Description of the article « 184mm single-disc clutch kit Clio Williams – lightweight 3.5 kg flywheel (7.25") »

184mm single-disc clutch kit Renault Clio Williams – lightweight 3.5 kg flywheel

This Ø184mm (7.25") single-disc clutch kit for the Renault Clio Williams is designed to provide high torque capacity while significantly reducing rotating mass. The lightweight flywheel made from forged, nitrided CrMo steel improves engine response, rev pick-up and precision under sporty driving (rally, track, hill climb).

📦 Kit contents

Ø184mm (7.25") single-disc clutch – ultra-light: 2.85 kg
Ø184mm (7.25") flywheel – lightweight: 3.5 kg
Clutch release bearing kit (racing grade) + specific aluminium support

🧱 Component features

Flywheel (lightweight & premium quality)

Weight : only 3.5 kg
Material : forged CrMo steel
Treatment : nitriding
Hardness : HRC 58–62 (over 2× harder than a standard flywheel)
Benefit : helps prevent wear of the starter ring gear on high-compression engines
Result : increased reliability and service life

Clutch cover

Material : forged 6061-T6 aluminium, hard anodized
Construction : steel-riveted legs for maximum durability
Contact points : hardened steel buttons/rivets → smooth, wear-resistant surface for legs and pressure plate
Tightening torque for bolts (M8x1.25 grade 12.9): 41 Nm

Pressure plate

Material : forged chromoly steel
Treatment : cryogenic processing (depending on application)

Sintered clutch disc Ø184mm (7.25")

Material : proprietary sintered metal blend, manufactured to precise tolerances
Standard design : 3 large pads for strong, reliable engagement
Hub : machined forged chromoly, induction hardened (max strength + wear resistance)
Customization : available on request (e.g. specific splines)

Release bearing + specific aluminium support

Bearing : racing grade, designed for high mechanical loads and high temperatures
Aluminium support : AL6061-T6, hard anodized (lightweight and strong)

🏁 Key benefits

Capacity : single-disc version rated for 400+ hp / 450+ Nm (depending on specs)
Weight reduction vs OEM: sharper acceleration, better engine response, improved handling and braking feel
Improved shifting at high RPM
Long service life of friction components → lower running costs
Plug & Play : no modifications required
Better pedal feel and modulation

Info : depending on existing vehicle modifications, a minor setup adjustment may be required.