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Ristretto 512 SERIE
Ristretto 512 SERIE
September 03, 2025
Ristretto was born in the midst of the pandemic in 2019 in Denver, USA, but is headquartered in Austin.
The founders, Christopher Gerardino (CEO) and Dominic Da Silva (COO), later joined by Alessandro Zanchi (VP of Design), were influenced by the work of British climatologist Ed Hawkins, known for his climate change infographics.
They began the communication for their project with a thoughtful mission statement: "A Warming World."
Ristretto 303 FS
In 2021, their first model, the 303 FS Founders Edition, was launched as a limited edition. It was a multi-class electric bike featuring a 3500W mid-drive motor, a 52V battery, and up to 55 miles of range.
This model was manufactured in Detroit by Detroit Bikes.
Following this, Ristretto continued to develop its partnerships with the goal of releasing a new model by the end of 2024: the 512.
Photo credit: Ristretto
Ristretto 512
Ristretto 512
Photo credit: Ristretto
The Ristretto 512 is a smart e-bike capable of reaching 28 mph (45 km/h) in street-legal mode and up to 40 mph (64 km/h) in race mode, placing it in the speed bike category.
Is the 512's retro-yet-modern style inspired by sixties café racers or scramblers? A bit of both. It stands apart from many existing models, targeting design enthusiasts and motorcycle fans looking for an electric alternative. It compares more to "moto-style" bikes than to lightweight commuter bikes. Officially, the Ristretto 512 is a multi-class (Class 2-3) speed bike compliant with U.S. regulations.
Its power and design make it a true competitor to the Segway Xyber (Class 1 & 2).
512 colors currently available:
512 Arctic
512 Bronzo
512 Magnetic Silver
512 Mamba
512 Spitfire
512 Studio
512's Design :
512's Design :
The aluminum "diamond" frame design is the centerpiece of the Ristretto 512, updating the lines of its predecessor. The long, flat saddle, low-rise handlebars, and riding position are drawn directly from that retro style.
Ristretto combines craftsmanship with technologies like 3D design and CNC machining, all while keeping hands-on expertise at the heart of its process. A model's development begins with a prototype frame, which is then refined by hand over several iterations. Once the frame is finalized, the other components are created. For the 512 model, seven complete prototypes were built and extensively tested in several countries before being approved for production.
The Ristretto 512 is the result of this approach. It draws inspiration from the 303FS Founders Edition, modernizing its proportions. Its design features fluid surfaces, bold lines, and a low center of gravity that emphasizes its power. Designed with meticulous attention to detail, the 512 is positioned as a luxury, built-to-last e-bike, poised to become a benchmark for other e-bike manufacturers.
Photo credit: Ristretto
The main frame is indeed a one-piece unit, likely created using a gravity casting process. The separate piece we see is the rear swingarm, which pivots on the main frame to enable the dual shock absorbers.
This architecture is highly intelligent and typical of high-performance motorcycles. It combines the best of both worlds:
The absolute rigidity of the one-piece main triangle, which withstands the forces from the motor, the rider's weight, and steering stress without any flex.
The flexibility and comfort of an articulated rear suspension to absorb road imperfections and ensure traction at high speed.
The massive, flowing curves aren't just for aesthetics. For a speed bike, aerodynamics are paramount. These wide, continuous sections minimize sharp edges and drag. The frame's volume suggests a complete integration of essential speed bike components: the battery, motor, and cabling. The lack of visual breaks helps to "trick the eye," making these elements disappear into the frame's bulk—a major asset for both the performance and aesthetics of a fast vehicle.
For a speed bike, a rigid frame is essential for efficient power transfer from the motor and rider to the wheel, as well as for steering precision at high speed. The massive downtube and bottom bracket area appear designed to withstand intense torsional forces.
The head tube angle, which seems rather slack, combined with a potentially long wheelbase, promotes excellent directional stability at high speed. On speed bikes that can reach significant velocities, rider confidence is crucial.
The focus on a very low center of gravity is fundamental for handling, cornering stability, and the sense of safety at high speed.
This Ristretto 512 is a masterful demonstration of using a one-piece main frame to achieve maximum rigidity and integration, cleverly paired with a swingarm for suspension performance. The design, with its rounded square profiles and edges, gives it a unique, aggressive, and modern visual signature that unmistakably communicates its nature as a high-performance speed bike. It's a stunning piece of work.
Photo credit: Ristretto
512 A20 & A24 's Features :
512 A20 & A24 's Features :
Its diamond frame is crafted from 6061 T6 aluminum and it's equipped with a dual suspension fork at the front as well as rear suspension. The Ristretto 512 is available in two versions, A20 and A24 (corresponding to the wheel sizes), with a weight varying from 88 lbs to 89 lbs - 40kg (110 to 111 lbs - 50kg with the battery) and a recommended maximum rider weight of 325 lbs - 148kg.
6061 aluminum is available in two tempers: 6061 T4 and 6061 T6.
