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Murf Electric Bikes

The Fat PAX Step-Thru E-Bike | Class 3 Cruiser

The Fat PAX Step-Thru E-Bike | Class 3 Cruiser

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SKU: EB-FMST-BN-UL

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Price: $1,895.00
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Price: $1,895.00

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THE FAT PAX STEP-THRU

The Heritage Cruiser | Pathfinder Pedal


THE ORIGINAL ALL-TERRAIN CRUISER

The Fat PAX Step-Thru didn't just follow trends—it created them. This is the platform that defined the category: a high-voltage electric cruiser that prioritizes "float" and style over pure utility. We paired a robust 52-volt power plant with a timeless 19-inch step-thru silhouette, making it accessible to anyone who wants to ride. The 4-inch fat tires provide pneumatic suspension, smoothing out everything from boardwalk planks to gravel trails. It proves that capability and comfort can look good.

What You're Getting:

  • Timeless Silhouette: Classic beach cruiser curves with a 19" accessible step-over
  • Pneumatic Suspension: 4-inch fat tires act as natural shock absorbers for a "floating" ride feel
  • 52V Torque: Stronger acceleration and hill climbing than standard 48V cruiser systems
  • Class 2 or 3 Flexibility: Cruise at 20 MPH (Throttle) or unlock 25 MPH (Pedal Assist)
  • The "Pax" Feel: Upright, relaxed positioning that puts you in command without aggression

KEY SPECS

Spec Detail
Class Class 2 or 3 (User Selectable)
Motor 750W Rear Hub
Battery 52V, 780Wh
Speed 25 MPH (Class 3 Mode)
Range 30–60 miles
Weight ~75 pounds
Safety UL 2849 & 2271 Certified

WHO'S THIS FOR

Best Fit: All-terrain riders seeking accessibility, cruiser enthusiasts wanting fat tire capability, and anyone who values "ride feel" and comfort above industrial utility.

What You Can Do:

  • Hit 25 MPH in Class 3 mode for thrilling open-road riding
  • Cruise at 20 MPH on throttle only for effortless sightseeing
  • Handle sand, gravel, and light trails confidently with fat tire grip
  • Mount and dismount with grace thanks to the 19" step-thru frame
  • Ride 30–60 miles per charge on long coastal or urban loops

TECHNICAL SPECIFICATIONS THAT MATTER
Specification Detail Why It Matters
Motor 750W Rear Hub Reliable power delivery; responsive acceleration for mixed terrain.
Battery 52V, 780Wh Strong range (30–60 miles); powerful system for all-terrain capability.
Top Speed 25 MPH (Class 3) Thrilling performance; faster than Class 2-only bikes when you want speed.
Classification Class 2 or 3 User Selectable. Flexibility to cruise at 20 MPH or unleash full 25 MPH.
Brakes Tektro Hydraulic Disc Smooth, powerful, reliable stopping power in all conditions.
Drivetrain 7-Speed Shimano Crisp shifting; flexibility for varied terrain and hills.
Tires 26" × 4" Fat Tires Exceptional comfort; pneumatic suspension effect; grip on sand/gravel.
Frame Geometry 19" Step-Thru Classic silhouette; low entry point accessible for most riders.
Weight ~75 pounds Substantial build for durability; stable at speed.
Headlight 550-Lumen 3-LED Bright visibility; integrated for simplicity.
Safety UL 2849 & 2271 Entire electrical system independently tested and verified.

FROM CONFIDENT FEATURES TO REAL-WORLD BENEFITS

Heritage & Design

The Original Platform

This is the trailblazer. The Fat PAX proves that an e-bike can be rugged without looking like a tank.

  • Timeless Design – Curves that evoke classic cruisers, not industrial machinery.
  • 19" Step-Over – A geometry that invites you in. Mount and dismount with confidence and grace.
  • Upright Positioning – High-rise handlebars put you in a relaxed, heads-up posture.

Handling & Comfort

All-Terrain Float

We don't use complex suspension forks—we use physics.

  • Pneumatic Suspension – The massive air volume of the 4-inch tires absorbs vibration and bumps naturally.
  • Mixed Terrain Grip – Pavement, gravel, sand, and light trails are all in play.
  • Stable Footprint – The wide contact patch provides confidence at low and high speeds.

Powertrain

52V High-Torque System

Cruisers shouldn't be slow. The 52V system ensures you have the torque to keep up with traffic and flatten hills.

  • 52V Advantage – Stronger acceleration and better climbing capabilities than 48V competitors.
  • 60-Mile Range – High capacity (780Wh) means you can explore without "range anxiety."
  • Class 3 Capability – Unlock 25 MPH speeds when you need to cover ground quickly.

Control

Hydraulic Precision

When you have a 52V motor, stopping power isn't optional.

  • Tektro Hydraulic Discs – Consistent, powerful braking in wet or dry conditions.
  • 7-Speed Drivetrain – Unlike single-speeds, you can downshift for hills or upshift for speed. You dance with the terrain, not fight it.

REAL-WORLD SCENARIOS

The Coastal Commute

Ride to coffee shop (3 miles, Class 3 pedal-assist for light exercise). Explore beach boardwalk (2 miles, throttle mode). Return home (3 miles, leisurely pace).

The Win: Relaxed, fun, accessible transportation.

The Weekend Adventure

Load light cargo and head out (5 miles, mixed terrain). Explore new trail system (6 miles, Class 2 throttle for safety on rough ground). Stop for lunch. Return home.

The Win: Capable range for a full day out.

The Active Family Outing

Pick up kids/friends. Cruise to park. Explore park trails. Ice cream run. The step-thru frame makes the "stop-and-go" of social riding effortless.

The Win: Social connection without the sweat.


WHAT'S INCLUDED

75% Pre-Assembled.

  • Fat PAX Step-Thru Frame & Fork
  • Motor (750W Rear Hub)
  • Battery (52V, 780Wh Integrated)
  • Handlebars & Stem (Cruiser Style)
  • Wheels (26" × 4" Fat Tires)
  • Brakes (Tektro Hydraulic Disc)
  • Drivetrain (7-Speed Shimano)
  • Display & Controls
  • Lights (Headlight + Tail)

ASSEMBLY & SETUP

The Fat PAX Assembly Video

30-minute walkthrough covering frame assembly, handlebar adjustment, wheel installation, and pre-ride safety checks.

Watch Assembly Video


APPROVED ACCESSORIES

The Fat PAX Step-Thru pairs seamlessly with accessories designed for style and functionality:

  • Kryptonite Keeper Chain Lock – UL-tested security chain. Lightweight, portable, urban-proof.
  • Big Dawg Rack Bag – Weatherproof top-loader for light cargo. Handles groceries, camera gear, weekend essentials.
  • Kroozie Deluxe Cup Holder – Handlebar-mounted cup/phone holder. Responsive to bumps, stays secure.
  • Front Basket – Lightweight . Carries light cargo; complements the classic cruiser aesthetic.
  • Rear Basket – Quick-release rear basket. Compatible with the Fat PAX frame system.

WARRANTY, RETURNS & CLAIMS

2-Year Coverage: We stand behind our build with a 2-year warranty on all electrical components (motor, battery, display, lights). All components are covered under manufacturer defect protection. Proof of purchase required.

Policy & Returns: For complete details on return windows, damage reporting, and refunds, please review our full Return & Refund Policy.

Support: Need to file a claim or have questions? Reach our team directly via our Contact Page.



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