Designed to make a
difference
ZF Race Engineering's SACHS motorsport clutches have stood for top-tier quality in international racing for decades. The ambition: continuous improvement and the drive to keep pushing the limits. From the lightest clutch used in Formula 1 to proven twin-plate and multi-plate systems in WRC, DTM, NASCAR, Le Mans and the Dakar Rally - ZF Motorsport technology is a core component of many winning cars worldwide.
Clutch Disc
SACHS RCS 115 2.6
Sintered metal 2.6 mm, rigid hub
The SACHS RCS 115 2.6 sintered-metal clutch disc from ZF Motorsport is a no-compromise lightweight race solution. With just 115 mm diameter - the smallest RCS format and closest in concept to modern Formula 1 clutches - it delivers ultra-low rotating mass, razor-sharp response and maximum packaging freedom in tight single-seater monocoques.
The sintered friction layer is directly sintered onto the carrier plate. This creates a very stiff friction pair with a precise bite point, aggressive launch characteristics and lightning-fast engagement - perfect for formula cars and prototypes where every gram and millisecond count.
The 2.6 mm lining keeps inertia to an absolute minimum, supports rapid engine spin-up and eases synchro load during shifts. The high-temperature sintered material remains stable under extreme friction energy and transmits torque reliably - ideal for short, intense duty cycles.
Key advantages at a glance:
High transmittable torque
Ultra-compact stack height
Higher burst speed capability
Extremely light - low mass and inertia
Highly dirt-resistant
Aggressive launch behaviour
Technology
Friction lining - sintered metal
The SACHS RCS 115 2.6 sintered-metal clutch disc from ZF Motorsport is the go-to choice for maximum motorsport performance.
Its dedicated sintered friction material delivers a very immediate bite with hard launches and snap engagement off the line, while handling significantly higher torque than organic discs - ideal for high-output race cars.
As a core element of the modular SACHS RCS 115 clutch system, it is purpose-built for professional motorsport - from formula to circuit racing and prototypes.
SACHS RCS hub
SACHS RCS 115 2.6 discs are available with precisely matched hub profiles for the specific gearbox input shaft - ensuring perfect fit, reliable torque transfer and durability in hard racing use.
RCS 115 discs are supplied exclusively with a short hub. The short design minimises inertia, reduces total clutch pack length and supports a direct, precise actuation - ideal for tight monocoques and uncompromising lightweight builds.
Quality Made in Germany
ZF Race Engineering has been among the technology leaders in motorsport for years. The combined know-how from top-level racing flows directly into the development of RCS racing clutches. State-of-the-art manufacturing methods, the highest quality standards and motorsport technologies make ZF Motorsport clutches the first choice for maximum performance and reliability - on circuits as well as in rallying, touring and endurance racing.
Applications
CIRCUIT RACING
Super GT, ELMS,
DTM, STCC, NLS, TCR, GT World Challenge etc.
SINGLE-SEATER
Formula Ford,
Formula 3, Formula 4 etc.
PROTOTYPES
Sports prototypes,
single-seater construction, IndyCar etc.
Description
Manufacturer