The facts.
| Brand | STM |
|---|---|
| Part number | FDU-S070 |
| Type | Slipper clutch (anti-hopping clutch) |
| Fitment | Ducati Panigale V2 955 (2020–2024) |
| Anti-hopping mechanism | Patented ball-ramp system |
| Pressure plate design | Diaphragm spring |
| Weight saving vs. stock | approx. 0.7–0.8 kg |
DescriptionThe whole story▼
STM's racing pedigree is built into every component of the FDU-S070 slipper clutch — a purpose-engineered assembly designed specifically for the Ducati Panigale V2 955. Drawing on decades of Italian motorsport heritage, STM has refined the basket, pressure plate and ball-ramp mechanism into a cohesive unit that transforms how the V2 behaves on corner entry, delivering the kind of rear-wheel composure that separates a quick lap from a great one.
Key Features
- Prevents engine over-rev on aggressive downshifts, keeping the rear wheel planted and the chassis settled through corner entry
- Significantly reduces rear wheel hop under braking, improving traction consistency lap after lap
- Patented ball-ramp technology governs the anti-hopping function with precision, offering predictable and progressive engagement at high engine speeds
- Controlled rear wheel slide behaviour for confident, sport-focused handling without unexpected snap
- Diaphragm spring eliminates pressure plate flutter, giving a cleaner, more tactile feel as the clutch lever is released
- Reduces the trigger impulse of a potential highside, an essential safety margin when carrying maximum corner-entry speed
- Rotating mass reduction of approximately 0.7–0.8 kg compared to the stock unit, sharpening throttle response and overall V2 performance
Design, Finish and Heritage
STM has been supplying clutch systems to World Superbike and MotoGP teams long enough to know that aesthetics and function are not mutually exclusive. The FDU-S070 carries the clean, machined appearance that has become an STM hallmark — precise tolerances, purposeful geometry, and a finish that looks as considered as the engineering beneath it. Fitting this unit is not simply a performance upgrade; it is a statement about how the Panigale V2 should be built.
Better control of clutch engagement in corners prevents the front end from dipping unexpectedly on partial throttle, a characteristic that riders pushing into new lap-time territory will feel immediately. The improved lever feel — smooth, progressive, free of the snatching that plagues standard wet-plate setups under track heat — means confidence builds faster and fatigue arrives later.
Performance and Track Use
On track, the FDU-S070 earns its place at every circuit that demands late, hard braking. The ball-ramp mechanism allows a measured amount of clutch slip as engine speed drops sharply on the overrun, decoupling the drivetrain jolt before it can upset the chassis. The result is a rear tyre that stays in contact with the tarmac rather than skipping across it, and a front tyre that can do its braking work undisturbed. Combined with the rotational mass saving, the V2 feels lighter on turn-in and more responsive to throttle inputs as the bike stands up on corner exit.
Fitment and Compatibility
The STM FDU-S070 is a direct-fit slipper clutch engineered exclusively for the following model:
- Ducati Panigale V2 955 — model years 2020, 2021, 2022, 2023, 2024
Specifications
| Attribute | Detail |
|---|---|
| Brand | STM |
| Part number | FDU-S070 |
| Type | Slipper clutch (anti-hopping clutch) |
| Fitment | Ducati Panigale V2 955 (2020–2024) |
| Anti-hopping mechanism | Patented ball-ramp system |
| Pressure plate design | Diaphragm spring |
| Weight saving vs. stock | approx. 0.7–0.8 kg |
FitmentWhich bikes this fits▼
- Ducati Panigale V2 955 (2020–2024)
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