⟲ 360° — drag meThe facts.
| Brand | Sitta |
|---|---|
| Part number | 201W |
| Material | Aluminium |
| Weight | approx. 350 g (size 45) |
| Chain pitch | 520 |
| Available teeth | 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 |
| Sprocket carrier | 80/104-6 hole |
| Fitment | Kawasaki ZX-6R / ZX-636 / ZX-6RR (2007–2026) |
| Available finishes | Silver, Black, Hard-anodised, Green, Red, Blue, Orange, Gold |
DescriptionThe whole story▼
Engineered for riders who demand precision and durability in equal measure, the Sitta 201W aluminium rear sprocket is purpose-built for the Kawasaki ZX-6R, ZX-636, and ZX-6RR (2007–2026). Manufactured from high-grade aluminium and available in eleven tooth counts from 37 to 47, this sprocket lets you dial in your gearing with confidence — whether you're chasing lap times or maximising road performance.
Key Features
- High-grade aluminium construction delivering exceptional strength at just 350 g (size 45), reducing unsprung and rotating mass for sharper throttle response.
- 520 pitch specification, optimised for performance and racing applications on the ZX-6R platform.
- Eleven tooth options (37 to 47) for precise gearing adjustment to suit track days, circuit racing, or spirited road riding.
- Sprocket carrier fitment: 80/104-6 hole pattern ensures accurate, trouble-free installation with no modification required.
- Eight finish options — including hard-anodised, which outlasts standard anodising under sustained high-load conditions — as well as black, silver, orange, blue, gold, red, and green.
- Precision CNC machining for consistent tooth profile, minimising chain wear and maximising drivetrain efficiency.
Gearing — Choosing the Right Tooth Count
Selecting the correct rear sprocket tooth count has a direct and measurable effect on how your Kawasaki ZX-6R performs. Understanding the trade-offs helps you make the right call for your riding style and circuit profile.
- Fewer teeth (37–42): produces a taller overall gear ratio, raising top speed and reducing engine revs at sustained high speeds — ideal for long straights and fast flowing circuits.
- More teeth (43–47): produces a shorter overall gear ratio, sharpening acceleration and improving mid-corner drive — the go-to choice for tight, technical tracks or punchy road riding.
The Sitta 201W gives you the full spectrum of that adjustment in a single, consistent product line, so you can fine-tune your ZX-6R's drivetrain without compromising on quality.
Construction and Finish
The 201W is CNC-machined from high-quality aluminium alloy, combining a low rotating weight with the structural rigidity needed to handle the power delivery of the ZX-6R's inline-four. The hard-anodised finish option is particularly notable: the hard-anodising process penetrates deeper into the aluminium surface than standard anodising, producing a significantly harder outer layer that resists abrasion and corrosion far more effectively during prolonged use. The remaining seven colour finishes — black, silver, orange, blue, gold, red, and green — are standard anodised and offer a clean, durable appearance suited to road and occasional track use.
Fitment and Compatibility
The Sitta 201W rear sprocket is compatible with the following models:
- Kawasaki ZX-6R Ninja — model years 2007 to 2026
- Kawasaki ZX-636 Ninja — model years 2007 to 2026
- Kawasaki ZX-6RR Ninja — model years 2007 to 2026
Sprocket carrier specification: 80/104-6 hole pattern. Chain pitch: 520 only. Verify your existing chain pitch before ordering.
Specifications
| Specification | Detail |
|---|---|
| Brand | Sitta |
| Part number | 201W |
| Material | Aluminium |
| Weight | approx. 350 g (size 45) |
| Chain pitch | 520 |
| Available teeth | 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 |
| Sprocket carrier | 80/104-6 hole |
| Fitment | Kawasaki ZX-6R / ZX-636 / ZX-6RR (2007–2026) |
| Available finishes | Silver, Black, Hard-anodised, Green, Red, Blue, Orange, Gold |
FitmentWhich bikes this fits▼
- Kawasaki ZX-6R/636/RR (2007–2026)
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