Atlis Sigma

2025 Altis Sigma

The 2025 Altis Sigma is a high-performance electric dirt bike designed for serious off-road riders. Featuring a 98V 35Ah Samsung 50S battery, a 22kW hairpin motor, and a lightweight forged aluminum frame, the Sigma delivers instant torque, smooth power, and race-ready performance. Available in two configurations — Sigma (19″ front & rear wheels) for maximum speed and stability, and Sigma MX (19″ front / 16″ rear) for tighter handling — this bike combines versatility, control, and cutting-edge technology for off-road enthusiasts.

With features like a 3.5″ TFT display, reverse gear, five levels of regenerative braking, and motocross-grade suspension, the Sigma sets a new standard in electric off-road riding.

Key Specifications:

• Motor: 22–23 kW peak (27–30 HP) Hairpin Motor

• Torque: 605–650 Nm (with 44T sprocket)

• Battery: 97.2V 35Ah Samsung 50S cells (3.402 kWh), removable

• Controller: 450 Phase-Amp

• Top Speed: Factory limited to 20 mph (~32 km/h) / Unlockable to ~113 km/h

• Charge Time: 80% in 2 hours, 100% in 3 hours (AC 110V/220V, 12.5A)

• Weight: ~185 lbs (84 kg) with battery

• Seat Height: 33 inches (840 mm)

• Wheelbase: 51 inches (1,295 mm)

• Ground Clearance: 12 inches (305 mm)

• Suspension: Front 200mm air + dual spring fork, rear 85mm travel with linkage

• Brakes: 4-piston hydraulic, 260mm front / 220mm rear

• Wheels / Tires: Sigma 19″ front & rear, Sigma MX 19″ front / 16″ rear, CST off-road tires

• Drive: 428H chain

• Tech Features: 3.5″ TFT display with NFC/password unlock, adjustable 5-level regenerative braking, headlight with hi/low beam, brake-activated taillight

Performance Highlights:

• Hairpin motor for high efficiency, low heat, and long life

• Adjustable regenerative braking for optimized range and control

• Dual spring front fork and reinforced rear suspension linkage for aggressive off-road riding

• Lightweight forged aluminum chassis for maneuverability and durability

• Reverse gear for easy handling in tight situations

Included with Purchase:

• Invoices provided (registered NZ business)

• 12-month limited warranty (motor, battery, controller)

• Full support for manufacturer-related faults

Delivery Options:

• Shipping NZ-wide (25–40 days)

Please choose carefully. We’re a small business, so we aren’t able to offer refunds or returns unless the product is faulty or required under NZ consumer law. Check our Refund and Returns Policy page for more info.