NGK spark plugs. Resistor type long thread plugs.

These use 14mm threads and are the LONG thread resistor type version. Select your temperature from the drop down - we have BR6ES, BR7ES, and BR8ES. Use BR6ES for stockers and BR7ES or BR8ES for kitted bikes. If you're looking for another temperature plug just shoot us an e-mail and we'll order them for ya.

Resistor plugs are recommended for use with any bike using a CDI or computer system to reduce the amount of radio frequency interference with your electronic ignition. Not sure if you need one? Double check with your CDI manufacturer. Most of them will specify.

Also, if you don't see the plug ya need in the drop down that means outta stock for now - Sorry! But don't worry, we usually get them back in stock with a few days.

Just in case you were wondering, here's a nifty PDF explaining how the letters and numbers for ngk plugs are determined.