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Altis Sigma MX
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Altis Sigma MX

Altis Sigma MX

$4,795.00

FEATURES:

  • Top Speed: 66+mph
  • Modes: Eco, Sport, Race
  • Battery: 97.2v 35ah
  • Range: 50-60 miles
  • Charge Time: 2-3hr
  • 2.5inch TFT LCD

What’s in the Box

  • Altis Sigma MX eBike (fully assembled, tuned, and tested)

  • 72V 60Ah removable lithium battery (quick-release)

  • Standard charger

  • LCD race display with lap timer (installed)

  • LED headlight & taillight (installed)

  • Heavy-duty 428 chain & CNC sprockets (installed)

  • Toolkit (basic hex keys and wrenches)

  • User manual & quick-start guide

  • Warranty card

 

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Altis Sigma MX eBike – The Ultimate Race-Ready Electric Motocross Bike for Extreme Off-Road Performance

Dominate the track and conquer any terrain with the all-new Altis Sigma MX eBike — the most powerful, race-inspired electric dirt bike in its class. Now available for fast global shipping at bonnellbike.com.

Product Overview

The Altis Sigma MX eBike is the ultimate race-ready electric motocross bike, engineered for riders who demand podium-level performance. Building on the legendary Altis Sigma platform, the MX variant takes everything to the extreme with 15,000 watts of peak power, a massive 72V 60Ah swappable battery, 220mm of MX-tuned suspension travel, and a top speed of 60 mph (96 km/h).

This is not just an e-bike — it is a full-blown electric dirt bike designed for motocross tracks, enduro trails, and extreme off-road adventures. Whether you’re racing against gas-powered 125cc and 250cc bikes or pushing your limits on technical singletrack, the Altis Sigma MX delivers the power, handling, and durability to dominate.

Buy the Altis Sigma MX eBike today at bonnellbike.com and get fast, insured shipping from our warehouses in the USA, Canada, China, and Europe.

Key Features & Benefits

⚡ Insane 15,000W Peak Power — The Most Powerful Altis Ever Built

The Altis Sigma MX is powered by a reinforced Permanent Magnet Synchronous Motor (PMSM) delivering 8,000W rated power and a staggering 15,000W peak power. This is the highest output ever offered in the Altis lineup, producing explosive acceleration that rivals gas-powered motocross bikes. Three selectable ride modes — Eco, Sport, and Race — let you dial in the power curve for maximum control.

  • 0–30 mph in under 2.5 seconds

  • Climbs 45°+ inclines with ease

  • Top speed: 60 mph (96 km/h) off-road

Keywords: 15,000W electric bike, electric motocross bike, fastest electric dirt bike, high-performance e-bike, race-ready e-bike

🔋 Massive 72V 60Ah Swappable Battery — Industry-Leading Range

The Sigma MX is equipped with a removable 72V 60Ah lithium-ion battery — the largest battery ever offered in a production electric dirt bike at 4,320Wh capacity. This delivers an incredible up to 80 miles (130 km) of range on a single charge, depending on riding conditions. The battery is lockable, swappable, and quick-release, so you can swap in a spare and keep riding all day.

Keywords: 72V e-bike battery, 60Ah e-bike battery, swappable e-bike battery, long-range electric bike, 80-mile range e-bike

🏍️ MX-Reinforced Forged Aluminum Frame

The Altis Sigma MX features a reinforced 6061-T6 forged aluminum frame specifically engineered for motocross-level abuse. The frame, swingarm, and subframe have been strengthened with additional gusseting and thicker wall sections to withstand big jumps, hard landings, and aggressive track riding. At 152 lbs (69 kg), the MX is slightly heavier than the standard Sigma — but significantly stronger. The frame is backed by a 5-year warranty.

