• High-tensile steel: Resists stripping or backing off.
• Exact thread pitch: Matches OEM crankshaft ends perfectly.
• Corrosion protection: Zinc-coated for longevity in humid pits.

This nut (SKU: JF168-4140) is a quick fix for loose setups, organizing your top-end hardware for peace of mind on the throttle.

Frequently Asked Questions

Q: Is this flywheel nut compatible with all 196cc clone engines?

A: Yes, the JF168-4140 is designed specifically for standard 196cc clone crankshafts, ensuring an exact thread pitch match for a secure fit.

Q: Should I use thread locker on this nut?

A: While the high-tensile steel and precise threading are designed to resist vibration, many racers choose to use a small amount of medium-strength thread locker as an extra precaution against backing off during high-RPM racing.

Q: What is the recommended torque specification for this nut?

A: You should always follow the torque specifications provided by your engine builder or the specific class rulebook (such as AKRA or WKA) for your engine build to prevent crankshaft damage.

Q: Why is the zinc coating important for a flywheel nut?

A: The zinc coating provides essential corrosion resistance, preventing the nut from rusting onto the crankshaft threads, which makes future engine maintenance and flywheel removal much easier.

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