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Mv Agusta Motor Spa F4 Rc, F4 Rr. Published by the DVSA as RM/2018/003 on 29 January 2018. Concern: The floating piston in the front brake master cylinder may crack.

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CarsMultiverse/UK recalls

A recall published by DVSA, the British vehicle safety authority, with every version of its wording that this site has read. Unchanged since first read.

DVSA referenceRM/2018/003
Launched29 January 2018
MakeMV Agusta Spa (listed as MV AGUSTA MOTOR SPA)
Manufacturer reference18RCO1
Vehicles listed112

Models

ModelVehiclesBuilt fromBuilt to
F4 RC5627 November 201429 June 2017
F4 RR5627 November 201429 June 2017

Concern

The floating piston in the front brake master cylinder may crack

Defect, as DVSA words it

A manufacturing defect exists in a production batch of front brake master cylinder components which MV AGUSTA has installed on a series of F4 RR and F4 RC model motorcycles. The defect in the front brake master cylinder could cause it to malfunction during normal use of the motorcycle leading to a loss of front braking ability and increasing the risk of a crash. Specifically crack generation on the front brake master cylinder PPS (polyphenilene sulphide) piston connecting the internal pressure area to the external surface. The consequence is that the front brake may not participate in stopping the bike properly. The rear brake is not affected and works correctly.

Remedy, as DVSA words it

Replace the synthetic piston in the front brake master cylinder with one made from aluminium machined from solid billet guaranteeing a higher strength material as well as eliminating the possibility of porosity.

What changed since we first read it

Nothing yet. The wording has been the same on every read since 4 September 2026. The file is read again every day; if DVSA rewrites the defect, remedy or concern, the old and new text will appear here with both dates.

The same recall in other registers

No match found in the American, Canadian or European registers by manufacturer reference. A recall can exist abroad under a different reference; this site only claims a match when the reference agrees.

Check this recall on the DVSA service

Read from DVSA's bulk recalls file (RecallsFile.csv, 7 MB) on 17 September 2026; this recall first read on 4 September 2026, read 15 times since. Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA, Check vehicle recalls. CarsMultiverse is an independent site, not an authority: the official notice is the one on the DVSA service.

MV Agusta Motor Spa elsewhere in this register

MV Agusta Motor Spa is named on 7 notices in the copy of the DVSA’s register held here, of which these are the nearest to this one in time.

The same concern: THE FLOATING PISTON IN THE FRONT BRAKE MASTER CYLINDER MAY CRACK

4 notices in this register name THE FLOATING PISTON IN THE FRONT BRAKE MASTER CYLINDER MAY CRACK. A defect that keeps returning under one heading is worth reading as a group rather than one notice at a time.

Reading this against the source

This page is what the DVSA published in its file of vehicle recalls, kept as it was read. The authority publishes only its current wording; if a notice is rewritten, the earlier version disappears there and is kept here. The whole register is at /uk-recalls, and how the reading is done is set out in the method.

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