• Black Sigma electric bike with gold front forks and rugged off road tires
  • Handlebars of an Sigma featuring a digital speed display.
  • Close-up of the Altis E-Powersports logo on the black side fairings and gold front forks of the Delta model.
  • Black Sigma showing the removable seat being lifted.
  • Black Sigma with a bright LED headlight and gold front forks.
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Altis Australia

Sigma

Sigma

  • Weight
    0KG
  • Power
    0W
  • Max Speed
    0KM/H
  • Battery
    0wh
  • Torque
    0NM
  • Max Mileage
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$7,160.00 AUD
$8,950.00 AUD $7,160.00 AUD
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Body color: Black
Sigma MX Sigma
In Stock — Next Day Shipping
Ships Australia-wide · $350 flat rate
Dispatched from Melbourne, VIC
Afterpay Available
PayPal Accepted
Optional Extras — Melbourne Metro Only Nationwide customers: skip — your bike ships boxed to your door at the flat rate above.
Build + Collect Professional assembly — collect from Cheltenham, VIC
$250.00
Build + Deliver Professional assembly + delivery — Melbourne metro only
$350.00
Local Delivery Only Boxed bike delivered — Melbourne metro only
$100.00
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Altis Sigma Bike

Engineering

BUILT FOR THE TRACK

Purpose-set supermoto geometry keeps it locked in under brakes and ruthless on corner drive. Every input is instant. Every exit is violent.

  • Black Sigma electric bike with gold front forks and rugged off road tires
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FULL SPECIFICATIONS

Performance

  • Max. power: 23 kW (31HP)
  • Torque: 601 Nm (443 ft-lbs)
  • Battery: Lithium-Ion ALTIS PowerPack
  • Battery capacity: 35 Ah
  • Charging input: AC110V/112V12.5A
  • Charging time 20%-100%: 180 min.
  • Charging time 20%-80%: 120 min.
  • Cooling: Air cooled
  • Energy content: 3.402 kWh
  • Electric motor: 98V - Hairpin motor

Chassis Specifications

  • Weight (with battery): 87 kg
  • Wheelbase: 1285 mm
  • Front brake disc diameter: 260 mm
  • Rear brake disc diameter: 220 mm
  • Chain: 428H
  • Frame design: Aluminium alloy forging
  • Ground clearance: 300m
  • Seat height: 840 mm
  • Steering head angle: 26 °
  • Suspension travel (front): 200 mm
  • Suspension travel (rear): 85 mm with linkage
  • Rear Wheel travel: 200mm with linkage
  • Wheels: Spoked wheels with aluminum rims

Battery

97.2V 35Ah (3402Wh) 23kw

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Compare Models

Choose Your Weapon

Same platform. Same power. Different purpose. Find the one built for your ride.

Sigma

Altis Australia

Sigma

Built for the road. Supermoto geometry locks it in on tarmac. Every input is instant. Every exit is violent.

Power 23000W
Torque 600NM
Top Speed 120KM/H
Range 120KM
Weight 87KG
$7,160.00$8,950.00
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VS
Sigma MX

Altis Australia

Sigma MX

Born for the dirt. MX setup tears through trails and tracks. The same fury, unleashed off-road.

Power 23000W
Torque 600NM
Top Speed 120KM/H
Range 120KM
Weight 87KG
$7,160.00$8,950.00
View

Same Heart. Different Soul.

23.0kW
Peak Power
600Nm
Torque
3.4kWh
Battery
87kg
Weight
120km
Range

Differences at a Glance

Feature
Sigma
Sigma MX
Wheel Setup
19″ Front / 19″ Rear
19″ Front / 16″ Rear (Mullet)
Sprocket
39T (Standard)
44T (Larger)
Max Torque
~533 Nm
~601 Nm
Top Speed
Higher (~113 km/h)
Slightly lower (optimised for punch)
Handling
Balanced and stable
Nimble with more rear traction
Primary Use
All-around / Dual-sport
Dedicated Off-road / Motocross

The Mullet Setup

The Sigma MX runs a larger 19″ front with a shorter 16″ rear — known as a “mullet” setup. That smaller rear wheel means a meatier tyre with more sidewall, which gives you better grip and cushioning on loose dirt, rocks, and MX tracks. The standard Sigma runs 19″ both ends for lower rolling resistance and a more balanced feel on sealed surfaces.

Gearing & Torque

The MX comes factory-equipped with a 44T sprocket versus the 39T on the standard. That bigger sprocket gives the MX more low-end grunt — easier to loft the front wheel over obstacles or power out of soft corners. The standard’s 39T allows for a higher top speed and a smoother, more relaxed cadence at cruising speeds.

Seat Height & Geometry

The MX’s smaller 16″ rear wheel lowers the rear profile slightly, making the bike feel more “flickable” in tight wood sections and technical switchbacks. Both bikes share the same heavy-duty aluminium alloy frame and fully adjustable air suspension.

98V Hairpin Motor

Both models share the same 23kW (31HP) 98V Hairpin motor with Samsung 50S cells in a 3,400Wh PowerPack. Fast-charge from 20–80% in just 2 hours. Same heart, different soul.

Which One Should You Choose?

Choose the Sigma if...

You plan on doing a mix of road riding, gravel paths, and general exploration. The 19/19 wheel setup is more versatile for dual-sport use — it rolls faster on sealed surfaces, holds a higher top speed, and feels balanced and predictable whether you’re commuting or hitting fire trails on the weekend.

View Sigma

Choose the Sigma MX if...

You’re a dedicated dirt rider. If your weekends are spent at the MX track or on steep, technical hill climbs, the extra torque from the 44T sprocket and the rear-wheel traction from the mullet setup are worth it. The MX is built to get rowdy — it rewards aggressive riding on loose, unpredictable surfaces.

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Why Globalbike.co

  • Australian Owned

    Proudly Australian owned and operated from Melbourne, VIC. We stand behind every bike we sell.

  • Next Day Shipping from VIC

    Fast dispatch from VIC with next day delivery available. Pickup also available at our Cheltenham warehouse.

  • Factory-Direct Pricing

    We cut out the middleman to bring you the best prices on premium electric bikes — direct from the source.

  • 12-Month Warranty

    Every bike comes with a comprehensive 12-month warranty. Ride with confidence knowing you’re covered.

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Frequently Asked Questions

What is the Altis Sigma Bike?

The Altis Sigma bike is a high-performance electric and off-road capable bike designed for riders who want power, speed, and durability. It is built for both adventure and performance riding.

What are the key features of the Altis Sigma bike?

The Altis Sigma bike typically includes:

- High-performance motor

- Long-lasting battery

- Durable frame design

- Advanced braking system

Can the Sigma be used as a sigma road bike or speed road bike?

While the Sigma can handle smooth road surfaces, it is not designed as a sigma road bike or a speed road bike. It is primarily built for off-road performance, featuring thick tires, strong suspension, and a durable frame for rough terrain.

What makes the Sigma a professional cycling bike?

The professional cycling bike design of the Sigma includes advanced engineering, durable materials, and high-performance components that support long rides and challenging terrains.

How long does the Sigma bike battery last?

Battery life varies depending on usage, terrain, and riding style. Most sigma performance bikes are designed to last several hours on a full charge under normal conditions.

How long does it take to charge the Sigma bike?

Charging the Altis Sigma bike usually takes around 4 to 8 hours, depending on the battery capacity and charger type.

Where can I buy the Altis Sigma bike?

You can find the Altis Sigma bike for sale directly on the official Globalbike.co or through authorized dealers, ensuring you get a genuine bike with full warranty and support.