Design Engine
Training Classes/Tutorials for Designers, Engineers, & 3D Professionals


Google+

Product Reviews

October 25th, 2012

Cannondale’s CERV Bike Dynamically Adjusts to Changing Terrain

The curved drop handlebars long found on racing bicycles are pretty nifty, right? If you want to get down low to reduce your wind resistance you grab hold of the lower part, and if you’re climbing a hill and need to get a bit more weight and leverage on the crank you can shift your grip to the top bar. The Continuously Ergonomic Race Vehicle (CERV) concept bike takes things a step (or two) further with a design that dynamically adjusts the position of the handlebars based on the terrain being covered, all without changing the seat-to-crank height.

Developed into a working prototype by Ohio-based Priority Designs, the CERV is based on a concept from Cannondale that called for a design that allowed the handlebars to move up and down without altering the distance from the seat to the crank. The answer was a triangular frame with 100 mm (3.9 in) of travel up and down that moves in relation to the front end’s 85 mm (3.3 in) of travel forward and back.

When descending a hill, the CERV’s front end moves forward and down to give the rider a low profile, while climbing a hill it moves up and back for a more upright rider position – on flat ground, the handlebar position is somewhere in between. The movement of the front end meant that a traditional fork wouldn’t be possible, so the Priority Designs team opted for a single-sided swing arm, which removed the traditional front fork altogether.

However, you’ve probably noticed that the front fork is also handy for translating the steering movements of the handlebars to the front wheel on most bikes. With perfectly straight bike routes a rarity, Priority Designs built a mechanism that translates the steering movements from the handlebars to the front wheel through the bike’s frame. Similarly, the chainless bike translates the movement of the crank to the rear wheel via a transmission running through the shaft of the rear support arm.

The CERV concept bike was unveiled at the Eurobike exhibition in Germany at the end of last month. The chances of it appearing on a road near you anytime soon seem remote.

Click To View Images:

The CERV concept bike dynamically adjusts the position of the headset based on the terrain being covered The position of the CERV's headset can be lowered or raised to match the terrain being covered without altering the seat-to-crank height The CERV's saddle With no front fork, the CERV uses a mechanism embedded in the bike's frame to steer The CERV concept bike was unveiled at the Eurobike exhibition in Germany at the end of last month. The chances of it appearing on a road near you anytime soon seem remote.

Article Written by: Darren Quick


About the Author

Design-Engine





Design Engine Industrial Design Training Pro Engineer
 
 

 

Carpet Cloak for Invisibility

“For generations, the topic of invisibility has been of great interest. Although it was once dismissed as science fiction, it has now become reality on a small scale. Physics textbooks around the world must be rewritten and s...
by Bart Brejcha
0

 
 
skeleton part for creating the welded bicycle & jig components

Top Down Design: And its History

  Brief History of Top Down Design It all starts with Mil Spec standards. “MilSpecs”, are used to help achieve standardization objectives by the U.S. Department of Defense.  Part of  that specification basica...
by Bart Brejcha
0

 
 

ThingWorx, Augmented Reality, and IoT in the workplace

AR/VR, along with the Internet of Things (IoT), has been talked about for a few years now as the next big thing. To help get it straight, Techcrunch explained it like this: Virtual Reality (AR): places users inside the virtual ...
by Bart Brejcha
0

 

 

Photoshop Level One: Dec 16-17

Adobe Photoshop Level 1 Course Duration: 16 / 32 / 40 hours  Tuition: $150 / $275 / $325 USD Overview: The purpose of this Adobe Photoshop training course is to get you acquainted with the basics of Photoshop and to rapidl...
by Bart Brejcha
0

 
 

BioLite FirePit: Making Fires Toasty Instead of Smokey

If you are an outdoors lover like me, you probably like to go camping , grill food, or sit outside at night with friends around a warm fire. Man has been doing these activities since he learned how to make a fire, and i’m...
by Bart Brejcha
0

 



0 Comments


Be the first to comment!


You must be logged in to post a comment.