Name: Engine Front Sprocket Washer [Safety Lock] - Hyosung GV125S Bobber EFi
SKU: 09167H20002JS
Availability: InStock

Engine Front Sprocket Washer [Safety Lock] – Hyosung GV125S Bobber EFi

Estimated delivery dates: Feb 17, 2026 - Feb 18, 2026

£8.99

⚠️ SAFETY CRITICAL: GENUINE FRONT SPROCKET LOCK WASHER

Don’t risk a catastrophic drivetrain failure! This genuine OEM safety lock washer is a critical component that physically locks the front sprocket nut in place. A worn washer compromises this mechanism, which can lead to the nut loosening during high-speed operation. Always replace this washer when servicing your chain and sprockets.

✅ Genuine OEM Part: Perfect fitment and guaranteed safety functionality.
🛠️ Locking Mechanism: Prevents sprocket nut slippage and unwanted movement.
⚙️ Essential Maintenance: A non-negotiable replacement item during every chain service.
📦 Note: Supplied in Silver or Yellow finish (depending on stock), both are 100% genuine.

🏁 Tech Tip: This part makes the difference between a secure ride and a potentially dangerous mechanical failure. Don’t compromise on safety!

Description

This genuine front sprocket washer safety lock is a small but critical component in your Hyosung’s drivetrain system. It fits securely between your engine’s front sprocket and crankshaft, physically locking the sprocket nut in place to prevent loosening during operation. This prevents unwanted movement or slippage of your sprocket, protecting your chain, gearbox, and potentially avoiding dangerous riding conditions.

💎 Performance with Reliability!

Always use genuine replacement parts like this safety lock. Small parts make a massive difference in longevity and reliability, especially in safety-critical areas. The OEM design ensures precise fitment, unlike generic aftermarket alternatives.

Safety Critical Prevents catastrophic nut loosening.	Genuine OEM Guaranteed fitment & material quality.
Protects Gearbox Avoids damage from sprocket slippage.	Essential Maintenance Replace every time the sprocket is removed.

📜 Confirmed Fitment Guide (From 2019+ Onwards)

This genuine washer safety lock is for the following 125cc EFI models:

✅ FITS: Hyosung GV125S Bobber EFi (From 2019+ Onwards)
✅ FITS: Hyosung GV125S Injected Models

OEM Part Number: 09167H20002JS

💡 PAIR WITH A CHAIN KIT:
It’s essential to swap this washer when you fit a new chain and sprocket kit. Make it a complete, safe job. View our GV125S Chain & Sprocket Kit here.

🔧 Install Tips

Clean Threads: Clean the sprocket hub and crankshaft threads to remove any dirt or old threadlocker residue before installation.
Torque Specs: Use the manufacturer’s recommended torque settings when tightening the sprocket nut. Overtightening can snap the bolt; under-tightening is a safety hazard.
Engage Lock: Ensure the washer’s locking tab is physically bent over one of the flats of the tightened nut to prevent rotation.
Peace of Mind: Using a fresh, genuine OEM part guarantees fit and peace of mind on every ride. Don’t compromise on safety.

📧 FITMENT QUESTIONS? Email us or reach out to our friendly community on the Hyosung Forums. We’re here to help!