...then replaced with a 100w bulb from NAPA (I know that it isn't a whole lot brighter, but every little bit helps...I'm old. The NAPA piece lasted almost 2 years.
Methinks that if you want a reliable, long term improvement you should opt for a EC-spec headlight assy (continental, not British ;-))
Its lens-cut features a RHS upward-kick on the LOW beam, illuminating the right shoulder almost twice as far as the left (towards the road centre/oncoming traffic) and is originally designed for 55/60W H4 bulbs, so no fuss with adaptor rings, etc...
Riding 1100s since '92 I still think the light is amazing, running both bulbs gives a brilliant LOW beam pattern at night, hitting HIGH once having passed the door-mirror while overtaking a car at night on a lonely rural road often makes me chuckle...
there shall be light... zing! :lol:
Don't think that race type 100W bulbs are ideal, the heat can dull the reflector, overheat the lamp base/socket and the increased current might fry the connectors and cabling (+ the increased load on the genny & VRR)... they also age way quicker, vaporized metal from the filament starts tinting the glass tube, etc...
After many riders were "glooming" in forums over premium +30% bulbs in the earl '00s, I thought I give them a try... once...
Upon removing the OEM standard bulbs from my '92 I realized that they had served me flawlessly since day one... by then for over a decade...
At night while riding home with those +30% thingies installed, I noticed an uncomfortable glare from the wet road surface ahead...
And that the first of those special bulbs already blew within only two weeks of usage, did it then for me... back to the rugged bike spec "standard" 55/60W types, which just
refuse to fail...
Had them in my previous '92 ST, and run them in my current '03 and '94 STs... no issues at all...