Keywords: motocross e-bike frame, reinforced aluminum e-bike frame, heavy-duty electric dirt bike, durable off-road e-bike

🛠️ MX-Tuned Fully Adjustable Suspension — 220mm Travel

  • Front: Inverted MX fork with 220mm of travel, fully adjustable for compression, rebound, and air pressure

  • Rear: High-performance MX mono-shock with 220mm of travel, adjustable preload, compression, rebound, and high/low-speed damping

This is the most advanced suspension system ever offered on an Altis e-bike. It is tuned specifically for motocross tracks, big jumps, and aggressive trail riding. The extra travel and adjustability keep the wheels planted and the rider in control on even the roughest terrain.

Keywords: MX suspension e-bike, 220mm travel e-bike, motocross e-bike suspension, full-suspension electric dirt bike

🛑 Race-Grade Hydraulic Brakes — 4-Piston with 220mm Rotors

The Altis Sigma MX is equipped with race-grade 4-piston hydraulic disc brakes paired with oversized 220mm rotors front and rear. This upgraded braking system delivers exceptional stopping power, heat resistance, and modulation — even under the most demanding conditions.

Keywords: hydraulic disc brake e-bike, race-grade e-bike brakes, 220mm rotor e-bike

🖥️ Full-Color Race Display with Data Logging

The backlit full-color LCD race display provides real-time data including speed, battery level, trip meter, odometer, ride mode, motor temperature, and diagnostic codes. It is IP65 water-resistant, sunlight-readable, and features a built-in USB charging port. The race display also includes lap timing and data logging for competitive riders.

Keywords: e-bike race display, smart e-bike display, waterproof e-bike display, motocross e-bike display

🌧️ All-Weather Ready (IP65 Rated)

The motor, battery, and display are all rated IP65 water-resistant, meaning the Sigma MX can handle rain, splashes, mud, and puddles without issue. This is a bike built for real-world racing and riding in real-world conditions.

Keywords: waterproof e-bike, IP65 e-bike, all-weather electric motocross bike

🔄 Adjustable Regenerative Braking

The Altis Sigma MX features adjustable regenerative braking, which recovers energy during deceleration and feeds it back into the battery. This extends range, reduces brake pad wear, and provides additional engine-braking feel on steep descents and into corners.

Keywords: regenerative braking e-bike, e-bike with regen braking, electric motocross bike regen

⚙️ Race-Tuned Gearing & Drive System

The Sigma MX features race-tuned final drive gearing with a heavy-duty 428 chain and CNC-machined sprockets. The gearing is optimized for explosive acceleration out of corners and high top speed on straightaways. The chain guide and tensioner system prevent derailment under extreme conditions.

Keywords: race-tuned e-bike, e-bike chain drive, motocross e-bike drive system

Full Technical Specifications

Category Specification
Model Altis Sigma MX eBike
Motor Type Permanent Magnet Synchronous Motor (PMSM), air-cooled
Rated Power 8,000 W
Peak Power 15,000 W
Peak Torque 320 Nm
Top Speed 60 mph (96 km/h) off-road / 28 mph (45 km/h) restricted
Acceleration 0–30 mph (0–48 km/h) in under 2.5 seconds
Battery 72V 60Ah Lithium-ion, removable & lockable, quick-release
Battery Capacity 4,320 Wh
Range Up to 80 miles (130 km)
Charging Time 6–8 hours (standard) / 3–4 hours (fast charger, optional)
Frame Material 6061-T6 forged aluminum alloy, MX-reinforced
Front Suspension Inverted MX fork, 220mm travel, fully adjustable
Rear Suspension MX mono-shock, 220mm travel, fully adjustable with high/low-speed damping
Brakes 4-piston hydraulic disc, 220mm rotors (front & rear)
Wheels 19″ front / 19″ rear, reinforced aluminum alloy rims
Tires 70/100-19 MX off-road knobby tires
Seat Height 36 inches (914 mm)
Ground Clearance 14 inches (356 mm)
Wheelbase 54 inches (1,372 mm)
Max Load Capacity 350 lbs (159 kg)
Bike Weight 152 lbs (69 kg) including battery
Display Full-color LCD race display with lap timer, IP65 water-resistant
Ride Modes Eco / Sport / Race
Throttle Twist throttle with regenerative braking option
Lighting LED headlight & taillight (brake light integrated)
Water Resistance IP65 (motor, battery, display)
Drive System Heavy-duty 428 chain, CNC-machined sprockets, chain guide
Charger Input 100–240V AC, 50/60 Hz
Regenerative Braking Yes, adjustable via display
Warranty 12 months (motor, battery, controller) / 5 years (frame)

