Hesterberg-Cad/Cam Chain Guard for Yamaha YZF-R1/M RN32, RN49 & RN65 (2015–2026) — CNC Aluminium 7075-T6
0.175 k g
02 · Data & docs

The facts.

Technical data
ManufacturerHesterberg-Cad/Cam
Product typeChain guard / chain strike protector
Weightapprox. 0.175 kg
MaterialAluminium 7075-T6
ColoursNatural or black anodised
NoteSplash guard cover no longer compatible after installation
FunctionProtects the engine casing in the event of a chain break
DescriptionThe whole story▼

When a chain fails at speed, the consequences for your engine casing can be catastrophic. The Hesterberg-Cad/Cam chain guard for the Yamaha YZF-R1 and YZF-R1M — covering all RN32, RN49 and RN65 variants from 2015 to 2026 — replaces the factory plastic part with a precision CNC-machined aluminium 7075-T6 component engineered to absorb and deflect the forces of a chain break before they reach the engine casing.

Key Features

  • CNC-machined from aircraft-grade aluminium 7075-T6 for genuine impact resistance in the drivetrain area
  • Directly replaces the OEM plastic chain guard with a precision-fit, structurally superior alternative
  • Protects the engine casing against heavy damage in the event of a chain break — critical for track use
  • Covers all Yamaha YZF-R1 and YZF-R1M variants on the RN32, RN49 and RN65 platforms, model years 2015 to 2026
  • Available in natural aluminium finish or black anodised — both options suit track and road builds equally
  • Lightweight at approximately 0.175 kg, adding meaningful protection without unnecessary mass

Why This Part Matters for Serious R1 Riders

Riders who invest in suspension setup, braking systems, tyres and bodywork on their YZF-R1 often overlook the drivetrain protection area — until something goes wrong. At the power levels the R1 and R1M generate, the forces acting on the chain, front sprocket and engine casing during a chain break are enormous. The stock plastic guard offers only token resistance.

The Hesterberg-Cad/Cam chain guard addresses this directly. Precision CNC machining ensures an exact fit to the R1's chassis geometry, while aluminium 7075-T6 — the same alloy used in aerospace and high-performance motorsport components — delivers the structural integrity to genuinely contain a chain strike. Whether you are preparing for a trackday, competing in club racing, or building a performance road machine, this is a detail that earns its place on the bike.

Build Quality and Finish

Both finish options are carefully executed. The natural aluminium version has a clean, machined aesthetic that integrates well with aftermarket engine covers and exposed alloy components. The black anodised version offers an additional layer of surface hardness alongside a discreet, purposeful look. Either way, the anodising — where selected — improves corrosion resistance and surface durability compared to bare alloy.

Fitment & Compatibility

This chain guard is designed and manufactured specifically for the following models:

  • Yamaha YZF-R1 — RN32 (2015–2016), RN49 (2017–2020), RN65 (2021–2026)
  • Yamaha YZF-R1M — RN32 (2015–2016), RN49 (2017–2020), RN65 (2021–2026)

Important: this part replaces the original OEM plastic component. After installation, the factory splash guard is no longer compatible. Before fitting, confirm whether your motorcycle carries any additional add-on parts in the chain, front sprocket or splash guard area that may be affected.

Specifications

Attribute Detail
Manufacturer Hesterberg-Cad/Cam
Product type Chain guard / chain strike protector
Weight approx. 0.175 kg
Material Aluminium 7075-T6
Colours Natural or black anodised
Note Splash guard cover no longer compatible after installation
Function Protects the engine casing in the event of a chain break
What's includedEverything in the box▼
  • 1x chain guard
FitmentWhich bikes this fits▼
  • Yamaha YZF-R1/M RN32, RN49 & RN65 (2015–2026)
07 · Support

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08 · Paddock

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