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post #1 of 24 (permalink) Old 08-02-2019, 06:30 PM Thread Starter
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Help installing Mid-Frame Air Deflectors

I just got AdvanBlack Mid-frame Air Deflectors. They don't come with instructions but the hardware looks similar to what comes with Harley's Mid-Frame Air Deflector part #57200157. I had a different problem on each side. On the left side, you are supposed to install a "Speed nut" but the hole the speed nut is supposed to go over is already threaded. The bolt that Advan sent doesn't fit the threaded hole.

On the right side, the hole the speed nut goes over isn't threaded but the location makes it impossible to thread the bolt because the engine in in the way.

Has anyone installed Mid frame deflectors on a 17 or later model? Any suggestions? I have a 17 RGS.

Pic 2 shows the threaded hole on the left side.

Pic 3 is of the speed nuts.

Pic 4 is of the lower "special nut" as HD calls it. It seems like you stick it in a hex shaped hole and it doesn't do anything except maybe hold it is position. Thanks
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2017 RGS Hard Candy Hot Rod Red Flake

Last edited by geo8866; 08-02-2019 at 06:33 PM.
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post #2 of 24 (permalink) Old 08-02-2019, 07:12 PM
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Just installed my Hog workz version earlier today. If you already have threaded holes which the Special models all have I believe,then youíre good and donít need that extra hardware. My Fltrx didnít and I had to use them. The upper right side is a pain in the neck and many have complained about it. Not much room between and cylinder head very close. Not sure how long your screws are but if too long,may have to cut it down slightly. I played with mine for a long while to get the right angle of screw and for it to catch with hardly any room but finally got it lol.Those Special nuts are supposed to work almost like an anchor,as you screw into it the tube swells up a bit and meant to hold in place with friction but I didnít like it or trust since it still felt like it could pop out. That happened to several I heard. Instead try inserting it on opposite side and is much better and feels secure and tight. Poor design on the hardware imo. When you do it that way, right side is fine with plenty room but left side I had to loosen the fuse box to get to the backside of frame. Hope that helps and good luck with it!


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post #3 of 24 (permalink) Old 08-02-2019, 08:00 PM
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Originally Posted by Desert Rider AZ View Post
Just installed my Hog workz version earlier today. If you already have threaded holes which the Special models all have I believe,then youíre good and donít need that extra hardware. My Fltrx didnít and I had to use them. The upper right side is a pain in the neck and many have complained about it. Not much room between and cylinder head very close. Not sure how long your screws are but if too long,may have to cut it down slightly. I played with mine for a long while to get the right angle of screw and for it to catch with hardly any room but finally got it lol.Those Special nuts are supposed to work almost like an anchor,as you screw into it the tube swells up a bit and meant to hold in place with friction but I didnít like it or trust since it still felt like it could pop out. That happened to several I heard. Instead try inserting it on opposite side and is much better and feels secure and tight. Poor design on the hardware imo. When you do it that way, right side is fine with plenty room but left side I had to loosen the fuse box to get to the backside of frame. Hope that helps and good luck with it!
Great detailed explanation desert rider az


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post #4 of 24 (permalink) Old 08-02-2019, 08:06 PM
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Great detailed explanation desert rider az
Thanks! Funny how we were doing same exact installation on very same day lol
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post #5 of 24 (permalink) Old 08-03-2019, 05:26 AM Thread Starter
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Originally Posted by Desert Rider AZ View Post
Just installed my Hog workz version earlier today. If you already have threaded holes which the Special models all have I believe,then you’re good and don’t need that extra hardware. My Fltrx didn’t and I had to use them. The upper right side is a pain in the neck and many have complained about it. Not much room between and cylinder head very close. Not sure how long your screws are but if too long,may have to cut it down slightly. I played with mine for a long while to get the right angle of screw and for it to catch with hardly any room but finally got it lol.Those Special nuts are supposed to work almost like an anchor,as you screw into it the tube swells up a bit and meant to hold in place with friction but I didn’t like it or trust since it still felt like it could pop out. That happened to several I heard. Instead try inserting it on opposite side and is much better and feels secure and tight. Poor design on the hardware imo. When you do it that way, right side is fine with plenty room but left side I had to loosen the fuse box to get to the backside of frame. Hope that helps and good luck with it!
Thanks for the detailed instructions. I'm always concerned "it's me" and not the part. I think because its aftermarket, the hardware sucks. I'm going to see if i can buy OEM hardware and give it a shot again.

