Reaction Hybrid Performance 600 (2026)

The Cube Reaction Hybrid Performance 600 Mountain bike is your new way to ride! The versatile and rugged Reaction Hybrid Performance is built around Bosch's quiet, powerful Performance motor with 75 Nm torque. It's Bosch Smart System-equipped and fitted with a 600Wh battery for miles of pedal assistance. There's a clever flat mount for an optional kickstand and a mounting point for a multi-tool under the top tube. The Internal Cable Routing plus an innovative speed sensor setup flatter the frame's clean lines, and we built in our X-Connect system to make it easy to add a compatible ACID front light just by plugging it in. And, with Size Split, it's simple to find the perfect fit for you.

Highlights
Take the road (or track, or trail) less travelled. The Reaction Hybrid Performance uses Bosch's Performance motor and a 600Wh battery to help take you to new places. Elegant CUBE design and clever Size Split sizing mean you're bound to find the perfect fit... the one with your name on it. Where will it take you?

Discover your adventurous side, and see where it leads you. The Reaction Hybrid Performance takes the smooth power assistance – up to 75 Nm – of Bosch's Performance motor and adds easy-to-use Shimano Cues 9-speed gears and a 600Wh battery. Powerful Shimano hydraulic disc brakes and grippy Schwalbe Smart Sam 2.6in tyres give you reliable stopping power in any weather. And a suspension fork with 120mm travel (100mm for smaller frame sizes), comfortable saddle and lock-on grips ensure you're comfortable for the long haul. Follow your curiosity...

Fully Integrated Battery

The Fully Integrated Battery system tucks the power of Bosch's battery out of sight, safely inside the confines of your bike's downtube. Hidden beneath a splash and dust-proof cover and secured with a lock to prevent theft, it allows us to design beautiful e-bike frames that are as brilliantly functional as they are good to look at.

Advanced Internal Cable Routing

Gear and brake cables need a way to get from handlebar controls to frame – but what if there was no need for holes near the head tube? We came up with a design that takes cables into the frame via the headset, maintaining full internal cable routing but making it even neater and less obtrusive.

Modular Battery System

In many ways the battery is the heart of an e-bike. That's why, with our Modular Battery System, we've made a setup that's easy to use. You can charge the battery on or off the bike, and we've made room for even high capacity batteries. You'll wonder how you ever managed without it.

Size Split

The right bike should fit you perfectly. That's why we created Size Split. For shorter riders, the smaller 27.5in wheel standard allows us to build frames that fit well while remaining agile and sure-footed. And, for taller riders, we built a range of sizes around the fast-rolling 29er wheel standard. Whichever one you choose, you can be sure of a fit that makes your bike feel as though it was built just for you.

Agile Ride Geometry

For off-road riding you need a bike that responds quickly, but also feels stable and secure. That's where Agile Ride Geometry comes in. Offering an ideal blend of on-demand steering precision, climbing agility and descending stability, it's perfect for every rider who values their time on the trail. If you're a mountain biker, you'll instantly feel at home...

Aluminium Superlite

CUBE's Aluminium Superlite starts with heat-treated 6061 aluminium, which has the qualities – high fatigue resistance, good stiffness, low weight and excellent strength – that are important for a bicycle frame. Then we make it into double butted tubes, to reduce weight without sacrificing any of its strength. The result? Exceptionally light, strong and tough frames.

X-Connect

X-Connect is the simple way to attach a compatible ACID light to your CUBE bike. With a connector built into the headset and the wiring hidden in the frame, all that's left to do is attach the light, plug it in... and off you go. See and be seen, the easy way.