Bitubo arrière XXZ31 Shock absorberRef : BITU00129A / 1115143

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 Ref: K0107XXZ31

Derived from the competition lineage XXF, the BITUBO XXZ31 brings a performance-oriented rear suspension to the roadster, enhancing sensations and handling. Designed to provide precise riding, it combines lightweight materials and optimized architecture: a Ø14 mm shaft and Ø30 mm piston reduce moving masses for a quicker response from the shock absorber.

The XXZ31 offers a wide range of adjustments to fine-tune the behavior of the rear end according to your style and route:

• Low-speed compression: 24 clicks
• High-speed compression: 20 clicks
• Extension: 24 clicks
• High-speed extension: 20 clicks
• Hydraulic preload: 12 mm = 24 clicks (XXZ31V2 version: 10 mm = 20 clicks)
• Spacing: 8 mm
• Height and preload adjustment to adapt geometry and feel

On the road as well as in tight trajectories, this shock absorber allows for adjustment of rebound and double compression to regain feel at the handlebars, stabilize the rear, and optimize road holding according to demands. Ideal for sport roadsters (e.g., Kawasaki ZX‑10 R / RR), the XXZ31 is aimed at riders who want to refine their chassis without compromising reliability.