Big performance for little riders.
The Cube Acid 240 Hybrid Rookie SLX 400X Electric Kids Bike is a premium junior electric mountain bike that brings adult-level trail performance to young riders. Designed with the same advanced technology found in Cube’s top-tier e-MTBs, this kids’ electric bike is built for adventure, confidence, and fun on every ride.
Lightweight Bosch SX Motor: Powered by the efficient Bosch SX drive unit delivering up to 55Nm of torque, this e-bike provides smooth and natural pedal assistance up to 20km/h, giving young riders the extra boost they need on climbs and long rides.
Integrated 400Wh Battery: A fixed 400Wh Bosch PowerTube battery is seamlessly integrated into the frame, offering long-lasting range for all-day exploring. Fully compatible with the 250Wh PowerMore range extender for even greater distance.
Advanced Frame Design: Built with the same precision and durability as Cube’s adult bikes, featuring Advanced Internal Cable Routing, Boost rear axle, and a UDH (Universal Derailleur Hanger) for easy maintenance and top-tier performance.
Trail-Ready Suspension: Equipped with a responsive air suspension fork for smooth control and comfort over rough terrain.
Dropper Post Compatible: Ready for a dropper seatpost upgrade, allowing easier saddle height adjustment for changing trail conditions.
SIC 2.0 & Luggage Compatibility: Designed for practicality, with SIC 2.0 compatibility for fitting a rear carrier or accessories, ideal for daily rides or mini adventures.
Junior-Specific Geometry: The Cube Acid 240 Hybrid Rookie offers stable, confidence-inspiring handling for younger riders, perfectly scaled for smaller frames without sacrificing performance.
Wide 2.35” Tyres: Durable, high-traction tyres provide grip, comfort, and control across trails, gravel, or urban environments.
Kickstand Included: Convenient and sturdy, so there’s always a place to park.
For ambitious young mountain bikers, the Cube Acid 240 Hybrid Rookie SLX 400X is the ultimate electric kids’ bike, combining lightweight agility, advanced Bosch e-power, and rugged Cube reliability. It’s built to handle real trails, steep climbs, and fast descents with ease, empowering kids to ride further, faster, and with more confidence.
Ride Further. Ride Smarter. Ride Cube.
The Cube Acid 240 Hybrid Rookie SLX 400X redefines what’s possible for young riders, combining lightweight design, Bosch electric power, and trail-ready performance for the next generation of mountain bikers.