BTW I am impressed with Advanblack's color match. I have a Hard Candy color and the paint is perfect.
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post #6 of 24 (permalink) Old 08-03-2019, 01:19 PM
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Thanks for the detailed instructions. I'm always concerned "it's me" and not the part. I think because its aftermarket, the hardware sucks. I'm going to see if i can buy OEM hardware and give it a shot again.

BTW I am impressed with Advanblack's color match. I have a Hard Candy color and the paint is perfect.
Anytime! Seems like lots of of folks were having some problems. I read about one guy who gave up and brought it to the dealer lol. It’s not that bad, just a very tight fit some some spots. My issue was the special nuts on bottom and may try Harleys hardware instead. The paint on yours looks great looking at your pics. I have black denim and looks good and matches well too
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post #7 of 24 (permalink) Old 08-03-2019, 01:49 PM
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i just got done doing this today. the special nuts on the bottom are not an issue for me, they just press in and hold pretty securely. it isn't like you're trying to compress two case halves together....

the left side is a piece of cake. the top hole is already threaded on the frame so no need for speed nuts or anything.

the right side is pretty tight against the cylinder head. i bought aftermarket heat deflectors off of amazon and the bolts that came with may have been longer than the hd ones. i did buy the speed nuts and special nuts from hd though. to get that top bolt to fit, i cut off about 1/4'' so that i could get the threads started by hand.

to make the job easier, a flex head ratcheting wrench works pretty good and is what i used. i think that one of those finger tip ratchets would work even better but i don't have one of those, so can't say for sure.

now to find out, do these things even work?
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post #8 of 24 (permalink) Old 08-03-2019, 02:02 PM
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i just got done doing this today. the special nuts on the bottom are not an issue for me, they just press in and hold pretty securely. it isn't like you're trying to compress two case halves together....

the left side is a piece of cake. the top hole is already threaded on the frame so no need for speed nuts or anything.

the right side is pretty tight against the cylinder head. i bought aftermarket heat deflectors off of amazon and the bolts that came with may have been longer than the hd ones. i did buy the speed nuts and special nuts from hd though. to get that top bolt to fit, i cut off about 1/4'' so that i could get the threads started by hand.

to make the job easier, a flex head ratcheting wrench works pretty good and is what i used. i think that one of those finger tip ratchets would work even better but i don't have one of those, so can't say for sure.

now to find out, do these things even work?
I have the Fltrx model and they donít come with threaded holes, which is not a big deal since those speed nuts work well and do the job. Was just a bit tight on the top right side and after several attempts was able to screw it in. Maybe the special nuts I got were defective since they werenít holding right and read online that many had issues with those. Iím sure these air deflectors will help with heat quite a bit


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post #9 of 24 (permalink) Old 08-04-2019, 08:39 AM Thread Starter
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Originally Posted by skratch View Post
i just got done doing this today. the special nuts on the bottom are not an issue for me, they just press in and hold pretty securely. it isn't like you're trying to compress two case halves together....

the left side is a piece of cake. the top hole is already threaded on the frame so no need for speed nuts or anything.

the right side is pretty tight against the cylinder head. i bought aftermarket heat deflectors off of amazon and the bolts that came with may have been longer than the hd ones. i did buy the speed nuts and special nuts from hd though. to get that top bolt to fit, i cut off about 1/4'' so that i could get the threads started by hand.

to make the job easier, a flex head ratcheting wrench works pretty good and is what i used. i think that one of those finger tip ratchets would work even better but i don't have one of those, so can't say for sure.

now to find out, do these things even work?
I'm glad you said your left side was thread and the right side wasn't. I thought they screwed up on my bike. Why the hell did they thread one side and not the other?

Thanks for the advice on the install. The dealer didn't have the OEM bolts in stock so i'm waiting for them to come in to do the install.

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post #10 of 24 (permalink) Old 08-04-2019, 12:03 PM
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both sides are threaded. its just on the one side, the threaded hole is in a different spot.

i assume when you say 'oem bolts' you are referring to all the hardware, including the speed nut and special nut? i suggest going to the hardware store and getting a shorter mount bolt for the top right hand side. the full length bolt is a bitch to get started. i used a hacksaw and cut about 1/4'' off and it was much easier.
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