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  • #31
    On older cars the light balance was all in the aim. These days, with computer designed reflection and refraction, the lense itself bends the light away from oncoming drivers, as well as directing more of it down onto the road ahead of you. Technology has come a long way....which is why I asked about upgrades in the first place. >.o

    The Cibie lenses look like they would follow that trend....directing the light down and away from other drivers. The Pilot ones you linked on ebay don't seem to have that feature, as the lense is almost totally clear with the few refracting angles running side to side (to bend some light down, presumably.)

    I kinda like that those are sold as a pair....I could throw one on the bike and the other in the fairing since I'll probably remount it at some point for cold-weather riding.
    My Special is as old as I am.

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    • #32
      Also, I just want to say that you guys have been awesomely helpful. Great way to welcome a new guy to the group.
      My Special is as old as I am.

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      • #33
        Originally posted by TopCatGr58 View Post
        ...but as Steve and others have stated, their light pattern "may" be more to the right on high beams, but not sure, thought that was achieved by the actual aiming of the lights while on the car?
        T.C., the low-beam cut-off bias is determined by the lamp and how it's mounted in the lens assembly; the lamp has a built-in shield that does the actual cut-off, but the 'bias' is set by how the lamp is rotated in relationship to the lens. On a standard LHD (US/Europe spec) lens, the lamp is mounted 'square' to the lens, giving that right-side bias in the light distribution. For a motorcycle application, the lamp is rotated slightly clockwise, leveling the cut-off for no bias. You also usually find that a motorcycle-specific lens assembly has a symmetrical lens design to focus the light, while an automotive unit will be assymmetrical to focus the biased output. This is done primarily to prevent glaring of oncoming traffic on low beam, but does effect the light pattern similarly on high beam.
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        '78E original owner - resto project
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