Twins Championship-winning suspension set-up for the Aprilia RS660
Italian suspension manufacturer Bitubo is celebrating race success - with Kaleb De Keyrel and the Robem Engineering team claiming the 2021 Twins Championship of MotoAmerica with Bitubo suspension equipped Aprilia RS660s.
Featuring what Bitubo describes as an "incredibly advanced configuration", De Keyrel's win featured its pressurised EBH cartridge.
Containing a series of innovative systems such as its patented Full Pressure System (FPS) with anti-friction surface coating and new overpressure control system (OPC). Race-proven (World SBK, BSB, IDM, CIV), they feature lightweight alloys, including Cr-Si steel springs, an Ergal (zinc aluminium alloy) cartridge body and 27 mm Ergal piston, 10 mm pumping rod with anti-friction surface coating and mechanical bottom-out with polyurethane buffer in oil resistant NBR (nitrile-butadiene rubber).
The upper fork cap has integrated spring preload adjustment and damping adjustment in compression and extension. Additional features include a patented Coaxial Compensation Chamber, pressurisation force control system and hydraulic lubrication separated from sliding lubrication. The kit includes spare springs (one each with a softer and a more rigid coefficient) to allow for three different set-up combinations.
At the rear, and derived from its race-winning XXF shocks, the XXZ (previously only available for its official race teams) is Bitubo's top-of-the-line technologically advanced rear mono shock.
Features include four-way adjustment - compression and extension at low and high speeds - with new settings designed to give the driver the best feeling possible.
The 14 mm stem increases smoothness, while a 30 mm piston reduces the fluid masses in motion for a faster response to stresses. Particular attention was paid to maximising the sensitivity and accuracy of the adjustments with the XXZ specifically designed to reduce inertia and ensure an immediate control of suspension oscillations.
The XXZB1 is the version with the most extreme pneumatic preload of the XXZ line, with "precision, speed and lightness the essence of a new design that can be operated via a separately available rechargeable quick coupling reservoir. The XXZ31 offers hydraulic preload adjustable up to 12 mm; the XXZ31V2 version allows the preload to be adjusted to a maximum of 10 mm".
www.bitubo.com
Long Life Warranty
From 2021, Bitubo has been making its 'Long Life Warranty' programme available for all its products.
Up to 2020, the standard Bitubo warranty was 24 months, but that can now be extended for up to a maximum of six years if a periodic overhaul is carried out by a Bitubo Technical Centre before the expiry of the standard warranty period.
The list of Bitubo Technical Centres is visible online in the Dealers and Technical Area of its website.