E Bikes Reviewed

Wilier Filante SLR Hybrid: A High-Performance Electric Road Bike

Wilier’s Filante SLR in its standard guise has gained popularity among professional cyclists, including the pro tour team Astana-Qazaqstan and renowned sprinter Mark Cavendish.

Now, Wilier has taken it a step further with the introduction of the Filante SLR Hybrid, an electric road bike that combines the performance of its predecessor with the added advantage of an electric motor.

Wilier Filante SLR Hybrid Frame Details

The first thing that stands out about the Filante Hybrid is its seamless integration of electric components into the sleek design of the Filante SLR. At first glance, it’s almost impossible to differentiate between the two models. However, upon closer inspection, you’ll notice the subtle differences, such as the bottom bracket shape, which houses the Hybrid’s charge port, and the iWoc controller integrated into the one-piece bar and stem.

Wilier has opted to use Mahle’s rear-hub drive X20 electric bike motor for the Filante Hybrid. This compact motor weighs just 1,339g and offers a 250W output with 55Nm of torque. It is controlled by the integrated iWoc controller or wirelessly connected head unit. The X20 motor works seamlessly with standard thru-axles and offers quick-release contacts for easy installation.

To keep the weight down, Wilier has chosen a smaller-capacity 236Wh internal battery for the Filante Hybrid, in comparison to the Orbea Gain M10i. Despite the smaller battery, the Filante Hybrid still delivers impressive performance while maintaining a lightweight frame. The frame itself weighs a claimed 1,100g and features reinforced areas for the battery, oversized bottom bracket, and chainstays. The fork is also impressively light at just 360g.

Wilier Filante SLR Hybrid Geometry and Build

The Filante Hybrid shares the same aero profiles as its non-electric counterpart, the Filante SLR. However, Wilier has made slight adjustments to the geometry and build of the Hybrid to enhance its overall ride quality. The reach and stack measurements have been adjusted to provide a more comfortable and relaxed riding position, making it suitable for long-distance rides and endurance cycling. The wheelbase has also been increased, resulting in improved stability and control.

In terms of its build, the Filante Hybrid is available in various configurations. The flagship model comes equipped with a full Shimano Dura-Ace Di2 R9200 groupset, Wilier carbon wheels, and carbon finishing kit. However, the range starts at a more affordable price point with an Ultegra Di2 model featuring alloy wheels. Regardless of the configuration, the Filante Hybrid offers top-of-the-line performance and exceptional quality.

Wilier Filante SLR Hybrid Ride Impressions

When it comes to performance, the Filante Hybrid truly shines. Thanks to its lightweight frame and powerful motor, it delivers a high-performance riding experience that rivals traditional non-electric road bikes. On flat or rolling terrain, the Filante Hybrid feels incredibly responsive and agile. The low weight of the bike allows riders to easily maintain speeds above the EU-regulated limit of 15.5mph/25kph without feeling any drag.

Where the Filante Hybrid truly excels is on steep climbs. While it is perfectly capable of tackling hills without the assistance of the motor, engaging the X20 motor provides a significant boost in power. The motor delivers a natural-feeling increase in speed, allowing riders to conquer challenging ascents with ease. Wilier has left the X20 system as standard, providing out-of-the-box motor mapping that enhances the climbing capabilities of the bike.

The Filante Hybrid offers three levels of assistance: Level 1 provides 25% power, Level 2 offers 50% power, and Level 3 delivers up to 200% power, depending on the rider’s input. The system’s power meter measures the rider’s input and amplifies it accordingly. This allows for a more seamless and intuitive riding experience, especially during steep out-of-the-saddle climbs. The Mahle Smartbike app provides riders with extensive control over the motor settings, allowing for customization based on individual riding styles and preferences.

Wilier Filante SLR Hybrid Range and Price

One of the standout features of the Filante Hybrid is its impressive range. Despite its smaller-capacity battery, the Filante Hybrid offers exceptional mileage. In real-world testing, the bike has been proven to cover over 100 miles/160km on a single charge, with some riders achieving even greater distances. The lightweight nature of the bike plays a significant role in its range, as the reduced weight allows for more efficient energy consumption.

However, it’s important to consider the price tag associated with the Filante Hybrid. With a starting price of £8,940 for the Ultegra Di2 model with alloy wheels, the Filante Hybrid is undoubtedly a high-end and expensive option. The flagship model, equipped with a full Dura-Ace Di2 groupset, carbon wheels, and finishing kit, comes with a price tag of £11,800. While the Filante Hybrid offers exceptional performance and features, its high price may be a deterrent for some riders.

A Masterpiece of Performance and Design

The Wilier Filante SLR Hybrid is a masterpiece of engineering, seamlessly integrating electric components into a high-performance road bike. With its lightweight frame, powerful motor, and exceptional handling, the Filante Hybrid offers a riding experience that rivals traditional non-electric road bikes. The bike’s range and climbing capabilities are impressive, thanks to Wilier’s thoughtful design and the performance of the Mahle X20 motor.

However, the Filante Hybrid’s high price tag may be a limiting factor for many riders. While it undoubtedly offers exceptional value for those willing to invest in top-of-the-line performance, it may not be accessible to a wider audience. Nevertheless, for those who prioritize performance, comfort, and cutting-edge technology, the Wilier Filante SLR Hybrid is an excellent choice. It represents the pinnacle of electric road bike innovation and sets a new standard for what is possible in this rapidly evolving field.

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Richard Alvin

Managing Editor of EV Powered who has a passion for electric converted classic cars - currently converting Lottie the Landy a 1965 Series II ex RAF Land Rover to electric power and the person responsible for two wheel reviews at EV Powered.