The difference between them is that T4 aluminum is naturally aged, while T6 aluminum is artificially aged by heating it between 175°C and 260°C (347°F and 500°F) for 12 to 24 hours.
This aging process gives the two tempers distinct properties, particularly in terms of fatigue resistance.
CYC X1 Pro Gen 4 Motor
The CYC X1 Pro Gen 4 is a 750W motor capable of reaching a peak power of 4500W. The 512's low center-of-gravity design logically required a motor installed in the bottom bracket.
Due to its high power, its design had to address numerous constraints such as friction, temperature, and maintenance. To achieve this, it incorporates carbon fiber elements to optimize its extreme performance. The motor and controller can withstand temperatures as low as -20°C (-68°F) and as high as 150°C (-302°F) across all electrical and mechanical components. The software protection can handle a peak of 100°C (212°F). CYC states that its motor is compatible with batteries from 36V to 72V.
Photo credit: Ristretto
It operates with a CYC GEN 4 torque sensor that can reach 250 Nm. This motor is suitable for all uses, from urban commuting and off-roading to long-distance rides. The motor is street-legal, with a "Race" mode that peaks at 4500W. The riding modes include Class 1, 2, 3, and Race.
Two operating modes can be switched via the app or the LCD display:
Street Legal Mode - 750W: Limited to a maximum speed of 28 mph (approx. 45 km/h).
Race Mode - 4500W: Allows for a top speed of 40 mph (approx. 64 km/h).
Photo credit: CYC MOTOR
Drivetrain
The Ristretto 512 uses a single-speed drivetrain specifically designed for durability against the motor's power, incorporating a custom chain guide and tensioner.
However, the frame is compatible with standard 177x12mm fat bike specifications, allowing the single-speed drivetrain to be replaced with a standard derailleur and cassette if desired.
The drivetrain has an estimated lifespan of 5,000 miles (approx. 8,000 km) and requires the same chain maintenance as other electric bikes.
Catalina Lithium Battery
The battery has been specifically adapted to the design of the Ristretto 512.
The battery casing is made of aluminum to resist impacts and ensure optimal heat dissipation. It is equipped with a dual safety BMS, a fuse module to protect against overcharging, over-discharging, and short circuits, and an anti-theft Apple AirTag slot. It comes with a Ristretto master key specially designed for the frame.
The battery is built with 84 premium Samsung 50E 21700 cells, with a lifespan of approximately 5 years or over 1000 cycles.
It is available in two versions:
52V and 30Ah with a capacity of 1550Wh, with an approximate 6-hour recharge time.
72V and 20Ah with a capacity of 1440Wh, with an 8-hour recharge time.
Although substantial, weighing at least 11 lbs (5kg), it is removable and serves as a power bank to charge laptops and smartphones thanks to its two USB-C ports.
For range, one can expect up to 100 miles (160km) in pedal-assist mode and over 45 miles of range (72km) in throttle-only mode (50 miles - 80 km at a speed of 40 mph - 64 km/h).
An AirTag slot is integrated for anti-theft tracking via Apple's "Find My" app, using Ultra Wideband technology for precise location. An additional hidden slot is also present on the bike.
...the pretty little key with the Ristretto logo...
...in a pretty box made of carbon fibers.
Suspension and Ride Comfort
The Ristretto 512 is equipped with two suspension systems, front and rear:
Front: A DNM USD-8FAT inverted fork system with 160 mm of travel. The forks feature AL 7075 aluminum alloy tubes, rubber seals, and adjustments for rebound and compression.
Rear: A dual suspension with DNM MK-AR shocks. These are nitrogen-charged oil shocks offering 40 mm of travel and feature spring preload and rebound adjustments.
The headlight consists of two 3000-lumen LED bulbs.
The taillight features 10 LED bars that also function as turn signals.
Photo credit: Ristretto
The saddle, while not adjustable, is ergonomically designed with a water-resistant outer layer. The seat height is 31.75 inches (80.6 cm) for the A20 model and 33.75 inches (85.7 cm) for the A24 model.
Tektro four-piston hydraulic disc brakes, with a 203mm front rotor and a 180mm rear rotor.
Milehigh's puncture-resistant tires: 20" x 4" for the A20 model and 24" x 4" for the A24 model.
512 A24 's Onboard technologies
512 A24 's Onboard technologies
The Ristretto 512's onboard technology consists of a smart display, the Master Controller, a connected controller, and the app, all synchronized in real-time.
For added security, a slot has been provided in the battery pack to integrate an AirTag or any other tracker (slot compatible with Tile, Android app Life360 trackers).
Photo credit: Ristretto
The 3.5" TFT color LCD smart display (IP65) was designed by CYC Motor and is the DS103 model. It connects to the app via the controller's Bluetooth.
This high-readability, backlit display provides complete control over the 512's functions. It features a clock function (which remains active even when the display is off).
The interface offers several customization options: switching between light or dark themed dashboards, setting a password for enhanced security, and adjusting temperature, speed units, and screen backlighting.
