Description of the article « Rigid sintered clutch disc 200 mm – 21 mm x 18 splines – MA/BE gearboxes Peugeot & Citroën – Helix 78-3873 »

Rigid sintered clutch disc 200 mm – 21 mm x 18 splines (MA/BE gearboxes)

Built for rally / track / racing, this rigid sintered clutch disc is designed to handle extreme loads: high temperatures, high torque and intensive runs. It delivers a very direct response and maximum power transfer — ideal for performance builds.

✅ Specifications

Diameter: 200 mm
Splines: Ø21 mm x 18
Thickness: 7.0 mm
Weight: 0.88 kg
Hub type: rigid

✅ Compatibility (MA/BE gearboxes)

Peugeot: 205, 106, 206, 309, 405
Citroën: AX, Saxo, ZX, BX, C2, C3, C4

🔁 Cross Reference

Helix Autosport: 78-3873

⭐ Highlights

High-performance sintered friction: high thermal resistance, very high torque capacity and reinforced durability — even in extreme conditions.
Forged Chromoly steel hub: hardened (induction hardening) for maximum strength. The blue tint highlights the premium treatment, improving input shaft spline life.
Available versions: standard (3 large pads) / full-face on request.
Customisation: custom spline profiles available to suit your gearbox/application.

🆚 Sintered vs cermet (quick comparison)

Feature	Sintered (iron sinter)	Cermet
Heat resistance	Superior at very high temperature	Good
Torque capacity	Very high	Medium to high
Clutch feel	Very direct, “on/off”	More progressive
Durability	Excellent (endurance / drag)	Good in moderate use
Best use	Extreme competition	Fast road + trackdays
Road use	Not recommended (harsh engagement)	More comfortable

✅ Why choose this rigid sintered disc?

Designed for the most demanding race environments
Maximum power transfer and very direct response
Reliable and consistent under high loads and temperatures
Custom manufacturing possible to suit your gearbox

Tip: a rigid disc is harsher than a disc with a sprung hub. Recommended for competition (rally / track) with the transmission and clutch actuation in good condition.

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