Thursday, December 25, 2008

"Power Lines"

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Erik Buell has been talking about the benefits of torque for over 25 years. The above graph is from the Buell website. Click on the picture to get a closer look at the flatness of the new Helicon engine's torque curve. This powerband is 80 ft. lbs. of torque for over 4000 rpm, starting as low 4800 rpm. (maximum torque is 82 ft/lbs.) Impressive.


What kind of road do you get the most fun out of your riding and at what engine speed?


Now look at the torque curves of the 2008 liter, in-line 4 superbikes from Honda, Kawasaki, Suzuki, and Yamaha (courtesy of
Sport Rider magazine).....



On the street or on the track, a linear power band helps the rider hone his/her craft.


Buell has a killer looking fully-faired carbon fiber racebike available. Please make this fully faired version available for the street with a cooler set of lights than the current array. (The fairing does not have to be carbon fiber, either).




Thursday, December 18, 2008

Animal Fever

"my kind of woman"


Wednesday, December 17, 2008

Twinline Motorcycles

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One of the biggest hits of the 2008 International Motorcycle in Seattle came from a little 2-stroke from a local shop. Behold the "Twinline" Yamaha RD350....





A powerband like a 2-minute punk song is the only fix you need at times



The exhaust expansion chambers were unreal in both the shape and metal work.


Monday, December 01, 2008

Transverse, longitudinal crank V-twins

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A comment posted by "Den" after the The Kneeslider article I wrote about the Eller Industries' sportbike design, pointed to intriguing history about the transverse motorcycle engine. (Also see here). Den's mate, Murray Barnard from MC News in Australia, wrote a brief article about the Indian 841, which had its jugs in the breeze. Is the Eller design an interesting coincidence or proper homage to this earlier classic[??]. See Murray's article here

The Indian Motocycle Manufacturing Company of Springfield, MA appears to be the 1st manufacturer to produce a motorcycle with this engine orientation. Their example had a 750cc,90-degree v-twin.
Indian has an amazing history that is definitely captivating in its triumphs and heartaches.


good for cooling and protecting legs from forward gunfire


See more information here

The next motorcycle to hold its engine in this logical and handsome manner was the
Victoria Bergmeister of 1954



I have not seen many "cleaner-looking" designs than the above motorcycle. Remarkables include: the shape & fit of the fenders, the engine block, cylinders, headers, clever horn placement.


Other notable relic: The 1932 French-made "Dollar V-4"....sadly, this beauty never made it to production.

(narrow angle v4?....see bottom of this post)



Guzzi started producing their twin in the 1960's. This is my 2002 example...




New twist of the throttle: add liquid-cooling + 2 additional cylinders "facing" the other set.....Best of luck to the Moto Czysz crew

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