⟲ 360° — drag meThe facts.
| Part number | PK025 |
|---|---|
| Type | Radial clutch master cylinder |
| Piston diameter | 16 mm |
| Pivot distance | 16 mm |
| Lever | Folding, long, with relieving eyelet (RST), 7 colours |
| Body | Forged aluminium, CNC-worked cover and lever |
| Hose thread | M10x1 |
| Brake light switch | Not included (ID001 or ID002 separately) |
| Reservoir | Integrated, colour-matched to lever, with oil level marker |
| Road approval | No German approval documented |
DescriptionThe whole story▼
The Accossato PK025 trades the adjustable PRS pivot used on the PK024 for a single fixed 16 mm lever pivot distance, which Accossato describes as the softest setting in the clutch range: the same 16 mm piston is retained, but the geometry is tuned to need less hand force at the cost of a longer lever stroke. The integrated fluid reservoir, long folding lever with relieving eyelet and seven-colour choice carry over unchanged from the rest of the family.
Key Features
- 16 mm piston diameter for a progressive clutch release
- Fixed 16 mm lever pivot distance, the softest setting, with a longer lever stroke
- Integrated fluid reservoir with a colour-matched cover, adjusting knob and oil level marker
- Folding lever, long version, with relieving eyelet (RST), seven colours available
- Forged aluminium body with a CNC-worked cover and lever
- Offset riser that reduces bending of the master cylinder during gear changes
- Stainless steel mounting screws and a zinc-plated bleed valve
- Seals manufactured from Formula 1 compound material
Construction and Material Quality
Hardware wise the PK025 matches the rest of the integrated-reservoir clutch range: a forged aluminium body with the cover and lever CNC worked, stainless steel screws, a zinc-plated bleed valve and seals made from Formula 1 compound. What changes against the adjustable PK024 is purely the lever geometry, since the pivot distance here is cast at a single 16 mm figure rather than offered as a three-position choice. The offset riser and the shortened passive stroke design, which cuts lever travel before the clutch actually disengages by more than half compared with a conventional radial unit, are unchanged across the family.
What a Fixed, Softer Pivot Distance Means at the Lever
Accossato calls the 16 mm pivot distance the softest version in the clutch line because, for the same amount of hand pressure applied at the lever, less physical force is needed to disengage the clutch than with a longer pivot setting such as 17 or 18 mm. The trade-off is lever travel: the stroke needed to fully disengage is longer than it would be on a shorter or adjustable pivot, so riders who value the lightest possible lever action, for example on a long-distance adventure bike ridden mostly in traffic or on gravel, gain comfort at the cost of a slightly less immediate feel at the clutch. Because the pivot is fixed rather than adjustable, there is nothing to set up after fitting; the unit behaves the same way every time the lever is pulled.
Fitment and Compatibility
Our fitment data confirms 51 motorcycles for this clutch master cylinder, among them the BMW F900R (2019-2019), Honda CB1100RS (2017-2017), Kawasaki Z900 (2017-2019) and Suzuki SV650 (2016-2020), across BMW, Ducati, Honda, Kawasaki and Suzuki ranges. Exact model years for every confirmed motorcycle are listed in the Fitment tab on this page; cross-check it against your registration before you order.
Road Approval
This master cylinder is not supplied with German road-approval documentation; it is intended for track and competition use.
Scope of Delivery
The package includes the Accossato PK025 radial clutch master cylinder with its integrated reservoir, fitted with a long folding lever and relieving eyelet (RST) in the colour selected, together with the mounting nut. Stainless steel mounting screws, the zinc-plated bleed valve and the Formula 1 compound seals are assembled on the unit. The stop light switch, available separately as ID001 or ID002, and the mirror holder, available separately as MH009 or MH010, are not included.
Specifications
- Part number: PK025
- Type: Radial clutch master cylinder
- Piston diameter: 16 mm
- Pivot distance: 16 mm
- Lever: Folding, long, with relieving eyelet (RST), 7 colours
- Body: Forged aluminium, CNC-worked cover and lever
- Hose thread: M10x1
- Brake light switch: Not included (ID001 or ID002 separately)
- Reservoir: Integrated, colour-matched to lever, with oil level marker
- Road approval: No German approval documented
FitmentWhich bikes this fits▼
- BMW F750GS (2020–2020)
- BMW F800GS (2008–2016)
- BMW F800GS Adventure (2013–2016)
- BMW F800GT (2012–2020)
- BMW F800R (2009–2017)
- BMW F850GS (2019–2020)
- BMW F850GS ADVENTURE (2019–2020)
- BMW F900R (2019–2019)
- BMW F900XR (2019–2019)
- BMW G310GS (2017–2020)
- BMW G310R (2016–2020)
- BMW R NINET (2016–2020)
- BMW R NINET PURE (2016–2020)
- BMW R NINET RACER (2016–2016)
- BMW R NINET SCRAMBLER (2016–2020)
- BMW R NINET URBAN G (2020–2020)
- BMW R1200GS (2016–2018)
- BMW R1200GS ADVENTURE (2013–2018)
- BMW R1200R (2015–2016)
- BMW R1200RS (2015–2016)
- BMW R1200RT (2016–2018)
- BMW R1250GS (2019–2019)
- BMW R1250GS ADVENTURE (2018–2019)
- BMW R1250R (2019–2019)
- BMW R1250RS (2019–2019)
- BMW R1250RT (2019–2020)
- BMW S1000 XR (2015–2019)
- Ducati SCRAMBLER 400 (2016–2016)
- Honda CB1100 (2017–2017)
- Honda CB1100RS (2017–2017)
- Kawasaki ER-6 F (2012–2016)
- Kawasaki ER-6N (2012–2016)
- Kawasaki NINJA 650 (2017–2018)
- Kawasaki VERSYS 1000 (2012–2018)
- Kawasaki VERSYS 650 (2007–2020)
- Kawasaki VERSYS-X 300 (2017–2017)
- Kawasaki VULCAN S (2017–2020)
- Kawasaki W800 (2011–2018)
- Kawasaki Z300 (2015–2015)
- Kawasaki Z650 (2017–2022)
- Kawasaki Z800 (2013–2016)
- Kawasaki Z800E (2013–2016)
- Kawasaki Z900 (2017–2019)
- Suzuki DL1000 V-STROM (2014–2019)
- Suzuki DL1050 V-STROM (2020–2022)
- Suzuki DL650 V-STROM (2012–2020)
- Suzuki GSF1250 BANDIT (2007–2016)
- Suzuki GSX-S750 (2017–2017)
- Suzuki SFV650 GLADIUS (2009–2015)
- Suzuki SV650 (2016–2020)
- Suzuki SV650X (2018–2018)
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