Author Topic: K75RT Head light and tail/brake light upgrade.  (Read 6688 times)

Offline krobert

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  • Posts: 18
K75RT Head light and tail/brake light upgrade.
« on: May 10, 2017, 11:13:12 PM »
I'm new around these parts,  I just picked up my first K-bike.  A 1992 RT.  I'm planning to do a bit of night riding, OTW home from work.  I've seen several post about light upgrades and am considering some of them.  I'm curious if anyone could recommend parts or some type of kit for this?  Thanks!
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline Laitch

  • Faster than a speeding pullet
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Re: K75RT Head light and tail/brake light upgrade.
« Reply #1 on: May 10, 2017, 11:17:04 PM »
  I've seen several post about light upgrades and am considering some of them.
Welcome, krobert! Which upgrades are you considering?
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline krobert

  • Motobrick Curious
  • Posts: 18
Re: K75RT Head light and tail/brake light upgrade.
« Reply #2 on: May 10, 2017, 11:20:45 PM »
Thank you,
I seen one with a LED light strip at the top of the head light, the other, two small LED light strips in the tail light.  I was also thinking of installing two cheap amber light in the front, mostly for visibility.
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline Elipten

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  • Posts: 715
Re: K75RT Head light and tail/brake light upgrade.
« Reply #3 on: May 10, 2017, 11:53:13 PM »
For the headlight led strip I took the light apart, cut a 12" flexible led strip to size placed it in the metal strip above the main headlight where the little bulb does its illumination. I used some foam to press it in place against the glass and wired it into were the little bulb was wired




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  • San Antonio, TX
  • 1990 K75RT

Offline krobert

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Re: K75RT Head light and tail/brake light upgrade.
« Reply #4 on: May 10, 2017, 11:54:43 PM »
For the headlight led strip I took the light apart, cut a 12" flexible led strip to size placed it in the metal strip above the main headlight where the little bulb does its illumination. I used some foam to press it in place against the glass and wired it into were the little bulb was wired




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Do you remember where you got the led strip?
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline Elipten

  • ^ SuperNatural Motobricker
  • Posts: 715
K75RT Head light and tail/brake light upgrade.
« Reply #5 on: May 10, 2017, 11:59:17 PM »
Probably eBay, or Amazon or some such.  Readily available.  Get white led, usually self-adhesive back.


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  • San Antonio, TX
  • 1990 K75RT

Offline Laitch

  • Faster than a speeding pullet
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Re: K75RT Head light and tail/brake light upgrade.
« Reply #6 on: May 11, 2017, 12:17:41 AM »
I seen one with a LED light strip at the top of the head light, the other, two small LED light strips in the tail light.  I was also thinking of installing two cheap amber light in the front, mostly for visibility.
Go to the Repair Guidance section's Master List then scroll down to Lighting and click on the links that interest you.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline krobert

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  • Posts: 18
Re: K75RT Head light and tail/brake light upgrade.
« Reply #7 on: May 11, 2017, 12:57:56 AM »
Thanks all!  I think I can put something together for pretty cheap.  I'll try to post when I'm finished.

On another note, I believe I have the 35 AMP alternator.  Do you guys think it will run extra lights?
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline Elipten

  • ^ SuperNatural Motobricker
  • Posts: 715
Re: K75RT Head light and tail/brake light upgrade.
« Reply #8 on: May 11, 2017, 01:14:16 AM »
Just depends on what you plan to run.  More is better.  I did the upgrade on mine for just this reason.


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  • San Antonio, TX
  • 1990 K75RT

Offline Martin

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Re: K75RT Head light and tail/brake light upgrade.
« Reply #9 on: May 11, 2017, 03:08:51 AM »

Welcome to the asylum from the land of OZ. LEDs don't draw much current.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Mighty Gryphon

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Re: K75RT Head light and tail/brake light upgrade.
« Reply #10 on: May 11, 2017, 03:12:59 AM »
I did the LED strip in the parking lights of my RT and RS.  When getting the strip look for the highest output LED's which I think are the 5050.  Even so, they don't throw a lot of light.  What I did to get a bit more contrast was to mask off the actual LED's and spray paint the strip flat black with a light coat of paint. 

