Tech Guide

Tech Guide

Read our carefully prepared and easy-to-understand instruction manuals or watch how it gets done in our video tutorials.

Installation Guide List

Installation Guide Videos

Frequently Asked Questions

Will a 260 wide tire fit the Wide Rear Fender K59437?
The Kodlin wide rear fender K59437 was designed for the 240/250 wide tire. The fender can be made to physically fit a 260 wide tire if you carefully shim the fender between frame and struts to get fender properly aligned over the tire. Run the 260 at your own risk though as we recommend the 240/250 tire only not the 260.
Does the Sportster S Rear Lightbar K68499 fit with the HD P&A pillion pad, backrest, or fender extension?
The Sportster S Rear Lightbar K68499 was developed before those parts were made available so it was not designed to fit with the HD pillion pad, backrest, or fender extension as is.
Do we offer jiffy stands or kickstands to go with our lowering kits?
Unfortunately, we do not have anything to offer at this time.
Are your lowering kits adjustable?
No, they are not designed to be adjustable.
Do I need a shock tool to install your lowering kit?
Yes, it is highly recommended to use a tool made for that purpose (i.e. Kodlin K66030 Compression Tool). You will need to compress your shock spring to remove the lower shock end. The spring will be under pressure and you will need a safe way to control that pressure as you compress the spring. A tool that allows you to do this safely is critical. We don’t recommend the use of “home made tools”. We highly recommend working with a certified dealership / mechanic to install our products.
Can I use somebody else’s shock tool to install your lowering kit?
Yes, if the tool can compress the shock so you can remove the lower shock end.
Do you rent your shock spring compression tool?
No, not currently.
Do I need to lower my front if I install your lowering kit?
No, you do not need to. If you are in tune with your bikes handling, you may notice a slight difference in its handling. You can lower the front if you want stock like handling with the exception that it is lower and may scrape more depending on your riding style.
I watched a video and they cut down the rubber dampener on the shock, do I need to do that also with your lowering kit?
No, our lowering kits were designed for stock dampener size, so no cutting or modifications are needed.
I lost my instructions, where can I get a copy?
Copies and the latest updates of our install instructions as well as videos and other technical information can be found on our website.
Are your LED turn signals plug and play?
Not entirely. We are working hard to make new products as plug and play as possible. Front and rear lights sets, K68497 and K68499, for the Sportster S are when using our harness KUS11600 and the Low Rider ST front lights, K68532 are. More coming out soon. Because of the custom nature some lights never will be.
My Kodlin rear turn signal has four wires, but my bike has only two, what do I do?
Your bike most likely has an OEM taillight and was wired for a single turn function with only two wires. You can add your own additional two wires or order one of our install kits. KUS11500 has all the wires and a load balancer built in, KUS11501 has just the four wires for each side and no load balancer. They both simply plug into OEM main harness and provide plenty of wire to connect your custom LEDS to. Look at our Tech-Tips for a reference on how to wires them to LED lights.
  1. M8 Softail Rear Install Kit KUS11500 to LED Lights - Kodlin harness with load balancer.
  2. M8 Softail Rear Install Kit KUS11501 to LED Lights - harness only, no load balancer.
Do I need a load balancer/equalizer to install Kodlin LED turn signals?
It depends on the year and model of your motorcycle. If your bike is newer and has a BCM you can try running your flasher for 3-5 minutes to see if your BCM will automatically adjust for new load. If your bike does not adjust or you have an older bike, then you will need to add a load balancer (equalizer) to correct for a fast-flashing dash indicator or DTC.
I installed my 3-1 rear LED turn signals, but my brake light is amber not red. Is it bad?
No, your BCM is most likely configured for turn signals only because it had no OEM taillight and all four wires were used to wire each of the LED lights. I suggest wiring as referenced in the Tech-Tip that applies to your situation,
  1. M8 Softail Rear OEM Light Harness to LED Lights - Splicing into stock OEM light harness.
  2. M8 Softail Rear Install Kit KUS11500 to LED Lights - Kodlin harness with load balancer.
  3. M8 Softail Rear Install Kit KUS11501 to LED Lights - Kodlin harness only, no load balancer.
What is a 2-1 intensifier?
Our front LED turn signals currently operate like a single filament(function) bulb for turn signal only and the USA model of bikes run a dual filament(function) bulb setup for running and turn signal lights. Installing the 2-1 Intensifier will bring back the dual function of the bike providing both run and turn signal lights with our LEDs.
After installing your LED turn signals my flasher on my dash blinks faster. Is something wrong?
Your BCM is informing you that the circuit load has changed and the BCM thinks it's due to a bad bulb not the new LED lights so it makes your indicators flash faster than normal. It's called hyper-flash. Try this first.
  1. Turn on ignition switch and then run switch.
  2. Turn on your emergency flashers then turn off ignition switch.
  3. Run your emergency flashers for several minutes.
  4. Turn on ignition switch again.
  5. Turn off flashers and then bike ignition.
  6. Repeat steps 1-5 and then test for DTC codes or hyper-flashing. If the hyper-flash continues then you may need to install a load balancer if the hyper-flash
    is not to your liking.
Can I install your led turn signals on other models or manufacturers of bikes?
Yes, that is what customizing is all about. It is the installers responsibility to know how the bike circuits operate to ensure proper wiring. Not all bikes operate the same with the newer BCM/Can Bus controlled bikes.
How do I tell which shock I have and what lowering kit part number do I need?
I only have rear turn signals and no taillight. How should I wire my new LED's?
We recommend wiring according to Tech-Tip "M8 Rear Install Kit KUS11500 to LED Lights". KUS11500 provides all new connectors, wires, and load balancer for a trouble free install.
My Kodlin rear turn signal has four wires, but my bike only has three, what do I do?
We recommend wiring according to Tech-Tip "M8 Rear Install Kit KUS11500 to LED Lights". KUS11500 provides all new connectors, wires, and load balancer for a trouble free install.


*other models may vary

Pin position 1, Blue = Running light (open on some models)

Pin position 2, Violet = Turn Signal

Pin position 3, Open

Pin position 4, Black = Ground

Pin position 1, Blue = Running light to LED yellow wire

Pin position 2, Violet = Turn Signal to LED brown wire

Pin position 3, Blue/Red = Brake light to LED red wire

Pin position 4, Black = Ground to LED black wire

Wire extensions may be needed to fill pin position 1 and 3 depending on your model of bike


YELLOW = Running Lights

BROWN = Turn Signal

RED = Brake

BLACK = Ground

On all models that only have stock turn signals functioning as run/turn/brake
lights you must have your BCM taillight configuration set to "Dedicated taillight".
This is typically done at Harley dealership or shop with that capability.
This will stop brake signal voltage from going to pin 2 and causing an amber
LED brake light. Brake signal will now only go through pin 3 for proper red
LED brake light.

Tech Tips

Tech Tips

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