The CB1100 Community Forum

After reading on here that someone replaced his headlight bulb with a PIAA # 15224, I decided to confirm the application with the technical people at PIAA. They supply two different catalogs for autos or bikes and, therefor, have decided to apply different part numbers for each group. The 15224 is the correct bulb, but comes from the automotive catalog for use in cars. However, the direct equivalent to that bulb for bikes is the 70456. Although they are both rated the same and are PIAA's " Extreme White Plus ", the bike # 70456 incorporates a very important feature "Anti Vibration " that is only used in the 70456 & not in the 15224.
A note: PIAA bulbs are rated the same 60/55 as our original Honda bulbs, but because of using higher quality gases & manufacturing technics, they produce the equivalent of 100 watts while still drawing the same amperage & will not overheat the reflective lens.
I hope this is of some help when upgrading your lighting. The 70456 sells on eBay for about $35. Rocket

Good info Rocket. Thanks for digging into it and reporting on what you found.

Great info - thanks!

This post was very helpful Rocket! I actually ordered a Piaa 70456 from eBay according to the listing, however the vendor shipped me a 15224. I didn't check the part number prior to install. (Assuming it was correct) Thanks to your post, I checked the original packaging and identified the discrepancy. I contacted the vendor and they quickly shipped me Piaa 70456 to replace. I received and installed. This time it was the correct "anti vibration" bulb. Thank you for this helpful post!


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Good post Rocket. Much appreciated

I run PIAA extreme whites in all my bikes. The ant-vibration units were designed for Harleys, as they tend to vibrate much more than any of the Japanese fours or twins. The source of that info was a call made to PIAA a few years ago.