⟲ 360° — drag meThe facts.
| Brand | Bonamici Racing |
|---|---|
| Part Number | CHAD03 |
| Type | Chain tensioner |
| Material | CNC-machined aluminium |
| Adjustment | Micrometric positions |
| Fitment | Yamaha YZF-R1/M RN32 & RN49 (2015-2019) |
| Installation | Direct fit, no modifications required |
| Origin | Made in Italy |
DescriptionThe whole story▼
Keeping your Yamaha YZF-R1/M chain correctly tensioned is one of the simplest things you can do to protect your drivetrain and sharpen day-to-day ride quality. The Bonamici Racing CHAD03 chain tensioner makes that job genuinely straightforward, offering micrometric adjustment and a rock-solid swingarm mount so you can set chain slack accurately and get back on the road without fuss.
Key Features
- CNC-machined aluminium construction delivers exceptional rigidity and corrosion resistance for long service life
- Micrometric adjustment positions allow precise, repeatable chain slack settings — no guesswork, no compromise
- Bolts directly into the swingarm without any modification to the motorcycle, keeping installation simple and reversible
- Exact OEM-replacement geometry engineered specifically for the YZF-R1 and YZF-R1M RN32 and RN49 frames
- 100% Made in Italy — manufactured to Bonamici Racing's exacting quality standards
- Available in five anodised colours to complement your bike's livery or personal preference
Precision You Can Feel Every Day
Sloppy chain adjustment is a common cause of uneven tyre wear, imprecise throttle response, and unnecessary stress on sprockets and chain links. The CHAD03 addresses this with micrometric adjustment positions machined into the body of the tensioner, so incremental changes are measurable and consistent from one side of the swingarm to the other. The result is a drivetrain that feels tighter and more responsive — whether you are commuting, touring, or pushing harder on a favourite road.
Built to Last, Easy to Fit
The CHAD03 is machined from aluminium billet using CNC processes that produce tight tolerances and a clean, lightweight component. The anodised finish — available in red, blue, gold, black, or silver — resists scratches and corrosion throughout the seasons. Because the tensioner mounts directly into the existing swingarm positions on the RN32 and RN49 chassis, there is no drilling, tapping, or additional hardware required. Fitting is a job you can complete at home with standard workshop tools.
Fitment & Compatibility
The Bonamici Racing CHAD03 chain tensioner is designed exclusively for the following models:
- Yamaha YZF-R1 RN32 (2015-2019)
- Yamaha YZF-R1M RN49 (2015-2019)
Specifications
| Brand | Bonamici Racing |
|---|---|
| Part Number | CHAD03 |
| Type | Chain tensioner |
| Material | CNC-machined aluminium |
| Adjustment | Micrometric positions |
| Fitment | Yamaha YZF-R1/M RN32 & RN49 (2015-2019) |
| Installation | Direct fit, no modifications required |
| Origin | Made in Italy |
FitmentWhich bikes this fits▼
- Yamaha YZF-R1/M RN32 & RN49 (2015–2019)
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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