The facts.
| Part number | CY043 |
|---|---|
| Type | Radial brake master cylinder |
| Piston diameter | 19 mm |
| Pivot distance | 20 mm, not recommended for street use |
| Lever | Revolution, black, length adjustable with inserts |
| Body finish | Green painted |
| Hose thread | M10x1 |
| Brake light switch | Not included (ID001 or ID002 separately) |
| Reservoir | Not included |
| Road approval | No German approval documented |
DescriptionThe whole story▼
This green CY043 pairs the 19x20 pivot geometry, sharper and quicker than the more common 18 mm setting but less suited to ordinary street riding, with a forged body painted green rather than left anodised or plated. A black Revolution lever is fitted, with reach set by inserts instead of a fixed long or short design. Buyers cross-shopping Accossato's painted range should note this 19x20 unit trades the CY042's road-friendly 18 mm pivot for a firmer, track-biased 20 mm setting.
Key Features
- 19 mm piston diameter for dual-disc front brake systems
- 20 mm lever pivot, quicker stroke, not recommended for street use
- Revolution lever in black, length adjustable with inserts
- Forged and painted body in green
- CNC-machined, fully made in Italy
- Offset riser that limits body flex under hard braking
- Stainless steel mounting screws and a zinc-plated bleed valve
- Seals in Formula 1 compound material
Construction and Material Quality
The CY043 body is forged aluminium, CNC-machined to size and then painted green, with the same stainless mounting screws, zinc-plated bleed valve and Formula 1 compound seals fitted across every colour in the painted range. An offset riser is built into the clamp to resist flex under a hard stop, and the bore geometry cuts the lever's passive travel by more than half against an ordinary radial unit.
A Painted Body, Not Bare Aluminium
Unlike the natural anodised or nickel-plated bodies sold on Accossato's unpainted 19x20 cylinders, this CY043 is forged and then painted, covering the machined surface completely in a solid colour rather than leaving the aluminium visible. Accossato offers the painted line specifically as a cosmetic option for bikes where a coloured master cylinder suits the rest of the build. As on the rest of the CY043 range, the Revolution lever stays black on this green body, with reach set by inserts rather than a choice of lever length.
Fitment and Compatibility
This green CY043 is confirmed for the same 65 motorcycles as the rest of the painted range, including the Suzuki GSX-R1000R, Honda GL1800 Gold Wing, BMW R18, Kawasaki NINJA H2R and Ducati Monster 797; the Fitment tab lists the full range with model years. The 19x20 cylinder with the Revolution lever also comes with black, blue, red, silver and fluorescent yellow painted bodies. This green CY043 needs the same firmer lever pull as the rest of the 20 mm range, a trade-off Accossato reserves for track and competition use.
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 19x20 radial brake master cylinder with the black Revolution lever, in the green painted body finish. Stainless steel mounting screws, the zinc-plated bleed valve and the Formula 1 compound seals are assembled on the unit. The brake light switch (ID001 or ID002) and the fluid reservoir are not included.
Specifications
- Part number: CY043
- Type: Radial brake master cylinder
- Piston diameter: 19 mm
- Pivot distance: 20 mm, not recommended for street use
- Lever: Revolution, black, length adjustable with inserts
- Body finish: Green painted
- Hose thread: M10x1
- Brake light switch: Not included (ID001 or ID002 separately)
- Reservoir: Not included
- Road approval: No German approval documented
DownloadsData sheet▼
FitmentWhich bikes this fits▼
- Aprilia DORSODURO 900 (2017–2019)
- Aprilia RS 660 (2021–2023)
- Aprilia RSV4 (2013–2015)
- Aprilia RSV4 1100 (2019–2023)
- Aprilia RSV4 R (2009–2023)
- Aprilia RSV4 RF (2015–2023)
- Aprilia RSV4 RR (2015–2019)
- Aprilia SHIVER 900 (2017–2020)
- Aprilia TUONO 660 (2021–2023)
- Aprilia TUONO V4 1100 (2015–2016)
- Aprilia TUONO V4 1100 FACTORY (2015–2020)
- Aprilia TUONO V4 1100 RR (2015–2018)
- BMW HP4 (2012–2014)
- BMW K 1300 R (2009–2016)
- BMW K 1300 S (2009–2015)
- BMW K1600 GT (2011–2023)
- BMW K1600 GTL (2011–2023)
- BMW M1000RR (2021–2023)
- BMW R NINET (2014–2016)
- BMW R1200R (2006–2015)
- BMW R18 (2020–2023)
- BMW S1000R (2014–2020)
- BMW S1000RR (2009–2023)
- Ducati DIAVEL (2011–2019)
- Ducati HYPERMOTARD 821 (2013–2016)
- Ducati Hyperstrada 821 (2013–2016)
- Ducati MONSTER 1200 (2014–2021)
- Ducati MONSTER 796 (2011–2016)
- Ducati MONSTER 797 (2017–2021)
- Ducati MULTISTRADA 1200 (2015–2020)
- Ducati MULTISTRADA 1260 (2018–2020)
- Ducati MULTISTRADA 950 (2017–2021)
- Ducati Panigale 1199 (2012–2017)
- Ducati Panigale 1299 (2015–2018)
- Ducati Panigale 899 (2014–2015)
- Ducati Panigale V4 (2018–2023)
- Ducati SCRAMBLER 1100 (2018–2023)
- Ducati STREETFIGHTER V4 (2020–2023)
- Ducati X DIAVEL (2016–2023)
- Honda CB1000R (2018–2023)
- Honda CBR 1000 RR (2008–2019)
- Honda GL1800 GOLD WING (2018–2023)
- Honda RC213V-S (2016–2018)
- Honda VFR1200F (2010–2016)
- Honda VFR800X Crossrunner (2015–2019)
- Kawasaki GTR 1400 (2014–2017)
- Kawasaki NINJA 1000 SX (2020–2023)
- Kawasaki NINJA H2 (2017–2023)
- Kawasaki NINJA H2 SX (2018–2023)
- Kawasaki NINJA H2R (2015–2023)
- Kawasaki Z1000 (2010–2023)
- Kawasaki Z1000R EDITION (2017–2020)
- Kawasaki Z1000SX (2011–2019)
- Kawasaki Z900RS (2018–2020)
- Kawasaki ZX-10 R (2006–2023)
- Kawasaki ZX-10 RR (2016–2023)
- Kawasaki ZX-6R (2003–2016)
- Kawasaki ZZR1400 (2006–2023)
- Suzuki GSX-R 1000 (2003–2023)
- Suzuki GSX-R 600 (2003–2023)
- Suzuki GSX-R 750 (2003–2023)
- Suzuki GSX-R1000R (2017–2023)
- Suzuki GSX-S1000 (2015–2023)
- Suzuki GSX-S1000F (2015–2023)
- Suzuki GSX-S1000GT (2022–2023)
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