What’s in the Box

  • Altis Sigma MX eBike (fully assembled, tuned, and tested)

  • 72V 60Ah removable lithium battery (quick-release)

  • Standard charger

  • LCD race display with lap timer (installed)

  • LED headlight & taillight (installed)

  • Heavy-duty 428 chain & CNC sprockets (installed)

  • Toolkit (basic hex keys and wrenches)

  • User manual & quick-start guide

  • Warranty card

Altis Sigma MX vs. Altis Sigma vs. Altis Delta vs. Surron Light Bee X

Feature Altis Sigma MX Altis Sigma Altis Delta Surron Light Bee X
Peak Power 15,000 W 12,000 W 10,000 W 6,000 W
Battery 72V 60Ah (4,320Wh) 72V 50Ah (3,600Wh) 72V 40Ah (2,880Wh) 60V 38Ah (2,280Wh)
Range Up to 80 miles Up to 75 miles Up to 60 miles Up to 40 miles
Top Speed (Off-Road) 60 mph 55 mph 50 mph 47 mph
Suspension Travel 220mm (front & rear) 200mm (front & rear) 200mm (front & rear) 200mm front / 85mm rear
Brake Rotors 220mm 203mm 203mm 203mm
Weight 152 lbs 145 lbs 128 lbs 123 lbs
Ride Modes Eco / Sport / Race Eco / Sport / Turbo Eco / Sport / Turbo Eco / Sport
Lap Timer Yes No No No
Price Range High (Flagship MX) High Mid-High Mid

Bottom Line: The Altis Sigma MX is the ultimate electric motocross bike for riders who demand race-ready performance. With 15,000W of peak power, an 80-mile range, and 220mm of MX-tuned suspension, it outperforms every other bike in its class — including the standard Sigma, Delta, and Surron Light Bee X.

Compare more electric bikes at bonnellbike.com.

Frequently Asked Questions (FAQ)

1. Is the Altis Sigma MX eBike street legal?

The Altis Sigma MX is designed primarily for off-road, motocross track, and private property use. Street legality varies by jurisdiction. Some areas allow e-bikes with specific power and speed limits on public roads, while others require registration, licensing, or insurance. Always check local laws before riding on public roads.

2. How fast does the Altis Sigma MX go?

The Altis Sigma MX reaches a top speed of 60 mph (96 km/h) in off-road Race mode. It can be electronically restricted to 28 mph (45 km/h) for areas with speed limits.

3. How long does the battery last?

The 72V 60Ah battery provides up to 80 miles (130 km) of range on a single charge, depending on riding mode, terrain, rider weight, and speed. In Race mode with aggressive riding, range may be reduced to approximately 35–45 miles.

4. Can I swap the battery?

Yes! The battery is removable, lockable, and quick-release swappable. Purchase a spare battery at bonnellbike.com and swap it in under 30 seconds for extended ride time.

5. How long does it take to charge?

With the standard charger, a full charge takes 6–8 hours. With the optional fast charger, you can charge in 3–4 hours.

6. Is the Altis Sigma MX waterproof?

The motor, battery, and display are rated IP65 water-resistant, handling rain, splashes, and puddles. Avoid submersion and pressure washing.

7. Does the Altis Sigma MX have regenerative braking?

Yes! The Sigma MX features adjustable regenerative braking, which recovers energy during deceleration and extends range while reducing brake pad wear.

8. What is the difference between the Altis Sigma and Sigma MX?

The Sigma MX is the race-ready variant with:

  • Higher peak power (15,000W vs 12,000W)

  • Larger battery (60Ah vs 50Ah)

  • Longer range (80 vs 75 miles)

  • Higher top speed (60 vs 55 mph)

  • Longer suspension travel (220mm vs 200mm)

  • Larger brake rotors (220mm vs 203mm)

  • Race display with lap timer

  • Reinforced MX frame

9. What is the warranty?

The Altis Sigma MX comes with a 12-month warranty on the motor, battery, and controller, and a 5-year warranty on the frame. See our full Warranty Policy for details.

