly. Intelligent sine-wave controller algorithms minimize cogging and noise, so you hear only the crunch of dirt beneath the 4-inch fat tires.

Endurance Without Compromise

Range anxiety disappears with the 60V 30AH lithium pack. Constructed with automotive-grade 21700 cylindrical cells, the battery maintains consistent voltage even below 20% charge. Ride up to 93.2 miles (150 km) in Eco mode on flat terrain, or push Sport mode and still cover 74.6 miles (120 km) with aggressive throttle use. The smart BMS monitors individual cell voltage, temperature, and cycle life, safeguarding against overcharge, deep discharge, and short circuits.

Precision Shifting, All-Terrain Adaptability

Equipped with a genuine Shimano 7-speed rear derailleur and trigger shifter, the HKM-923987 lets you dial in the optimal cadence regardless of gradient. The wide-ratio freewheel spans from a hill-flattening low gear to a pavement-devouring high gear. Combined with the motor's power, you can climb grades exceeding 30° without breaking a sweat, or pedal comfortably at 20 mph (32 km/h) on flat stretches. The indexed shifting mechanism clicks cleanly every time – no ghost shifts, no chain slap.

FASTACE Adjustable Suspension: Control the Bumps

The rear suspension is a FASTACE hydraulic coil-over unit with external rebound and compression adjustment knobs. Tailor the damping to your weight, riding style, and terrain: soften it for plush comfort on fire roads, or firm it up for responsive cornering on hardpack. Combined with the front suspension fork (80mm travel), the HKM-923987 keeps both wheels planted for maximum traction when the trail gets ugly. The 4-inch wide fat tires act as additional pneumatic suspension, absorbing micro-vibrations before they reach your hands.

Hydraulic Disc Brakes: Stopping Power You Can Trust

Large 203mm rotors front and rear are squeezed by dual-piston hydraulic calipers, delivering consistent bite with minimal lever effort. Whether you're descending a muddy slope or executing a precise stop on asphalt, the modulation allows nuanced control. The system uses mineral oil for reliable performance across a wide temperature range, and the lever reach is tool-free adjustable to fit any hand size.

Built to Endure, Certified for Peace of Mind

The hydroformed 6061 aluminum alloy frame has passed torsional rigidity tests far exceeding typical e-bike standards, earning both UL 2849 and CE certifications. This means the entire electrical system – battery, motor, controller, and wiring harness – meets stringent safety requirements for fire and shock hazards. A double-walled rear rim and stainless steel spokes support a maximum payload of 440.9 lbs (200 kg), making the HKM-923987 suitable for heavier riders or cargo-hauling adventures.

Technical Specifications

Frequently Asked Questions

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