Iridium is a precious metal that is 6 times harder and 8 times stronger than platinum, it melting point is 1,200 degree (F) higher than platinum and conducts electricity better. This makes it possible to create the finest wire center electrode ever.
NGK spark plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK uses only the purest alumina silicate in its ceramic insulator which gives all NGK plugs greater strength and better heat transfer. NGK plugs are also copper cored and triple sealed to further aid in heat removal and prevent interior leakage.

Extra spark plugs are a must when you have a two-stroke motor. A fouled plug can leave you stranded anywhere, and it is impossible to tell before it happens, we recommend carrying one in your scoot at all times, just to be safe. Its also a good idea to have a couple while tuning or upgrading your scooter so you can get an accurate spark plug read, which will tell you your air/fuel mixture.

We have 3 available heat ratings/models of spark plugs to choose from: stock (BR7HS), BR8HS, and the 70cc (BR9HS) spark plugs below. Plus this high performance Iridium Spark Plug (BR9HIX). The higher the number the cooler the spark plug is making it more ideal for higher performance applications.

Technical Specifications:

14mm Thread, 12.7mm (1/2") Reach
20.6mm (13/16") Hex Size
Gasket Seat, Resistor, Removable Terminal
Materials used offer greater strength and better heat transfers