Enkei Wheels Helix 18" 5x114.3 Gloss Gunmetal
SKU: 68822818221

Enkei Wheels Helix 18" 5x114.3 Gloss Gunmetal

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Enkei Wheels Helix 18" 5x114.3 Gloss GunmetalALUMINUM EXPLAINED: PRODUCTION METHODS WILL NOT AFFECT STIFFNESS How can we increase the stiffness of wheels? As long as wheels are made of aluminum alloy, using a different production method does not affect the stiffness of the wheel. Thats because all aluminum alloys used for forging and casting create same material property with identical stiffness. You may think forging process creates stronger materials. However, when forged and cast aluminum

ALUMINUM EXPLAINED: PRODUCTION METHODS WILL NOT AFFECT STIFFNESS
How can we increase the stiffness of wheels? As long as wheels are made of aluminum alloy, using a different production method does not affect the stiffness of the wheel. That’s because all aluminum alloys used for forging and casting create same material property with identical stiffness.

You may think forging process creates stronger materials. However, when forged and cast aluminum alloys are measured by the Young’s modulus, it shows almost no difference between two methods. Forged and casted aluminum alloys are nearly identical in specific gravity as well. Therefore, if you make an exact same shape of wheels using forging and casting method, the weight of those wheels should be the same. What is the advantage of the forging process, then? It is an ability to produce higher material strength.

Generally speaking, compared with casting, forged material is superior in yield strength and tensile strength. However, no matter how great the material strength, it cannot justify an extreme reduction in weight.

Even with adequate material strength, if wheels lack stiffness, they cannot perform properly even with high-performance tires.

Durville Die Casting & MAT Process
Enkei has adopted two technologies – the Durville die casting and MAT process that ensure cast aluminum wheels have strength comparable to forged ones. In the Durville process, molten aluminum alloy is poured into the mold from its inner rim side, with the disc side facing downward. The alloy is rapidly quenched and solidifies, starting at the disc side, creating a finer metallic structure, significantly enhancing tensile strength, yield strength and elongation.

In the MAT process, the wheel rim placed on a mandrel is spun and rolled. This spinning process creates “metal flow” in the metal structure of the aluminum alloy, which is similar to the metal property seen in the forging process.

This hybrid process of casting and forging gives wheel high material strength while keep manufacturing cost more affordable than forged wheels. Additionally, it gives greater freedom of design on the wheel face.

Design Capability behind the best wheels

How does Enkei ensure its wheels have high stiffness? The answer is Enkei’s “Design Capability”.

To maintain high stiffness under great force, the wheel’s cross sectional area in the direction against the force applied needs to be enlarged. Unfortunately, the larger this area is, the heavier the wheel will get. However, if the layout, cross sectional shape of the spokes and the rim profile are designed properly, the wheel can maintain high stiffness without
adding weight.

The layout is made possible by Enkei’s vast accumulation of wheel design data and the computer aided engineering 3D simulation. In addition, Enkei strives for the largest possible weight reduction by identifying the wheel portions where stress concentration is least likely to occur and shaving down areas that do not affect stiffness.

Enkei’s processing techniques ensure the “strength” of its wheels, and its excellent design capability ensures “stiffness” and “lightness.” Enkei’s design capability is the most-treasured asset and essential for developing the highest performance wheels.