Running lights are good, but I use 10 watt LED units you can get on eBay for less than $30 a pair.  Two of them draw about 1.8A vs. 7A for a pair of 40W halogen lamps.

http://www.ebay.com/itm/2x-2-10W-CREE-LED-Work-Light-Spot-offroad-Driving-fog-Lamp-Motorcycle-4X4-ATV-/282228618856?hash=item41b622f668:g:RQoAAOSwx2dYCwQ1&vxp=mtr

They are intensely bright and even in daylight look like a pair of arc welders.  I mount them under the chin of the fairing. 

To boost the output of the headlight and protect your hi/lo handlebar switch get a relay harness from Eastern Beaver.  All my bikes have them and they do help the light output by eliminating the voltage drop through the wiring harness and handlebar switch. 

http://www.easternbeaver.com/Main/Wiring_Kits/H4_Kits/h4_kits.html

For visibility from the rear, I put Scotchlite red retroreflective material on my tragkorbs and iconic 22L top case.  I also have installed the Ktail2 enhancement kit.  More tail light and really lets them know you hit the brakes.

http://www.run-n-lites.com/K-T-2.html

I have these on my RS with a 35A alternator, and so far have had no electrical issues.  As long as you aren't running a stereo and heated jacket and gloves, you should be all right.
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline jakgieger

  • itinerant farmer
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Re: K75RT Head light and tail/brake light upgrade.
« Reply #11 on: May 11, 2017, 09:06:09 AM »
I sought additional lights as well.  The eastern beaver relay kit was simple to install.  It allows me to run the bigger headlight bulb!  This thread shows  two front aux light brackets.  I was unable to find pictures or a bracket for sale, so, I built my own.  Afterwards, JO posted a good picture of an aftermarket bracket...On my bracket I run 2 LED's similar to what Gryphon is showing you.  BTW, haven't got around to the alternator upgrade yet, but I don't run other accessories.   Good luck
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline krobert

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Re: K75RT Head light and tail/brake light upgrade.
« Reply #12 on: June 27, 2017, 07:31:27 AM »
Thank you for the many replies. :clap: I have since found a couple amber running light and one white light to add to the front.  I ride at night often to and from work.  A 150 mile round trip commute.  :2thumbup: The bike is great for it, although I do have to fill up everyday.  :eek: I hope to get the front light installed soon and then start on the back.  Busy times with my newborn baby.  I hope to post some pictures when it is done!!
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline jakgieger

  • itinerant farmer
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  • Posts: 618
Re: K75RT Head light and tail/brake light upgrade.
« Reply #13 on: June 27, 2017, 08:42:07 AM »
Watch out for German Shepherds!  Your story reminds me of when I was first married and had a new baby.  I was riding an R60/5 daily on a 70 mi. commute.  Coming home one night I hit the dog...got slowed down to 45 mph prior to impact.  Somehow I "rode it out".  Told the wife when I got home, ipso facto..."we" sold the bike :bmwsmile .  If I had been riding my K, I would have been able to stop!  Good luck with the bike and the baby.
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline krobert

  • Motobrick Curious
  • Posts: 18
Re: K75RT Head light and tail/brake light upgrade.
« Reply #14 on: June 27, 2017, 08:57:06 AM »
Watch out for German Shepherds!  Your story reminds me of when I was first married and had a new baby.  I was riding an R60/5 daily on a 70 mi. commute.  Coming home one night I hit the dog...got slowed down to 45 mph prior to impact.  Somehow I "rode it out".  Told the wife when I got home, ipso facto..."we" sold the bike :bmwsmile .  If I had been riding my K, I would have been able to stop!  Good luck with the bike and the baby.
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Thanks, I try to keep an eye out though I never know when something will jump out there!  :falldown: I never tell my wife nothing about nothing when it comes to the bike.  She hates me riding,  though hoping she will let me take her on the K75 in time.  :yes
  • Madison, IN
  • 92 BMW K75RT, 1981 HONDA CM400A
"What's that sound?"
"That's a K bike."
"I want one!"

Offline jakgieger

  • itinerant farmer
  • ^ SuperNatural Motobricker
  • Posts: 618
Re: K75RT Head light and tail/brake light upgrade.
« Reply #15 on: June 27, 2017, 09:05:46 AM »
So....funny thing there.  Been hoping the same here.  After, I got the K rebuilt, our first ride together, I like an idiot took a 30 mph corner @55 with her on the back.  After, she cooled down :bmwsmile ,she proceeded to really tune me up :hehehe .  After years of marriage and kids, it just doesn't sting as bad! 
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

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