10. Do you ship internationally?

Yes! We ship the Altis Sigma MX eBike worldwide from our warehouses in the USA, Canada, China, and Europe. See our Shipping Policy for delivery times and costs.

11. Is assembly required?

No. The Altis Sigma MX arrives fully assembled, tuned, and tested. Just charge the battery, check tire pressure, and ride.

12. Can I race the Altis Sigma MX against gas-powered bikes?

Yes! The Sigma MX is designed to compete with 125cc and 250cc gas-powered motocross bikes. Its instant torque and lightweight design give it a significant advantage off the line.

13. Can I finance the Altis Sigma MX?

Contact our support team at support@bonnellbike.com to inquire about financing options.

Why Buy from Bonnell Bike?

Bonnell Bike is your trusted online retailer for high-performance electric bikes, e-motos, and parts. We are an authorized dealer for Altis, Surron, 79Bikes, and Bonnell brands.

When you buy the Altis Sigma MX eBike from bonnellbike.com, you get:

  • ✅ Fast, insured global shipping from our USA, Canada, China, and Europe warehouses

  • ✅ Genuine manufacturer warranty backed by our dedicated support team

  • ✅ Expert technical assistance before and after your purchase

  • ✅ Secure checkout with multiple payment options

  • ✅ Access to genuine parts, upgrades, and accessories — batteries, controllers, suspension, tires, and more

  • ✅ Responsive customer service — real humans, real answers

Shop with confidence at bonnellbike.com.

Order Your Altis Sigma MX eBike Today

The Altis Sigma MX eBike is in stock now and ready to ship. Due to high demand, inventory is extremely limited.

👉 Buy now at bonnellbike.com and get fast, insured delivery to your door.

Don’t wait — secure your Altis Sigma MX before the next shipment sells out.

Color Options

Black Limited, Red Limited

29 reviews for Altis Sigma MX

  1. Jonathan Reeves –

    I ordered the Altis Sigma MX from Bonnell Bike and the entire experience was flawless. Shipping from the USA warehouse to Texas took only 4 days. The bike arrived fully assembled and perfectly tuned. Customer support answered all my pre-purchase questions within hours. This is my new go-to shop for e-bikes.

  2. Samantha Miller –

    Absolutely love my new Surron Light Bee X! The team at Bonnell Bike was incredibly helpful in helping me choose between the Surron and the Altis Delta. They gave honest advice instead of just pushing the more expensive bike. Shipping was fast and the bike arrived in perfect condition. Highly recommend.

  3. Marcus Thompson –

    This is my third bike from Bonnell Bike and they never disappoint. I’ve purchased a Surron

  4. Priya Sharma –

    Ordered the Altis Delta eBike to Dubai. I was worried about international shipping but Bonnell Bike made it seamless. They handled all the customs paperwork and the bike arrived in about 10 days. The Delta is an absolute beast on the dunes. Thank you Bonnell Bike team.

  5. Ethan Walker –

    Great experience overall. Bought the 79Bikes Falcon and it arrived well-packaged from the China warehouse. Took about 12 days to Australia which was reasonable. Only minor complaint is that I wish the tracking updates were more frequent during transit. Bike itself is incredible.

  6. Olivia Chen –

    I was nervous about buying an e-bike online without seeing it first

  7. Liam O’Connor –

    Best customer service I have ever experienced from an online retailer. I had a small issue with my charger and they sent a replacement from their Europe warehouse within 48 hours. No hassle

  8. Isabella Rossi –

    Comprato la Altis Delta e la spedizione dall’Europa è stata rapidissima. La bici è fantastica

  9. Daniel Kim –

    The Altis Sigma MX is an absolute monster. I’ve owned gas dirt bikes for 20 years and this thing rivals my 250cc. Bonnell Bike shipped it from their USA warehouse and it arrived in 3 days. The race display with lap timer is a game changer. Worth every penny.

