Harley Forty-Eight Modifications for Performance, Comfort and Style

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Harley Davidson Forty-Eight Modifications

As with any modifications to motorcycles, balancing aesthetics vs. performance vs. comfort always seems to be an uphill battle. That was the challenge when I started out on my Sportster Forty-Eight mods. Do I choose the look I want, or go for the performance that I know will give me the rush I desire? Or in the end do I choose practicality and comfort for those long hauls? In my mind there is a way to combine all three of these key factors, as long as you have patience! And of course, there are plenty of Sportster parts to choose from.

My personal preferences when modifying my machine are comfort and safety first. If I am comfortable then I am able to remain focused on the road and my surroundings, which results in a safer ride. Aesthetics and performance follow in that order. Of course I want my machine to run optimally, but I don’t need my Forty-Eight to be a racing machine so I would rather the style and look take precedence over the performance factor. I bought this bike to cruise and relax on, not race on a track, therefore any performance mods that I have done had a safety and aesthetic look involved, so it was a win-win in both areas.

Handlebar Modification

Harley Forty-Eight Handlebar Modification

For my handlebar mods I wanted a different look, but also comfort that I wasn’t getting from the stock bars. The slight lean created from the stock bars, coupled with the peg placement, made me feel like my hands and feet were out-stretched in front, while my center of gravity was on the seat. Since I’m 5’10″ this was not a comfortable feeling on those long rides. I decided to go with a set of Road 6 Customs 8″ rise bars with a downward angle on the handles themselves. End result? Slightly below shoulder length (think blood flow here) handlebars that took the stress off my wrists and shoulders by preventing that leaning forward position.

I also covered the aesthetics department with these bars by running the wiring internally, which is a standard of these bars. Lastly, the atrocious and frankly useless below the bars rear view mirrors that came factory were able to be used and mounted above these Road 6 Customs bars, therefore increasing my safety factory exponentially. I can now see behind me!

Exhaust Upgrade

Harley Forty-Eight Exhaust Upgrade

Exhaust. Ah, the coveted Harley sound, but I wanted different. My goals for this Sportster mod were quite simple.

1) I wanted to be heard by traffic surrounding me.

2) I did not want long pipes scraping the ground every time I hit the back country twisties.

3) I wanted a unique look that isn’t common for most Harleys.

The result? A 2-into-1 head pipe that lets out right below my right foot with a HUGE exhaust port. Did I achieve the loud factor? Yeah, that’s an understatement. Some may say too loud (e.g. tight-asses who should put their tennis shoes on and go sit at the country club), but I want those texting cagers to hear me since I know they aren’t paying attention to the road. I wrapped the exhaust with DEI tan exhaust wrap, and sprayed it with DEI finishing coat to seal and protect the wrap. I got the look I wanted with this exhaust, increased my safety by being loud, and coupled with the Power Commander V and Vision-5 Air Filter was able to tweak a fuel map that increased my fuel economy and performance from the factory setup.

Performance Upgrades

For the air filter (to replace that satellite dish of a stock air filter) I went with the Figure Machine Vision 5 Air Cleaner. There’s more breathing room for the bike to increase my performance, and the plexiglass window that allows you to see the throttle mechanism is a pretty sweet addition. This is a favorite for the kids at red lights in the back seat of their parent’s car. I point it out to them, give the throttle a quick blip, and their eyes light up!

The Dynojet Power Commander V was a necessity after doing the exhaust and air filter to re-map and tweak my fuel/air mixture ratios. After uploading the map for my bike it really is a noticeable upgrade, and the bike runs cooler and more efficiently. In the end this mod felt like more of a necessity, not a choice.

Aesthetics Upgrades

Harley Davidson Forty-Eight Modifications

The only purely aesthetic addition I made was a tank lift, coil and key relocation kit. With the bars I added I wanted the tank to sit just slightly higher than factory to give the bike a bigger feel and look. Additionally this opened up the front cylinder head and moved a bunch of wiring that gives a much cleaner look to the bike from the side view.

Lastly the white walls were a decision based on a screw in my rear tire 2400 miles in. I knew I was going to go with them when the time came to change my tires, but this addition was expedited by a few thousand miles!

With these mods I was able to tweak the look of my bike to my liking all while increasing comfort and safety factors by a large margin from the factory setup. With the passenger seat and passenger pegs I now feel comfortable riding two up compared to the factory setup. The only remaining question… is the girl on the back of my Sportster, or my modifications, going to be turning heads?

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13 COMMENTS

  1. Thank you, Bino! Appreciate the kind words. I love bikes so much its hard to not love working on them, and writing about them. Looking forward to many many more stories and adventures to share with the readers!

  2. I know this post is 6 months old but who makes the exhaust? It looks like a Twisted Choppers exhaust but the end looks slightly different.

  3. Dude, I bought your bike from the Alfa Romeo dealership in Frazer! Fell in love with the look of it. Once I took it for a ride, it was over. Cupid shot me. Twice. Everything is perfect. Pretty much what I would do to a stock 48. I used to have the iron 883, so this is a nice upgrade for me. Thanks for doing an amazing job with it! I’ll make sure to take care of her!

  4. Tony: Twisted Choppers

    Mike: I was there to look at it the day before you bought it, coincidentally. I was half-tempted to buy it back, but I decided if someone else bought it before I was truly ready then so be it! If you ever consider dropping it let me know, I may consider buying it. Then again, I don't know exactly what I want to ride next (dirt/street) so I am holding off. Good luck, ride safe, and If you ever have any questions just drop me a note!

    Cheers!

  5. Picked up the bike today and I must say, wow. Rode for about 3 hours. Left turn signal button gets stuck at times and a few of the wires were exposed under the tank. Nothing crazy. Bars are perfectly positioned, rides smooth and the sound is oh so satisfying. I fell in love with riding all over again. Well done Tyler, well freakin done.

  6. Mike,

    It's been almost 1 year to do week that I traded that bike in on my car. That being said, the bike has obviously sat for a while. The blinker and wires were never an issue I had, so Im sure its just a part of being moved around the shop/sitting for a year. If you have any questions or need/want any help working on the bike let me know, Im local and happy to help! Glad you love the bike and the ride — just wear your helmet/gear and be safe out there!

    Appreciate the compliments — I put a lot of hours into that bike in a short amount of time!

  7. I know this article is a bit dated but I wanted to give you props for the job you did! I’m currently in the market for a HD Sportster and will definitely be modifying it similar to yours! I just can’t believe you traded her in!!!

    • James — Thanks for the props! I’ve always had a knack for bikes and this was an image I wanted for a while. I regret getting rid of the bike almost daily, but in the long run it was the smarter decision to make. I will ride again one day! Keep your eye out for a used 48 if you want something you can really make unique. Good luck!

  8. I did not! That was the highest I could go without needing to re-do any wiring, which I wanted to stay away from for multiple reasons. I did, however, need to order a stainless steel brake line as the stock was not nearly long enough. I am sure GetLowered can help you out with all of those parts!

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