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SKU: 68822818221

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Constant Reader
Louisville, US
★★★★★ 3
Bit of a snore
Format: Kindle
Mordecai Tremaine is a retired tobacconist and an amateur detective. He is invited to spend Christmas with an acquaintance in a country manor house who specifically tempts Mordecai Tremaine by hinting at a threat. This story has a period feel to it with servants, snow, secrets, and murder. The pacing is laborious. I hoped that the pace would improve when a murdered person in a Father Christmas suit is found on the floor in front of the Christmas tree. Alas, it was not to be. The character list is very long, and the characters are not well developed. This is the first book in a series featuring Mordecai Tremaine (who is only referred to by last and first names). I have a soft spot for British mysteries, including period British mysteries like those by Ngaio Marsh. While the mystery has its twists and turns as Mordecai Tremaine investigates to assist the police, it never quite clicked for me. I am not likely to read any of the other books in the series.
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Reviewed in the United States on December 6, 2018
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Grandma
Birmingham, US
★★★★★ 5
Enjoyable Classic mystery
Format: Kindle
I am an avid fan of vintage mysteries, and “English country house” mysteries are among my very favorites in that genre. I enjoyed this one very much and was pleased to see that there were two others available and a couple more being published. This book was my idea of a terrific cozy type mystery, and I enjoyed it very much. The Christmas setting added to its appeal. Mordecai Tremayne, the detective in this story is just eccentric enough to be interesting without being stereotyped. He observes people, and makes deductions based on these observations, along with his knowledge of human nature. In retrospect, he is almost a bit like male version of Miss Marple, although this did not strike me as a I read the book. This was a fun book to while away a few hours, and I look forward to reading others in this series. Highly recommended for fans of vintage mysteries, and cozies.
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Reviewed in the United States on August 17, 2018
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smithirowa
Lowell, US
★★★★★ 4
Leaves You Wanting More
I read about this novel right after Christmas, but I decided to order it anyway. It was not supposed to arrive until some time in February, so I was pleasantly surprised when I received it within a few days of my order. With the snow finally falling in the Chicago area, I knew this would be a good time to read this book. The book begins with a summary of the case with somewhat overwrought language. However, as it moves on to the characters, it becomes more successful. It is important to remember that the novel was written in the 1940s, which means that we have a world that is slower paced than the 21st century. Of course we are looking at a wealthier segment of society in rural England, but this pace allows us to study the scenery and the characters more carefully. This is a world with a mansion that can house a number of guests for Christmas with these guests being able to stay over a few days with a pleasant host. The characters are mostly forgettable with the major exception of Mordecai Tremaine as the amateur detective who helps solve the case. He is a character who is unforgettable. The ending is well plotted, and it leaves the taste of a delicious Christmas dinner in the mouth of the reader. The author, Francis Duncan, wrote in the 1930s and 1940s, and this is the first book of his to be republished. I can only hope that other books by this author will be republished as well and republished soon or at least in time for me to read them by next Christmas. Without knowing anything about his other books, it would be nice to think that I could have other seasonal stories waiting for me in the future. The ending still remains in my mind, even several weeks after I have read the book. It would be delicious to meet Mordecai Tremaine again.
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Reviewed in the United States on January 26, 2016
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Izybella
Fort Morgan, US
★★★★★ 5
I read it and LOVE it!!
Format: Paperback
I actually read this book for December 2021 and it was the perfect murder mystery book that takes place during the wintertime! If you like the style of writing from Sherlock Holmes or Agatha Christie then you will love this book! Also, you don't have to worry about reading certain books before this one because the series has its own separate story for each book! I loved the story so much that I immediate order another book from the series!!
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Reviewed in the United States on December 26, 2021
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Carol Mello
Dallas, US
★★★★★ 3
Not as good as "Murder has a motive"
Format: Kindle
Actually, if one looks at the original copyrights of this book and "Murder has a motive" , it is clear this is the second book, not the first. In addition, the notoriety Mordecai Tremaine gained from the Dalmering case is mentioned in the text of this book. This book moves much more slowly than " Murder has a motive" and the secrets of the suspects are harder to figure out. I did notice the murderer's slip up during the murder discovery scene. The book ends abruptly and another character who is a psychopath apparently is going to get away without punishment of his despicable behavior that has been going on for a very long time. The plot is original in nature which is a plus. Because of the plot slowness (I trudged onward to the end) and the lack of justice for the psychopathic character, I had to remove a star for each.
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Reviewed in the United States on March 23, 2021

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