COBRA 20″ Twin 40V Max+ Cordless Rear Roller Lawnmower RM51SP80VX

20" Twin 40v Max Plus Li-ion Lawnmower with Rear Roller

Create a flawless striped lawn with the Cobra RM51SP80VX — a high-performance 20" (51cm) self-propelled rear roller mower, designed for those who want the perfect finish with the convenience of cordless power. Powered by Cobra’s advanced twin 40V MAX+ lithium-ion battery system, this mower delivers the robust performance of petrol without the noise, emissions, or ongoing maintenance.

The full-width rear roller not only creates a classic striped effect but also provides added stability, allowing you to mow right up to edges with precision and confidence. With a 6-stage cutting height adjustment ranging from 17mm for a close, fine finish to 75mm for tackling longer, tougher grass, the RM51SP80VX gives you full control over your lawn’s appearance throughout the seasons. Height adjustment is quick and simple via a single lever, conveniently positioned next to the rear roller for ease of use.

A durable steel deck offers long-lasting strength and reliability, while the wide 51cm cutting path ensures faster coverage of larger areas, reducing mowing time. The generous 70-litre grass bag means fewer interruptions to empty clippings, and its high-performance direct collection system ensures efficient pickup, leaving your lawn clean and tidy after every pass.

Designed for ease and comfort, the self-propelled drive system makes mowing virtually effortless — especially on uneven ground — and the ergonomically positioned controls give you intuitive command over the mower's pace and direction. Despite its size, the RM51SP80VX remains well-balanced and manoeuvrable, making it suitable for larger domestic gardens that demand a professional finish.

Whether you're looking for cordless convenience, powerful performance, or a beautifully striped lawn, the Cobra RM51SP80VX delivers all that and more — with the trusted engineering and innovation Cobra is known for. (Not compatible with standard Cobra 40v batteries).