The Merida Reacto SP Rear Light Black is a purpose-built aerodynamic rear bicycle light designed specifically for compatible MERIDA REACTO seatposts, combining enhanced rider visibility with the clean, integrated appearance of a performance road bike. Developed for cyclists who want a dedicated lighting solution without adding a bulky external accessory to the seatpost, the REACTO SP provides a sleek and streamlined fit that complements the aerodynamic design of the MERIDA REACTO platform. Its low-profile construction makes it an ideal choice for road cyclists, performance riders, commuters and enthusiasts who value both visibility and a clean bicycle setup.
Designed for seamless integration with the MERIDA REACTO seatpost, the Reacto SP provides a more refined alternative to traditional universal rear lights. Once fitted to a compatible seatpost, the light follows the lines of the bicycle and maintains the streamlined appearance of the REACTO frame and seatpost combination. This integrated approach is particularly valuable for riders who want to add a rear safety light while preserving the aerodynamic character and minimalist appearance of their road bike.
The easy-to-fit design makes installation straightforward on compatible REACTO seatposts. The light is specifically engineered for REACTO CF2 and CF4 frames from model year 2018 onwards, helping provide a dedicated fit rather than relying on a generic seatpost clamp. Riders should verify their frame and seatpost compatibility before installation to ensure the correct fit and operation.
The Merida Reacto SP is powered by a single disposable AAA battery, and the required battery is included with the product. This battery-powered design offers convenient operation without the need for regular USB charging. For cyclists who prefer a simple and easily replaceable power source, the AAA battery system provides a practical solution for everyday rides, training sessions, commuting and longer cycling trips where access to a charging point may not always be available.
With a runtime of up to 12 hours, the Reacto SP is designed to provide extended use between battery replacements. This makes it suitable for regular cycling routines as well as longer training sessions and touring activities. The actual runtime may vary depending on usage conditions and operating mode, but the design focuses on providing practical battery life for everyday cycling.
One of the most important advantages of the Reacto SP is its exceptionally low 37 g weight. For road cyclists who pay close attention to overall bicycle weight, this lightweight construction allows you to add a rear lighting solution without making a significant difference to the bike's overall weight. Its compact form also contributes to the clean and performance-oriented appearance of the bicycle.
The Black finish is designed to complement the styling of MERIDA REACTO bicycles and compatible seatposts. Instead of appearing like a separate bulky accessory, the light blends naturally into the rear section of the bicycle, helping maintain a professional and integrated aesthetic. This makes it particularly suitable for cyclists who want their safety equipment to match the sleek appearance of a modern aerodynamic road bike.
The Reacto SP is designed with a strong focus on combining safety and aerodynamics. A rear bicycle light can help make a cyclist more noticeable to other road users during low-light conditions, early-morning rides, evening training sessions and commuting. At the same time, the integrated seatpost design avoids the need for a large external mounting system, helping preserve the streamlined appearance of the REACTO.
For performance road cyclists, equipment integration can be just as important as individual component performance. The Merida Reacto SP provides a dedicated solution that works with the bicycle's existing aerodynamic design. Its seatpost-specific construction eliminates unnecessary straps, clamps or oversized mounting hardware, resulting in a cleaner cockpit and rear profile.
