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 140 3.4
Sintered metal 3.4 mm, rigid design
The SACHS RCS 140 3.4 sintered clutch disc is engineered for uncompromising motorsport use. With a 140 mm diameter and a 3.4 mm friction lining, it delivers an ultra-compact, low-inertia package - ideal for single-seaters, touring cars and rally cars where packaging and weight are critical.
Compared with the RCS variant with a 2.6 mm lining, rotational inertia increases only slightly, while the additional 0.8 mm lining thickness provides a much larger wear reserve and therefore longer service life.
The high-strength sintered friction material ensures maximum thermal stability and reliably transmits high torque even in extreme conditions. In rigid configuration, the clutch engages very directly and enables aggressive launches and lightning-fast engagement at race starts - for maximum performance on track.
Key benefits at a glance:
High torque capacity
High thermal resistance
Low overall height
Higher burst rpm
Extremely light - low mass and inertia
Highly resistant to dirt/debris
Aggressive launch characteristics
Technology
Friction lining - sintered metal
The SACHS RCS 140 3.4 sintered clutch disc from ZF Motorsport is the go-to choice for top-tier racing performance. Compared with organic discs, it offers significantly higher thermal stability, higher rpm capability and greater resistance to dirt and oil.
The dedicated sintered friction material delivers a sharp bite for hard launches and instant engagement off the line. It also handles substantially higher torque, making it ideal for high-output race cars.
As a core module of the modular SACHS RCS 140 clutch system, it is perfectly matched to motorsport use - from rally to formula and circuit racing.
SACHS RCS hub
SACHS RCS 140 3.4 motorsport discs are available with different hub profiles precisely matched to the gearbox input shaft. This ensures perfect fit, reliable torque transfer and maximum durability in severe racing conditions.
Hubs are also offered in various lengths (short, medium, long). This allows an optimal fit to the available package space and correct actuation. The modular RCS 140 concept from ZF Motorsport enables a custom-tuned racing clutch with minimal inertia and maximum performance.
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 / TOURING CAR
Super GT, ELMS,
DTM, STCC, NLS, TCR, GT World Challenge etc.
FORMULA
Formula Ford,
Formula 3, Formula 4 etc.
RALLY
GT2 European Series,
WRC, ELMS, DRM, BRC, FRC etc.
Description
Manufacturer