X-Lab SP5+ eBike Review: A Mid-Drive, Light-Weight eBike Under $2k?

XDS has introduced a new global range of bicycles under its X-Lab brand, with the SP5+ standing out as a lightweight, mid-drive electric bike priced at just $1,899. Positioned as a fitness-focused eBike, the SP5+ weighs a mere 37.56lbs (17kg), significantly lighter than many competitors in its class, making it particularly appealing for commuters and riders seeking an affordable yet practical electric bike. The model features a mid-drive Branta X800 motor, delivering 250 watts of continuous power and 400 watts peak, paired with a modest 339Wh battery that balances weight and range. The SP5+ is designed with a strong emphasis on integration and versatility. Its aluminium frame is complemented by a carbon fork and aluminium wheels, while the cockpit integrates the display, headlight, and handlebars into a single unit. The bike also includes thoughtful features such as a Quad Lock phone mount, an integrated rear taillight with brake light functionality, and Apple Find My anti-theft technology, although the accompanying app is yet to be launched. The drivetrain utilises Shimano CUES 9-speed components, and the bike rolls on 700c x 40mm gravel tyres, making it suitable for a variety of riding conditions. Branta, XDS’s in-house component brand, supplies much of the bike’s hardware, including the motor, wheels, brakes, and drivetrain parts. The hydraulic disc brakes impressed with their strong stopping power and modulation right out of the box, using mineral oil-based fluid for easy maintenance. The SP5+ also offers a range of mounts for racks, bottles, and packs, enhancing its practicality for commuting or light touring, though some mounting points require creative use, such as the front fender mounts. Initial rides reveal the SP5+ as a competent and efficient eBike, particularly given its price point. While it does not match the power delivery or refinement of higher-end models from Bosch or Specialized, it performs well on inclines and delivers a quiet motor experience during normal riding. Some minor noise from the motor freehub was noted, but this is expected to improve in production models. The bike’s control system is straightforward, with basic power and assist level buttons, pending further functionality from the upcoming app. Overall, the X-Lab SP5+ presents an intriguing option for riders seeking a lightweight, affordable mid-drive eBike that does not compromise on essential features or build quality. Its competitive pricing and thoughtful design could make it a strong contender in the budget eBike market, particularly for those prioritising portability and everyday usability. With the full app launch and further testing, the SP5+ may well establish itself as a practical choice for commuters and fitness riders alike.