Derived from the multi-award-winning XXF, the Mono XXZ, until now reserved exclusively for our official teams, is now at the cutting edge of technology, with a completely new design and a host of technical innovations, including 4 settings: compression and extension at low and high speeds, with new configurations designed to give the rider the best possible feeling. Inside, it has been updated with technical solutions that optimise the fluidity of moving parts, improve the damping coefficient and increase stability at high temperatures, not forgetting the use of lightweight materials to reduce overall weight.The Ø14mm piston blade increases fluidity and the Ø30mm piston reduces the mass of fluid in motion for a faster response to stresses. Particular attention has been paid to increasing the sensitivity and precision of adjustments. XXZ is designed to reduce inertia and provide immediate control of suspension oscillations. The aim is to provide the rider with greater driving precision and grip than ever before, as well as uniform tyre wear thanks to instant control of the forces at play. This gives the rider maximum support when cornering, even at extreme angles of inclination or during rapid changes of direction, maximum confidence in opening the throttle on all types of track, and perfect stability of the rear end even during the most violent accelerations.

The BITUBO XXZ31 embodies the philosophy of the XXZ range by offering a mono shock absorber designed for demanding riders. Engineered to provide fine adjustment of the rear end, it combines a lightweight architecture with solutions aimed at sensitivity and precision in handling. Its Ø30 mm piston and Ø14 mm shaft reduce moving masses for a responsive reaction to road or track demands.

Suitable for roadsters and compact sport machines, the XXZ31 features four adjustment axes that allow you to fine-tune handling according to your style: low and high-speed compression and rebound, hydraulic preload, and ride height. Installation enhances rear behavior control for better feedback during cornering and directional changes.

• Low-speed compression: 24 clicks
• High-speed compression: 20 clicks
• Rebound: 24 clicks
• Hydraulic spring preload: 12 mm = 24 clicks (XXZ31V2 version: adjustable compact preload 10 mm = 20 clicks)
• Spacing: 8 mm
• High-speed rebound: 20 clicks

• Piston diameter: 30 mm
• Rod diameter: 14 mm
• Adjustments: rebound, double compression, hydraulic preload, height adjustment

Manufacturer reference: BW051XXZ31 — compatible with many sport bikes, including the BMW S 1000 RR (2020–2022).