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    Installing 12" Handlebars On A Harley Davidson (2022 Street Glide Special)

    June 24, 2022 by Ride It Wrench It Leave a Comment

    Can You Install Handlebars Yourself

    This is a question everyone will have to answer for themselves. There is a lot involved in the process. There are a lot of tools you will need as well. You have to consider your aptitude for mechanical work. You might want to read this article before you begin. It will help with your decision. Motorcycle Maintenance Level Limitations

    Parts Used For This Install

    Paul Yaffe's Bagger Nation MBB125-12
    Avon Grips
    Control Wire Extensions
    Fatbagger 4-Inch Clutch Line Extension
    Mason Line
    Wheel Bearing Grease

    Articles Related To Handlebar Installation With Videos

    Installing 12" Paul Yaffee Handlebars On A Harley Davidson (2012 Street Glide)
    Installing 10" Paul Yaffee Handlebars On A Harley Davidson (2015 Street Glide Special)
    Prepping And Wiring Motorcycle Handlebars
    Adjusting Handlebars On Harley Davidson Touring Models
    Reasons To Replace Motorcycle Mirrors
    Mirror Plugs On A Harley Davidson Touring Motorcycle

    Recruit Help

    You might want to recruit some help with the handlebar install. Although you can do it solo, another set of hands sometimes helps. Extra help can help prevent damage to the motorcycle by holding parts while you work on them.

    The Difficult Part

    The most difficult part of a handlebar install is the wiring. It can be a challenge to get the wires through the handlebars. Some techniques can help with this. I included a video of how to prepare and wire handlebars at the end of this article. The year of the motorcycle can also make it more difficult. Any Harley 2014 and earlier has an enormous amount of wiring that has to go through the handlebars. In 2014 Harley moved to a CanBus System on their touring motorcycles, which greatly reduced the bulk of the wiring. This made it much easier.

    The control wiring on 2013 and earlier models had a large Molex connector. You must unpin the connector to get the wires through the handlebar. Then you will have to rebuild the connector once they are through. Make a wiring diagram or take pictures of the pinout before disassembly. Later models have a smaller connector that can be pulled through the handlebar without disassembly. Below is a picture of a control wire extension kit for Harley touring models from 2007-2013.

    2007-2013 Control Wire Extension Kit for Harley Davidson Touring Motorcycles

    Handlebar Control Wiring Extensions

    Any handlebar 12" and higher will require control wire extensions. You can put 10" handlebars on most models without extending the wiring. Again, 2013 and below will require a lot more work. The best way to extend the wires is to purchase a wire harness extension kit. Then cut the stock harness in half and solder each wire extension to increase the length. Stagger your cuts so you don't have a big bulge in the middle. That would make it near impossible to pull the wires through the handlebar. Use heat shrink tubing for every wire soldered.

    2014 and later models have far less wiring to deal with. For these years, you can purchase a plug-and-play wire harness extension. This makes it very easy to extend the control wiring. They work well for 12" bars or shorter. Anything over 12" will be difficult. The stock harness is not long enough to exit the bottom of the bars to install the extension. You will either have to cut the extension and solder it or plug it in and pull it through. Pulling the wires through after connecting the extension could damage the junction. It could pull the wiring out of the connector.

    2014-2022 Control Wiring Extension for Harley Davidson Touring Motorcycles

    Twist Grip Sensor

    The TGS can be problematic. If you pull on the wiring too hard, it can pull out of the TGS. You may not even know it happened until you put everything back together. You might finish and get a bunch of error codes or roll on the throttle and get no response. When the leading edge of the TGS gets to the tubing of the handlebar you need to be very careful. At that point, you will push it into the handlebar. You will then lightly pull the wiring as you push it in. This will prevent damage to the TGS. The year of the motorcycle can cause difficulties with this because of the amount of wiring between the control wires and the TGS.

    2013 and below models have a huge amount of wiring on the TGS. Combine this with a large number of control wires, and it is extremely difficult. You may have to remove all harness jacketing to get the wiring through. 2014 to 2020 had a smaller plug on the TGS. Even though it was small, you still had to unpin the connector to get the wiring through. Then you must rebuild the connector once the wires are through the handlebars. The TGS on the 2021 and later models have a small connector that you can pull through the handlebars without disassembly.

    TGS Wire Length

    I have never had to extend the TGS wire length. They will usually be long enough for up to 16" handlebars. For 2014 and above years, you can purchase a plug-and-play extension if necessary. I would far rather use that instead of soldering if possible.

    Riser Bushings

    Many say you must replace the riser bushings with polyurethane for higher handlebars. I don't necessarily subscribe to that theory. I had 12" on my 2012 FLHX with stock bushings and had no issues. On my 2015, I used polyurethane riser bushings with 10" bars and ended up breaking the lower handlebar clamp one day while moving the bike around the garage. I think the poly bushing doesn't give when force is applied. When that happens, the weakest point will break. That was the lower handlebar clamp. Rubber bushings will give a bit to help deaden the force through the bars and handlebar clamp.

    How you ride will also dictate if you need poly bushings or not. If you have to move the handlebars a lot, it might be a good idea to replace the stock bushings. The rubber ones might not hold up to a lot of handlebar action. Taller handlebars will also create a lot more stress on stock bushings. This will cause them to blow out faster. I saw many bikes while working at Harley with 14" and taller bars that blew out the stock riser bushings. I never saw an issue with 12" or lower bars with stock bushings. This is something you will have to ascertain for yourself.

    Brake Line Extensions

    Most Harley touring models have enough extra brake line length to install 12" and below handlebars. If you must extend them and have a motorcycle with ABS, some issues can occur. If air gets into that ABS module, you must take it to a dealership. They will bleed the ABS module using digital technician II software. If you are very careful, you can sometimes remove the upper brake line from the ABS module. Then install the new brake line and bleed from the front calipers up to the master cylinder. This will push air out through the master cylinder, so it doesn't get sucked into the ABS module.

    Clutch Line Extension

    On this install, I extended the clutch line with a 4" fatbagger extension. You can get away with the stock clutch cable up to 12" handlebars. It will be tight, though. I would rather have the cable lay naturally than stretch it to fit. If you put 14" handlebars or higher, you will need to extend the clutch cable.

    Ride Strong Wrench Proud

    « Prepping And Wiring Motorcycle Handlebars
    Adjusting Handlebars On Harley Davidson Touring Models »

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