MotoGeometry

04/08/2026

Ride adventure

28/07/2026

For the Honda H'ness CB350, the correct NGK Iridium plug is the CPR8EAIX-9.

Why the CPR8EAIX-9 is the Right Fit

* Correct Heat Rating (8): The CB350 engine requires a colder plug (Heat Range 8) to handle sustained engine heat, higher compression, and long highway cruising without risk of overheating or pre-ignition.

* Exact Plug Type: The stock factory specification for the CB350 uses a CPR8EA-9 (or equivalent OEM plug). The CPR8EAIX-9 is the exact direct-fit Iridium IX upgrade.

Why Avoid the CPR6EAIX-9 on the CB350?

* The CPR6EAIX-9 is a hotter heat-range plug (6) intended for smaller, lower-revving or lower-compression engines (such as 100cc–125cc commuter bikes like the Hero Super Splendor).

* Putting a range 6 plug in a CB350 can cause the electrode tip to run dangerously hot, increasing the risk of knock, pinging, or pre-ignition during high-speed runs or hot summer rides.

24/07/2026

Small bright metal indicator

18/07/2026

Honda CB350 career, Saddle Stay not required, Fog light mount.

17/07/2026

12/06/2026

After 115000 km running throttle body condition, of Honda highness CB350.

02/06/2026

Tapered Roller Cone Set for Honda Highness.

28/05/2026

Honda CB350RS fast charger.

27/05/2026

Honda Highness exhaust on Honda CB350.