Built with a sturdy titanium frame and an astonishing 33,600 Watts of power (yes, you read that right), the Slack Core 920R is truly made for the track. Unless you’re planning to race electric scooters, it may not be the most practical or safest option. However, it’s definitely fascinating to watch this beast in action.
Curious to learn more about this speed demon? Check out our Slack Core 920R review below.
Specs
- Max Speed: 145 km/hr
- Range: 43 miles
- Battery: Samsung 21700 40T – 20S9P – 72V 36Ah
- Braking: Hydraulic Magura MT7 disc front + rear brakes
- Rated Power: 2x 200A
- Tyres: PMT Slick Racing
- Max. Load: 242.5 lbs
- Water Resistance: –
- Dimensions: 52.6 x 46.5 x 21.5 inches
Pros
- Fastest electric scooter with a 91 mph top speed
- Impressive 33,600 Watts of peak power offer extreme acceleration
- Robust titanium and aluminium frame provides durability and strength
- 4-piston Magura brakes offer maximum stopping power
- Dual suspension system absorbs shocks effectively
- 11-inch PMT racing tyres that are designed for maximum grip
- Features an innovative cooling system to prevent overheating during racing
Cons
- Exclusively designed for track use, so it can’t be used on public roads
- Difficult to find as it’s produced in small batches
- Heavyweight
- Extremely expensive
Slack Core 920R Comparison
The EMOVE Roadster has a robust 3360 Wh battery and dual hub motors, with each one providing a peak power output of 15,500 W. On the other hand, the Core 920R features a 72 V, 2592 Wh battery and dual 200 amp controllers that offer an incredible 33,600 W peak power.
Another great option is the Dualtron X Limited. It‘s 70 mph top speed and dual 2000W motors make it one of our all time favourite scooters.
The e-scooter boasts dual batteries: a primary 84V 60Ah LG battery that provides an incredible range of 100 miles, along with a secondary 11V 20Ah Li-ion battery that powers the lights, including the headlights, taillights and turn signals. However, its weight can be a challenge, especially on hills; at 182 pounds, it’s understandable.
But for now, let’s dive into the specifics of the fastest electric scooter— the Core 920R!
Summary
Retailing for around €7,000 and produced in limited batches, you may find it difficult to get your hands on the 920R, which makes it feel more like a “boutique” scooter compared to other standard production models.
In terms of ride quality, the Core 920R is the best, thanks to its dual suspension system, which absorbs all shocks like a champ. Plus, the tyres, despite their minimal tread, offer impressive grip and ensure confidence and stability on the road.
As for the battery, the scooter features a 2,592 Wh battery which may seem small for its price, and it can drain quickly if you’re really pushing the motors. However, it’s important to remember that this scooter is designed for extreme speeds rather than long-range cruising.
Overall, for daredevils and speed lovers, there’s nothing quite like the Slack Core 920R and its phenomenal power.
Speed, Power, and Range
One feature that we were particularly impressed by is the scooter’s manageable throttle response. When you go full throttle from a standing start, you can hit the claimed top speed in just 60 seconds. However, this impressive speed makes it a machine that’s best suited for experienced riders who know how to handle the power.
Moreover, the Core 920R is equipped with a 72 V, 2592 Wh battery. This high-voltage system allows the scooter to maintain a steady current even as the battery gets lower, which is typical for racing scooters. We also love that it uses energy-dense 21700, 40T cells from Samsung as this ensures you get decent mileage per charge.
On a single charge, you can expect to travel around 30 km in Turbo mode, which is perfect for those fast-paced rides. If you switch to Eco mode, you’ll enjoy a max range of up to 70 km and get plenty of distance to explore and enjoy your ride.
Braking
Handling and Ride Quality
The scooter’s front suspension is designed with braking efficiency in mind rather than pure comfort and features a parallel sustained suspension setup. On the other hand, the rear suspension, measuring 165 mm, is excellent for shock absorption and makes sure your ride remains smooth, even when you’re cruising at high speeds.
Overall, the construction of the Core 920R results in a strong scooter body that’s also flexible enough to soak up vibrations and torsions. This combination leads to an extremely comfortable and stable ride, which is particularly important when riding at high speeds.
Tyres
Portability
Design and Build Quality
Moreover, the scooter’s cooling system is also one of a kind, and Numo has put a lot of thought into it. The front and rear bodies double as heat sinks, which means they pull heat away to keep the battery and controller cool, even as you’re pushing the scooter to its maximum limits. Plus, the front and rear controllers are strategically placed for extra thermal efficiency, and the shortened rear motor cable also cuts down on any extra heat buildup.
Lastly, the scooter’s build quality is unmatched. The handlebar, pole, and ladder frame are crafted from titanium, while the front fork and swing arm are forged aluminium. As for the handle stem and front/rear block, they’re made using liquid-forged aluminium which makes the scooter strong yet lightweight.
Load Capacity
Riding Modes
Known Issues
- Exclusively Designed for Track Use: One of the major drawbacks of the Slack Core 920R is that it’s designed solely for racing on tracks and isn’t approved for use on public roads. This limits its practicality for everyday riders who want a versatile scooter.
- Difficult to Find: The Slack Core 920R is produced in limited batches and finding it is quite challenging. So, you might have to face long waits or have to search extensively to secure one.
- Heavy Weight: Weighing in at 105.8 lbs, the Core 920R isn’t the most portable option available. Carrying it up stairs or on public transport can be very hard, especially for those who live in urban areas and need portable e-scooters.
- Extremely Expensive: The Slack Core 920R is more expensive than most other scooters in the market.