It provides direct access to Performance Modes: Walk Assist mode to facilitate low-speed maneuvering and the Ride Mode function, which allows for instant switching between STREET and RACE modes.
Finally, the display has a Micro USB port intended for the 512's maintenance.
The Master Controller features four buttons for activating and deactivating the turn signals, headlights, and horn. Each button is equipped with a white indicator light that illuminates when the function is active.
The CYC X12 controller, which includes the Bluetooth module, is equipped with 12 MOSFETs and can handle a peak battery current of 100A, delivering up to 180A of phase current.
Ristretto 512's App Features
Ristretto 512's App Features
Connected via Bluetooth to the 512's CYC X12 controller, the Ristretto 512 app was specially designed by CYC Motor for the controllers equipping the Ristretto series, making it backward compatible with the Ristretto 303FS.
In addition to the LCD screen, it can be used as a secondary dashboard or as a configuration interface.
The design is clean and lightweight, the User Interface is smooth, and visibility is optimal. The feature icons are aesthetically well-designed, and information is precise and displayed correctly.
Much like a user manual, the app's user experience demonstrates the brand's commitment to quality and professionalism. Since the design comes from CYC Motor, the information provided about the motor is very valuable for the user, offering direct access to comprehensive data: motor temperature, controller temperature, and cadence (RPM).
And of course, nearly everything is configurable (performance, sensitivity, power, torque, and peripherals):
Customization of Assist Levels: The 512 has a maximum of 3 pedal assist levels that can be customized via the display, and up to 5 levels can be configured via the app. Each level adds power and can be adjusted independently, just like the throttle power level.
Speed and Power Classes: The app allows configuring the 512 according to Classes 1, 2, and 3, adapting the speed and power to current regulations.
Throttle Activation: The user can choose whether the motor activates by pedaling or by using the handlebar throttle.
Real-time Dashboard: Track speed, distance traveled, battery life, and other metrics.
Firmware Updates: Allows for keeping the controller up-to-date.
Integrated Navigation System: This software feature (which does not rely on a hardware GPS unit on the 512) allows for tracking rides and using navigation through the app.
512 A20 & A24 's Specifications
512 A20 & A24 's Specifications
Release date : 2024
Photo credit: Ristretto 512 User manual
Photo credit: Ristretto 512 User manual
Photo credit: Ristretto 512 User manual
Photo credit: Ristretto
My take on Ristretto 512
My take on Ristretto 512
Designing an e-bike is no simple task; it's a delicate undertaking, especially in recent years. A lot of entrepreneurs jump in with a single model and fail because they lack the maturity it takes to attract buyers. You don't need to go big right from the start, but it's crucial to stand out with smart Design, Harmonious components, and a Philosophy that truly defines a new brand.
Ristretto's maturity is reflected in two models over four years. In the time between the release of those two bikes, it was passion, perseverance, and a willingness to take risks that truly set the pace for the team's work.
With its second model, the 512, Ristretto has designed a true smart e-bike! Every component has been seamlessly blended. It's a real art! And to achieve that kind of alchemy, you have to combine talent. This is how you discover the potential and quality of the powertrain engineered by CYC Motor—an excellent choice, offering the ideal motor for the 512 with its X1 Pro GEN 4! 250Nm! Why even look at DJI Avinox, Brose, Bosch, or Yamaha? CYC Motor delivers just as well, all while adapting and advancing their motor designs. The quality is undeniable!
The 512's design is its greatest strength; I was completely captivated. I found myself admiring a photo of the frame, zooming in, studying the details—I even talked to my AI about it. It's a gorgeous frame! The design team, Da Silva and Zanchi, achieved a masterpiece of its kind. And in the spirit of full transparency, they don't forget the partners who collaborated on its creation. That transparency is the heart of Ristretto. For the 512, Ristretto doesn't hesitate to share the entire design process. That's rare, and in my opinion, it's the best communication strategy out there. They show and demonstrate everything from A to Z, and it's on Ristretto's YouTube channel that you truly understand the 512 is a high-end smart e-bike. The videos are detailed, well-shot, and they're completely transparent about its design!
Unfortunately for me, neither the Segway Xyber nor the Ristretto 512 is available for sale in the European market. If I had the chance to live in the US tomorrow (a country I visited when I was younger), and I had to choose between the Segway Xyber and the Ristretto 512, I'd be totally torn. You have two opposing designs: the Xyber, a beast loaded with onboard tech but restricted to Class 1 & 2, and the Ristretto 512, which is street-legal in all 3 classes, adaptable to any terrain, and offers extremely reliable, high-quality tech...
I've always dreamed of going to Burning Man (and the Malcolm in the Middle episode at the festival only cemented that dream...), and honestly, I'd love to roll in on the Ristretto 512!
Mini-J
My thanks to Ristretto and CYC Motor for their courtesy in allowing me to use their photos.
For more information, visit the official Ristretto website.
Ristretto 512 Glossary
Ristretto 512 Glossary
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