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.

BITUBO XXZ31 Rear Shock Absorber (manufacturer reference BW039XXZ31): a mono-shock derived from the BITUBO competition range, designed for roadsters seeking a more neutral rear end and precise handling when entering and exiting corners.

The XXZ31 incorporates technical solutions from official models: 14 mm piston rod and 30 mm piston, optimized hydraulic masses, and lightweight materials for a more responsive reaction. Its architecture includes four adjustment pathways to fine-tune damping and system sensitivity, ensuring a stable stance, better control of oscillations, and clear feedback to the rider.

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

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

Designed for demanding road use, the XXZ31 allows for precise damping adjustments to enhance rear grip, stability during acceleration, and confidence when opening the throttle. Compatible with several variants of the BMW S 1000 RR (2010-2011) depending on installation.