⟲ 360° — drag meThe facts.
| Part number | PK029 |
|---|---|
| Type | Radial brake master cylinder |
| Piston diameter | 19 mm |
| Pivot distance | 20 mm |
| Lever | Fixed, 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 PK029 radial brake master cylinder pairs a 19 mm piston, suited to dual-disc front brakes, with a fixed 20 mm lever pivot distance, the shortest-stroke, most immediate setting in the integrated-reservoir brake range. Accossato does not recommend this pivot for everyday street use and positions it instead for track and competition riding. The fixed lever, available in seven colours with a relieving eyelet, and the colour-matched integrated reservoir complete the unit.
Key Features
- 19 mm piston diameter, suitable for dual-disc braking systems
- Fixed 20 mm lever pivot distance, the shortest-stroke setting, not recommended for street use
- Fixed lever, long version, with relieving eyelet (RST), seven colours available
- Integrated fluid reservoir with a colour-matched cover, adjusting knob and oil level marker
- Forged aluminium body with a CNC-worked cover and lever
- Offset riser that reduces bending of the master cylinder while braking
- Stainless steel mounting screws and a zinc-plated bleed valve
- Seals manufactured from Formula 1 compound material
Construction and Material Quality
The forged aluminium body and CNC-worked cover and lever used here match every other integrated-reservoir brake master cylinder Accossato builds, with stainless steel screws, a zinc-plated bleed valve and Formula 1 compound seals making up the hardware. The offset riser limits flex in the unit under hard braking, and the internal passages are shaped to shorten the passive lever stroke, already reduced by more than half against a conventional radial master cylinder, even further through the 20 mm pivot geometry fitted here.
What the 20 mm Pivot Trades Away
Lengthening the pivot distance to 20 mm shortens the lever stroke needed to reach full braking power, which is why Accossato describes this as the prompter version within the 19 mm family, but the same amount of hand pressure then has to work against a longer lever arm, so more physical force is needed to achieve the same braking power as the 18 mm version. That is also why the 20 mm setting is not recommended for everyday street use: on the road, a lighter, more forgiving lever action is usually preferred over the sharpest possible bite. On track, where a rider is already committing to a hard stop, the extra leverage and shorter stroke can be an advantage, which is the use case Accossato designs this fixed-pivot version around.
Fitment and Compatibility
This master cylinder is listed against 65 motorcycles in our fitment data, spanning Aprilia, BMW, Ducati, Honda, Kawasaki and Suzuki ranges, including the BMW M1000RR (2021-2023), Ducati STREETFIGHTER V4 (2020-2023), Honda GL1800 GOLD WING (2018-2023) and Suzuki GSX-S1000GT (2022-2023). The Fitment tab on this page lists the complete set of confirmed model years; cross-check it against your own registration before buying.
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 PK029 radial brake master cylinder with its integrated reservoir, fitted with a long fixed 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 brake light switch, available separately as ID001 or ID002, and the mirror holder, available separately as MH007 or MH008, are not included.
Specifications
- Part number: PK029
- Type: Radial brake master cylinder
- Piston diameter: 19 mm
- Pivot distance: 20 mm
- Lever: Fixed, 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
DownloadsData sheet▼
FitmentWhich bikes this fits▼
- Aprilia DORSODURO 900 (2017–2019)
- Aprilia RS 660 (2021–2023)
- Aprilia RSV4 (2013–2015)
- Aprilia RSV4 FACTORY (2017–2023)
- 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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