Acids can dissolve certain materials easily. Why call a bike Acid? We've got our reasons. Simply put, our Acid hardtail dissolves tricky trail sections quicker than you'd think. With its high quality frame (27.5 or 19 inch), neutral handling and performance-orientated features, it leaves nothing to be desired.

Frame building technologies are evolving constantly. The Acid's 6061 aluminium frame with mechanically formed top and down tubes, interior cable routing and tidy details like the rear disc mount put it right at the cutting edge. Reworked Agile Ride Geometry gives the Acid the kind of balanced-but-lively handling that means you can go full throttle.The frame is disc-specific and features our very durable, multi-layer wet paint finish.

Manitou's functionally superb M30 air suspension fork with 100mm travel and bar-mounted lockout lends the Acid a touch of exclusivity. It's also particularly light thanks to its aluminium steerer - a feature rarely seen at this price. The 3x10 Shimano Deore transmission with compact crank (40x30x22) and direct mount XT derailleur delivers crisp, accurate shifts even under load. Hydraulic Shimano BR-M615 disc brakes with Servo-Wave Technology bring the Acid to a halt reliably, while the 180mm front rotor is perfect for longer descents. And the CUBE cockpit incorporates Shimano I-Spec, ensuring optimal integration of gear and brake components.

With our Advanced Mechanical Forming technology we can mechanically transform different frame tubes and thus optimize them without material-wearing welding work for the respective requirements. Along the obtained organic look, the production method is primarily motivated by functional reasons. Multiple converted tubes enable us to manufacture lighter and also stiffer aluminum frames.

We ran innumerable tests to develop the Agile Ride Geometry in our series of big wheel bikes. We also added the 27.5in wheel size to the very well received portfolio. Three important details lead to the very agile character. Increased fork offsets let us achieve the same trail as our 26in bikes without having to steepen the head angle, thus maintaining generous toe clearance to the front wheel. Secondly we shortened the chain stays without compromising the seat angle. We invented a patented construction to mount the front derailleur to give us more tyre clearance while keeping a conventional seat angle, leading to a perfect riding position for every rider size. Last but not least we kept the BB height the same as on our 26in bikes. These measures lead to a natural riding position. Every mountain biker will feel immediately at home on a CUBE 29er or 27.5.

6061 aluminium alloy requires a heat treatment for the finished product. It is a stiff, very corrosion resistant, fatigue resistant,high-elongation material suitable for light tubesets with high stiffness.

The Easy Mount Kick Stand is a new system developed and designed by CUBE. The base of the stand is mounted from below to a fitting plate integrated to the frame and fixed with a through bolt. This kick stand is extremely stiff and solid through the enlarged contact areas between base and frame which gives a stable stand even with loaded panniers.

To protect our high-end aluminium frames from damage, they are built with the CUBE Frame Save System replaceable derailleur hanger. The mounting thread is in the hanger and not in the frame as usual. In case of a crash, this hanger can be easily and quickly replaced by a new one.

Internally routed cables offer many advantages. Cables are protected from dirt for longer life, weight is saved thanks to the absence of external housing and the bike has a clean, sleek appearance.

On polished, brushed aluminium and all HPC frames, the logos and graphics are applied in multi-layer wet paint. We use this surface treatment technology mainly to save weight.