Sebastian Mahler MSME
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CBRoadster

The CBRoadster is intended to be a universal bolt-on kit that I designed to help increase the safety of riding a motorcycle while maintaining the feel of being in the open air and on the bike that you have grown acustomed to. The goal was to create something that would increase the likelyhood of staying on the bike during an out of control cornering situation. These situations are one of the many dangers that motorcycles present so I decided to do something about it.
To give you a back story of how this design came about I'll tell you how I accuired my first motorcycle. While in college I purchased a a CBR1000RR to serve as a fun and reliable mode of transportation. Being young and excited to own my first bike, I selected one that was not well matched for my experience but loads of fun and exceptionally dangerous. Needless to say I survived the learning curve of becoming a safe rider and fell lucky to be telling you the story today. 
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As most people are aware, the production motorcycles of today are far more powerful than many of the racing bikes of the recent past and suprisingly require no prior skills or training to purchase one. The CBR1000RR is no exception. This near track ready 172hp beast of a bike happend to be my first motorcycle, a bike that noone should consider as a beginner, but I was determined to own a bike that I'd never grow out of. I still own the bike but because of it was mainly designed to go fast, I rarely ride it anymore.

Below are two examples of why motorcycles are inherantly dangerous and unpredictable during high speed cornering, wet or dry. 
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The low-side motorcycle wreck occurs when a rider looses traction while cornering. This type of mistake is favorable but potentially dangerous when not on a race track and objects are in the path of the riders slide.
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The high-side is a much more dangerous way to wreck. This occurs when the rear tire looses traction for a split second, then regains traction when the bike is no longer pointing in the right direction. The rider and bike are thrown into the air This rider broke his collar bone and was sent to the hospital.


​After college I stopped riding as often due to the risk of injury but I didn't want to give is up so quickly. Determined to keep my bike and enjoy it more safely I decided to come up with a design that would allow me to do both. At the time Canam, a company famous for its snowmobile, had come out with the Spyder. The Spyder was a reverse three wheel type of motorcycle four-wheeler hybrid. The concept had been around for some time and was becoming more and more popular due to it's easy learning curve and cornering capability. I realized the potential to keep my motorcycle and enjoy it with less risk.

I was fortunate enough to get the opertunity to take the Can-Am Spyder on a test ride. The ride was fun but disappointing when I realized how easy it was to get the inside front tire off the ground while cornering too quickly. The low-side wreck was eliminated, but the more dangerous high-side was still possible if pushed too fast in a corner. 

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I started the design with a paper sketch of what I thought it should look like and scraps of hydraulic tubing. I bent the tubes with a hand crank bender, and verified their accuracy with my cell phone's gyro. Within a couple weeks I was I had something that resembled a frame.   
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