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| Installation Instructions | Service Information |
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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.
SACHS Racing Clutch
RCS 2/200 S2.6
Sintered metallic 2.6 mm, rigid hub
The twin-plate SACHS RCS racing clutch with 2.6 mm sintered metallic lining combines high torque capacity with minimal rotating mass. Two friction surfaces deliver strong power transfer at the same clamp load and friction level, while the thin lining enables a very direct response and short reaction times - ideal for sprints, circuit racing and time attack where precise engagement and repeatability matter.
The sintered metallic friction material remains stable across the operating window and provides a crisp, fast engagement. The 2.6 mm layout lowers the clutch pack’s moment of inertia - the engine revs more freely and the bite point stays precise and repeatable. At the same time, the twin-plate configuration spreads the work across two interfaces, reducing thermal load per surface.
This specification handles up to 1,665 Nm of maximum engine torque. Combined with the stiff cover and high-strength steel pressure/intermediate plates, it forms a durable, highly repeatable system engineered for uncompromising motorsport use.
Advantages
Light
low clutch height
Low mass and inertia
Less Mass
One of the greatest strengths of the RCS sintered clutch is its low mass and the associated low mass inertia.
The SACHS RCS clutches have been designed for racing with the objective that torque is transmitted rapidly and directly from the engine to the gearbox.
Reducing the weight of the crankshaft drive to lower the moment of inertia will considerably increase vehicle acceleration performance in the lower gears.
Faster Acceleration
If the clutch itself has a moment of inertia (MoI) of 0.061 kgm2, the MoI on the drive wheel will be 180 times higher (in first gear) for a reduction in transmission of 13.4:1 (13.42). If we convert this value into vehicle mass, we arrive around 145 kg of additional weight to be accelerated in first gear.
As a result of the low moment of inertia of the SACHS RCS clutch, shifting times are considerably reduced and the vehicle accelerates much faster.
Technology
Technical data RCS 2/200:
- Max. engine torque [Nm] : 1,665
- Release diameter [mm] : 49
- Release load [N] : 3,700
- Release travel [mm] : 5.0 +0.5
- Mass [kg] : 4.02
- Inertia [kgm2] : 0.02586
Clutch cover
The SACHS RCS 200 clutch cover is made from high-strength forged aluminium and engineered for maximum stiffness with minimal weight. The housing geometry promotes efficient heat rejection and stabilises the clutch pack’s temperature window.
A key feature is the extremely wear-resistant patented aluminium hard-coat. This full-surface treatment reduces friction/fit wear, protects against corrosion and extends service life.
Friction lining - sintered metallic
RCS 2/200 uses 2.6 mm on-sintered metallic linings directly bonded to the carrier (no separate pads). This reduces part count and mass, increases assembly stiffness and minimises lining compressibility - delivering a very precise bite point, rapid response and clearly defined engagement.
The small lining thickness reduces rotating inertia, letting the engine rev more freely and improving transient response. Direct heat transfer into the carrier accelerates heat rejection and improves repeatability during start sequences.
SACHS RCS hub
SACHS RCS 2/200 S2.6 racing clutches are available with multiple spline profiles precisely matched to the gearbox input shaft for perfect fit, reliable torque transfer and maximum durability in competition.
Hub lengths are available in short, medium and long. This ensures optimal packaging and correct actuation. The modular RCS 200 system enables a tailor-made racing clutch with maximum performance, thermal capacity and service life. Standard specification for RCS 2/200 (unless stated otherwise): hub length long-long.
Scope of supply
RCS 200 clutch cover (HA200), aluminium
1x RCS 200 pressure plate (PP200), steel
1x RCS 200 intermediate plate (IP200), steel
2x RCS 200 driven plate, sintered 2.6
Hub length: long-long
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
Super GT, ELMS,
DTM, STCC, NLS, TCR, GT World Challenge etc.
SINGLE-SEATER
Formula Ford,
Formula 3, Formula 4 etc. (RCS115/140)
RALLY
GT2 European Series,
WRC, ELMS, DRM, BRC, FRC etc.
Installation instructions:
As SACHS RCS clutches have not been developed specifically for a vehicle, but are vehicle-independent, the vehicle must be adapted to the clutch (see PDF documents above). The contour of the flywheel, the position, the travel and the shape of the release mechanism as well as the maximum available installation space must be checked and adapted if necessary.
Required information:
When ordering your SACHS RCS clutch, the required profile of the transmission input shaft must be specified. The different profiles offered are listed under „hub profile“. If you have any questions about the product, please do not hesitate to contact us via E-Mail or by telephone on +49 (0)40 / 3999 211.
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