Thanks for your reply, I do not want an LED conversion, just easy replacement. The Lumen Halogen bulb you recommend looks good, but was curious what is the lumen output? I do not see this info in the text. Would you have that info?
I've researched the matter a little deeper. The thing is, the light output of halogen bulbs directly depends on the wattage (mostly). For 55W Lumen bulbs is means around 900 lumens.
Also, I found out that one of the brightest halogen bulbs on the market are Sylvania® - SilverStar Halogen Bulbs (H4)
They have 1500 lumen light output on a high beam.
If you need even brighter high beam, then consider Flosser® Ultra Halogen Bulbs (H4)
(up to 1650 lumen)
In terms of motorcycle-specific applications, check these bulbs that have vibration protection: PIAA® - Xtreme White Plus Halogen Bulbs (H4)