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Riders Weight in Gear
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The Bitubo XXF shocks use a steel spring with a
58mm diameter that is set for your weight upon
ordering, but additional Springs are available in a
wide variety of different stiffnesses, and if you are
looking for the ultimate in lightweight performance,
Contact Us about their Titanium Springs.
XXF 31 and XXF 11 Rear Racing Shocks

The Bitubo XXF series is a complete redesign of the world famous FXF
shock, every feature has been improved, and the faults have been

The Bitubo XXF Shocks also come sprung for your specific weight!

We use the Bitubo XXF31 Rear Shock on our
Project Bike and LOVE IT!

Click here to view the press release

Available for Almost EVERY Recent Naked, SuperSport, and SuperBike

Don't Hesitate to
Contact Us with any Questions!
RACE READY EVOLUTION SHOCK: This product offers the most advanced technology and equipment
performance, after years of experience and collaboration by the best teams in WSBK, CIV, CEV, BSB.

INNOVATION: the new Ø14mm rod improves the sliding; the piston uses a new sealing band with low friction
coefficient. Such improvements aim to improve inertial force reduction, and therefore an immediate feedback
during the suspension oscillations. Damping adjustments with double speed in compression and rebound.
The new XXZ39 is supplied with the latest XD valves with multiple winning set-ups.

TARGET the feedback of the shock is immediate, thanks to the titanium spring decreasing the moving masses as
well as the risk of vibration and resonance. This ensures the best grip.

Easy Changer: this is a quick change system: fast replacement of the valves, now possible in just a few minutes.
This system makes the shock absorber set-up faster for racing technicians.

Titanium RCS® spring: Leading American company in this field, is featured in the shock absorber, which together
with the aluminium body decreases a lot of the components weight.

REGULATING VALVE KITS: XXZ shock absorbers can be quickly customized thanks to the replacement of XD
compression and rebound valve. Bitubo supplies complete valve kits in one or double speed; they can be even
modified for team specifications. The kits are supplied with their specific charts.
Package Special!!!

Purchase the Bitubo Damper, Shock, and Fork Cartridge kit for the Aprilia RSV4
and receive a
10% discount

(discount applied via partial refund immediately after checkout!)
XXZ 39
EVO Racing Shock

Retail Price - $2790.00