The facts.
| Brand | Sitta |
|---|---|
| Part number | Z004 |
| Material | Chromium-molybdenum steel |
| Available teeth | 16 or 17 |
| Chain pitch compatibility | 520 and 525 |
| Fitment | Suzuki GSX-R 1000, 2017–2023 |
| Intended use | Road and track |
DescriptionThe whole story▼
When lap times matter and every gear change counts, the Sitta Z004 front sprocket delivers the precise, reliable power transfer that the Suzuki GSX-R 1000 deserves. Machined from chromium-molybdenum steel and engineered for both circuit and road use, this sprocket gives GSX-R 1000 riders from 2017 through 2023 a genuine performance edge — whether they are chasing a fast lap or exploiting every straight on a mountain road.
Key Features
- Chromium-molybdenum steel construction for exceptional strength and resistance to wear under sustained high-load conditions
- High-precision machining ensures a zero-play, drop-in fit — no shimming or adjustment needed after installation
- Available in 16 or 17 teeth to let you dial in your gearing: fewer teeth sharpen acceleration for circuit work, more teeth raise top-end speed for fast road use
- Compatible with both 520 and 525 chain pitches, giving you the flexibility to run a lightweight 520 conversion or retain the stock 525 drivetrain
- Reduced drivetrain wear — the hardened tooth profile distributes load evenly across the chain, extending the service life of the entire chain kit
Track Performance and Gearing Strategy
On the circuit, the front sprocket is one of the fastest and most cost-effective ways to tailor the GSX-R 1000's gearing to a specific track layout. Dropping to the 16-tooth option shortens the overall ratio, tightening acceleration out of slow and medium-speed corners where the GSX-R 1000's inline-four builds power rapidly. The 17-tooth option keeps gearing slightly taller, benefiting flowing, high-speed circuits where carrying momentum through long sweepers matters more than snapping out of hairpins.
The Sitta Z004 is equally at home on the road. Riders who spend time on twisting B-roads will appreciate the sharper throttle response of the 16-tooth setup, while those covering motorway miles alongside canyon carving will find the 17-tooth option a more balanced compromise.
Build Quality and Drivetrain Longevity
Chromium-molybdenum steel — the same alloy class used in performance motorsport components worldwide — combines high tensile strength with excellent toughness. Compared to standard carbon steel sprockets, it resists deformation under peak torque loading and maintains its tooth geometry longer, which in turn reduces the accelerated wear that a worn front sprocket inflicts on a new chain. Fitting quality components at both ends of the drivetrain is the most reliable way to keep replacement intervals long and running costs predictable.
Fitment and Compatibility
This sprocket is designed specifically for the following model:
- Suzuki GSX-R 1000, model years 2017 to 2023
- Compatible with 520 pitch chain
- Compatible with 525 pitch chain
Part number: Z004
Specifications
| Specification | Detail |
|---|---|
| Brand | Sitta |
| Part number | Z004 |
| Material | Chromium-molybdenum steel |
| Available teeth | 16 or 17 |
| Chain pitch compatibility | 520 and 525 |
| Fitment | Suzuki GSX-R 1000, 2017–2023 |
| Intended use | Road and track |
FitmentWhich bikes this fits▼
- Suzuki GSX-R 1000 (2017–2023)
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