While searching internet for H4 LED bulbs most of the information was that the OEM housing was not designed to correctly focus the light emitted by the LED's.
Then I found this product.
https://www.summitracing.com/parts/sum- ... 8kQAvD_BwE
It has a glass lens and DOT approved.
Not affiliated at all with summit racing
Think this would fit in the R100RT headlight bucket?
1982 R100RT Replacing Headlight with LED
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Re: 1982 R100RT Replacing Headlight with LED
Not really, Most airheads, Road models anyway, take a ten inch reflector. This on is only seven inches. I suppose it would be possible to arrange some sort of surround to take up the extra space but it certainly isn't plug and play.
Rob
Rob
Re: 1982 R100RT Replacing Headlight with LED
10 inch reflector !!!! ????? hmmmRob Frankham wrote: ↑Fri Aug 15, 2025 5:20 am Most airheads, Road models anyway, take a ten inch reflector.
Mechanic from Hell
"I remember every raging second of it...
My bike was on fire, the road was on fire, and I was on fire.
It was the best ride ever!"
"I remember every raging second of it...
My bike was on fire, the road was on fire, and I was on fire.
It was the best ride ever!"
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- Joined: Thu Aug 26, 2010 2:11 pm
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Re: 1982 R100RT Replacing Headlight with LED
Hmm, I'll have to go and measure one... but I'm sure it's not 7" so the rest of the comment applies...gspd wrote: ↑Fri Aug 15, 2025 2:17 pm10 inch reflector !!!! ????? hmmmRob Frankham wrote: ↑Fri Aug 15, 2025 5:20 am Most airheads, Road models anyway, take a ten inch reflector.
Rob
Re: 1982 R100RT Replacing Headlight with LED
8" except for R45/65's which are smaller
barry
Cheshire
England
Cheshire
England
Re: 1982 R100RT Replacing Headlight with LED
My '73 R75/5's are aprox. 6 1/2". I even matched them up to a 7" and they are smaller.
Tom
Tom
'73 R75/5 SWB
'73 R75/5 LWB
'70 Guzzi Ambo 750
'72 Guzzi Eldo 850
'04 Guzzi California EVT
'07 HD Dyna Street Bob
'53 Triumph 6T (To be restored one day)
Tom
'73 R75/5 LWB
'70 Guzzi Ambo 750
'72 Guzzi Eldo 850
'04 Guzzi California EVT
'07 HD Dyna Street Bob
'53 Triumph 6T (To be restored one day)
Tom
Re: 1982 R100RT Replacing Headlight with LED
Same size as the R65 headlamp which can be used to upgrade a/5 to a H4 halogen bulb.
barry
Cheshire
England
Cheshire
England
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Re: 1982 R100RT Replacing Headlight with LED
Absolutely right 8 inch by the tape measure. Apologies, my memory ain't what it used to be... but a 7inch reflector still won't fit...
Rob
- Jeff in W.C.
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Re: 1982 R100RT Replacing Headlight with LED
If you're looking to upgrade your headlight to LED, here's an option. It's a smaller headlamp with an adaptor ring. I have not installed one, so I can't comment on the product other than it exists. http://www.motoelekt.com/lighting.htm
Jeff in W.C.
1988 R100 RT
2018 R1200 GS
"I've got my motorcycle jacket, but I'm walking all the time." Joe Strummer/Clash
1988 R100 RT
2018 R1200 GS
"I've got my motorcycle jacket, but I'm walking all the time." Joe Strummer/Clash