  10. Sophia Martinez –

    I bought my son a Surron Light Bee X for his birthday and he has not stopped riding it since. Bonnell Bike made the whole process easy

  11. Noah Wilson –

    Ordered an Altis Sigma from the Canada warehouse. Delivery to Toronto took 5 days which was great. The bike is phenomenal. I’m giving 4 stars instead of 5 only because the assembly instructions could be clearer for first-time e-bike owners. Once assembled

  12. Ava Johnson –

    This is my first e-bike and I did months of research before choosing Bonnell Bike. The team answered every single question I had with patience and expertise. My Altis Delta arrived quickly and in perfect condition. I could not be happier with my purchase.

  13. Lucas Silva –

    Pedido para o Brasil chegou em 15 dias úteis. A embalagem era perfeita e a Altis Sigma chegou sem nenhum arranhão. A Bonnell Bike é a melhor loja online para quem procura e-bikes de alta performance. Recomendo a todos.

  14. Emma Brown –

    I had an issue with my order and the Bonnell Bike support team resolved it within hours. They were professional

  15. Mason Davis –

    The Altis Sigma MX is hands down the best electric dirt bike I have ever ridden. The torque is insane and the suspension soaks up everything I throw at it. Bonnell Bike shipped it fast from their US warehouse and even followed up to make sure everything was perfect. 10/10.

  16. Charlotte Garcia –

    I bought the 79Bikes Falcon for my husband and he absolutely loves it. Bonnell Bike offered the best price I could find online and the shipping was incredibly fast. The bike arrived fully assembled and ready to ride. Excellent service from start to finish.

  17. William Taylor –

    Third purchase from Bonnell Bike and they remain the best in the business. Ordered spare batteries

  18. Amelia Anderson –

    From the moment I placed my order to the day my Altis Delta arrived

  19. James Martin –

    Great bike

  20. Harper Thompson –

    The Altis Sigma is a game changer. I use it for both trail riding and commuting to work. The range is incredible and the build quality is top-tier. Bonnell Bike’s customer service team was amazing in helping me choose the right model for my needs. Five stars all around.

  21. Benjamin Lee –

    I cannot say enough good things about Bonnell Bike. I purchased the Altis Sigma MX and it exceeded every expectation. The power delivery is smooth but brutal when you need it. Shipping was lightning fast and the bike arrived in mint condition. Best purchase I have made in years.

  22. Evelyn White –

    As a first-time e-bike buyer

  23. Henry Clark –

    Ordered a Surron Light Bee X and a spare battery from Bonnell Bike. Both items shipped together from the China warehouse and arrived in about 12 days to New Zealand. The packaging was excellent and everything worked perfectly out of the box. Highly recommend this shop.

  24. Victoria Lewis –

    The Altis Delta is the perfect balance of power and weight. I was torn between the Delta and Sigma

  25. Sebastian Muller –

    Perfekter Service und schnelle Lieferung aus dem EU-Lager nach Deutschland. Die Altis Sigma MX ist ein Biest auf dem Trail. Alles war sehr gut verpackt und kam unbeschädigt an. Bonnell Bike ist definitiv der beste Online-Shop für E-Bikes.

  26. Grace Robinson –

    I bought the 79Bikes Falcon for my son and he is obsessed. The bike is incredibly well-built and the battery life is impressive. Bonnell Bike shipped it quickly and their support team followed up to ensure we were happy. Fantastic experience from start to finish.

  27. Alexander Young –

    I have purchased from several e-bike retailers and Bonnell Bike is by far the best. Their prices are competitive

  28. Chloe King –

    What an amazing experience! I ordered the Altis Delta on a Monday and it arrived at my door in California on Thursday. The bike was beautifully packaged and in perfect condition. I have already put 200 miles on it and could not be happier. Thank you Bonnell Bike.

  29. Jackson Wright –

    The Altis Sigma MX is the real deal. I race motocross and this electric bike hangs with gas bikes on the track. Bonnell Bike shipped it fast and their support team helped me with a custom suspension setup. If you are serious about e-bikes

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