
In 1998, German author Bernt Spiegel wrote a best-selling book called The Upper Half of the Motorcycle. Originally written in German with multiple editions and printings to its credit, it was so popular that it was translated into English in order to make its message available to a wider audience.

Spiegel presented a metaphor that a motorcycle and its rider are a single unit, and the rider is the upper half of that unit. He then used elements of anthropology, psychology, biology, physics, and other disciplines to analyze the theory and function of the motorcycle/rider single unit.
Operating a motorcycle is a junction where people become so adept at riding that the machine becomes an extension of themselves. Therefore, the ultimate goal for motorcycle racers is the complete integration of the human/machine interface and subsequent skill development to the point of absolute perfection.
When riding a motorcycle at speeds greater than about 15 miles per hour, leaning the motorcycle over in the direction of the turn is a critical maneuver. But, if the very act of turning a motorcycle by leaning it over is so simple, why do we have a natural tendency to resist leaning?
According to Spiegel’s book, throughout human beings’ two-legged existence, we have developed an internal mechanism that allows us to lean a motorcycle over, but only up to a certain point. That point, Spiegel claims, is found throughout nature, and it is 20 degrees of lean. Whether it’s a baseball player running around the bases; a football running back or basketball point guard making a quick cut towards the goal; a cyclist swiftly turning a corner; or a polo player, jockey, or rodeo barrel racer rounding a barrel, the angle of lean is always right around 20 degrees.

For motorcycle road racers, however, the angle of lean is much greater than 20 degrees. In fact, MotoGP bikes–which have the most ground clearance and use tires with the most grip on the world’s smoothest racetracks–produce 65 degrees of lean angle. That’s a full 45 degrees of additional lean beyond the 20 degrees at which human beings are comfortable leaning in turns.
So, why is maximum lean angle important in motorcycle road racing? The answer is simple: it unlocks maximum speed potential. The farther you can lean a road racing motorcycle over, the higher the corner speed you can achieve. And, in a general sense, the higher your corner speed, the faster your lap times.
But even MotoGP racers don’t ride around corners at the exact same lean angle every time, with their bikes’ hard parts always the same precise distance from the track’s surface. As their speeds change from corner to corner, and depending on whatever situation they’re in, so will their lean angle.

One thing that’s universal, whether it’s MotoGP, World Superbike, or our own MotoAmerica road racers competing in the Mini Cup by Motul or SportbikeTrackGear.com Junior Cup, Twins Cup or Supersport, Stock 1000 or HONOS Superbike, or even the Mission King Of The Baggers Championship, lean angle is the key to winning, and it’s all a matter of degrees.
To purchase tickets for all MotoAmerica events, click HERE
For information on how to watch the MotoAmerica Series, click HERE
For the full 2022 MotoAmerica Series schedule, click HERE

Hey there! I’m at work browsing your blog from my new iphone
3gs! Just wanted to say I love reading your blog and
look forward to all your posts! Carry on the great work!
Hi there, I enjoy reading all of your post. I wanted to
write a little comment to support you.
This blog was… how do you say it? Relevant!!
Finally I’ve found something which helped me. Cheers!
Very nice post. I just stumbled upon your blog and wished to say that I have really enjoyed browsing your blog posts. After all I will be subscribing to your rss feed and I hope you write again soon!
This is a topic which is near to my heart… Thank you! Where
are your contact details though?
Every Dream11 user needs these financial guardrails — deposit limits that actually work.
The cricket knowledge you already have — now channel it correctly into Dream11 selections.
Hi, Neat post. There is an issue together with your web site
in web explorer, might check this? IE nonetheless is the market chief and a
big element of other people will pass over your excellent writing because of this problem.
hello there and thank you for your information – I have
certainly picked up something new from right here. I did however expertise several
technical points using this website, since I experienced to reload
the web site lots of times previous to I could get it to load correctly.
I had been wondering if your hosting is OK? Not that I am complaining, but slow loading instances times will
often affect your placement in google and can damage your high quality score if ads and marketing with Adwords.
Well I’m adding this RSS to my email and could look out for
a lot more of your respective fascinating content.
Ensure that you update this again very soon.
I love your blog.. very nice colors & theme. Did you make this website yourself or did you hire someone to do
it for you? Plz answer back as I’m looking to design my own blog and would like
to know where u got this from. thank you
I like this site because so much utile stuff on here :D.
Have you ever thought about including a little bit more
than just your articles? I mean, what you say is fundamental and all.
But just imagine if you added some great graphics or videos
to give your posts more, “pop”! Your content is excellent but with images and video clips, this
blog could certainly be one of the very best in its field.
Very good blog!
trumpkennedycenter.org has Free Business Funding and it’s easy, cheap and fake
It is actually a nice and helpful piece of information. I’m satisfied that you shared this useful info
with us. Please stay us informed like this. Thank you for sharing.
We stumbled over here by a different website and
thought I might check things out. I like what I see so now i’m following you.
Look forward to going over your web page repeatedly.
Hurrah! At last I got a webpage from where I be capable of genuinely get valuable
facts concerning my study and knowledge.
The captain who scores big in matches where the opposition’s star bowler is injured or rested.
You can certainly see your enthusiasm in the work you write. The world hopes for more passionate writers like you who are not afraid to say how they believe. Always follow your heart.
It is the best time to make some plans for the future and it’s time to be happy.
I have read this post and if I could I want to suggest you
some interesting things or advice. Perhaps you could write next articles referring to this article.
I desire to read even more things about it!