JetPrime JP ACS 050 Ducati Monster 821 — Throttle Housing — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ACS 050
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsDucati Monster 821 (2017–2021)
InstallationPlug-and-play, no wiring harness modifications required
DescriptionThe whole story

The Monster 821 with a machined throttle housing in black anodised Ergal, leaving the original switchgear in place.

Key Features

  • Ducati Monster 821 (2017–2021)
  • Throttle housing without switch block
  • CNC-machined from Ergal 7075
  • Black anodised
  • Machined throttle tube bore
  • Uses the original cables or sensor

The Middleweight Monster

An 821 cc Testastretta 11 degree engine making 109 hp in a trellis frame, at a weight and a price that made it the volume model. It was the Monster most people actually bought.

Easier Than It Looks

Ducati tuned the 821 for midrange rather than peak output, which made it genuinely usable in traffic. It is the version that persuaded a lot of riders that a Ducati could be an everyday motorcycle.

A Frame From the Seventies

The steel trellis hung from the cylinder heads is an idea Ducati has been refining for fifty years. On the Monster it is also the styling, which is why it has never been replaced by aluminium.

Just the Housing

This replaces the throttle assembly without touching the switch block. It suits an owner whose electrics are healthy and who simply wants better than moulded plastic at the grip.

Where the Tube Runs

The bore is machined rather than formed, which keeps the rotation smooth long after an injection-moulded housing has developed a little play against the grip.

Black Anodised

One finish, converted into the aluminium. The bar on a Monster is one of the most looked-at parts of the motorcycle and restraint generally serves it better than contrast.

Ergal 7075

Roughly double the yield strength of ordinary machined alloy. It matters on a part clamped to a handlebar and expected to remain exactly where it was fitted.

Ridden in Everything

An 821 is frequently its owner's only motorcycle, which means winters, rain and road salt. A one-piece machined body gives none of it a seam to work into.

Fitment and Compatibility

  • Ducati Monster 821 (2017–2021)

Specifications

Model JP ACS 050
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Ducati Monster 821 (2017–2021)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x throttle housing
FitmentWhich bikes this fits
  • Ducati Monster 821 (2017–2021)
07 · Support

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08 · Paddock

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