Custom CF rear (longer) hugger - Ducati Supersport 939 Forum
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post #1 of 11 (permalink) Old 03-16-2019, 03:27 AM Thread Starter
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Custom CF rear (longer) hugger

I'm working with a local carbon fiber shop to design and produce as functional as possible rear fender for wet conditions. This will be plug and play. I don't expect/ keep my hopes high that this will be the comprehensive end all to the rooster tail but I'd like to have something that will decrease it significantly if only something certainly better than the existing OEM/ aftermarket short fenders. I bought the 939SS for it's multi-functionality, daily commuter, distance tourer, and occasional track days. For the first two purposes only short sport fenders exist which does diddly squat with wet roads.

We are in the final design phase prior to plug making and then first prototype. The fender shown here does flare out a bit at the edges if you can't quite tell. I was aiming for the rear hugger shown in the last photo. If anyone knows of a video of a bike riding through rain which captures rain spray from the side, please let me know. I can't find one! I acknowledge I'm working on this somewhat blindly, trying to maximize rear wheel coverage. Another detail, there will be a one inch clearance at the apex of the tire to hugger. I'm aiming more for function than form.

Feel free to pan it, like it, but I'd appreciate any technical advice.
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post #2 of 11 (permalink) Old 03-16-2019, 09:04 AM
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Very interesting. I think there will be several following this thread with enthusiasm. Please, keep us posted on the progress.

~David~

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post #3 of 11 (permalink) Old 03-16-2019, 09:32 AM
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I like this idea.
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post #4 of 11 (permalink) Old 03-19-2019, 07:40 PM
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Looks good to me. Certainly a useful mod!
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post #5 of 11 (permalink) Old 04-10-2019, 09:19 AM
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I can't provide any technical advice, but I agree with the other responses that this looks very promising.


I know it might be heresy among the Ducati acolytes, but I would not have a problem if this was made of a quality plastic, as compared to carbon fiber, to keep cost down.


Looks great and well thought out!
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post #6 of 11 (permalink) Old 05-01-2019, 11:52 PM
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Quote:
Originally Posted by sunstar557 View Post
We are in the final design phase prior to plug making and then first prototype. The fender shown here does flare out a bit at the edges if you can't quite tell. I was aiming for the rear hugger shown in the last photo. If anyone knows of a video of a bike riding through rain which captures rain spray from the side, please let me know. I can't find one! I acknowledge I'm working on this somewhat blindly, trying to maximize rear wheel coverage. Another detail, there will be a one inch clearance at the apex of the tire to hugger. I'm aiming more for function than form.

Feel free to pan it, like it, but I'd appreciate any technical advice.



Hi,
please remember that the right side of the hugger should be open to be able to remove the wheel
Michael

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post #7 of 11 (permalink) Old 05-14-2019, 04:13 PM
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Hi Sunstar! Greetings from a fellow Seattle based SSS rider! I'm very interested to know how this is coming along as I'm really inclined to join in on your efforts!
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post #8 of 11 (permalink) Old 08-02-2019, 06:12 PM
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Also interested. Huggers currently made for the 900 SS look similar to those posted above.

Mike

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post #9 of 11 (permalink) Old 08-03-2019, 01:30 AM Thread Starter
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Quote:
Originally Posted by Paddlefoot64 View Post
Also interested. Huggers currently made for the 900 SS look similar to those posted above.
That was the idea. We inkjetted a demo model which I shared on Facebook and received a lot of negative comments. People didn't like the concept of the 900 SS look which I felt it would maximize the rain spray, striving for function over form (I actually like the 900 SS look). So back to the drawing board and now in process of merely a longer fender with sides cut away from the original. I am waiting for the inkjet printing of this second version.

In the end, I think that the best solution is to develop a mud guard like those which come standard on the Multistrada and other models, even Scrambler. I've started on having one built too.

I've piled on miles this Spring and Summer with some long trips and gone through some wet days. The water rooster tail is ridiculous and I bought this bike for its multifunctionality (there aren't many of us who can keep a stable of bikes for different purposes/ some of us do ride year-round as a daily driver).

Mind you the final products either single or together will not be cheap (carbon fiber) and perhaps not even 100% water shedding but it should afford some to a lot of water spray (improvement) than what we have now.

It's been a long process but continues to move slowly forward.

Last edited by sunstar557; 08-03-2019 at 01:33 AM.
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post #10 of 11 (permalink) Old 08-03-2019, 05:20 AM
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A modified bracket could mount this to the swingarm. Found in aliexpress.com
Bracket and self tappers should do it.
I live in a dry climate so haven't given it much thought but there are a few living in wet climates and need a solution.
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