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Carbon Fiber Dual 700C Quasi-Lowracer    
The D7CFLR is the culmination of several years of design, building and testing a highly aerodynamic front wheel drive lowracer. This bike is the carbon fiber version of the steel bike I built a few years ago.

Click here for more information about this project

Charles Brown Recumbent Design    

Charles Brown has created four great documents detailing many of the fundamentals and esoterica of recumbent vehicle design. 

  • Bicycle frame design explores different types of recumbent bikes and some good criteria to consider when you are designing a frame.
  • Steering and ride details what makes a recumbent bike handle well.
  • Air drag formula provides methods to determine and reduce the air drag of unfaired recumbent vehicles.
  • Putting It All Together takes the concepts discussed in the previous articles and summarizes them
Wide Eyez Bike Helmet Shield Review    
The Wide Eyez bike helmet shield is an Acrylic plastic lens that attaches to your helmet. It comes in 3 colors, clear, bronze, and dark grey. Graham Hill of Wide Eyez says that the bronze and dark grey shields have a 98-100% UV rating, so they could completely replace sunglasses. It has a nice system to allow it to be flipped up or down and detents make it stay in either position. Read more...
2015 Human Powered Speed Challenge    

Todd Reichert of the Canadian AeroVelo team has reset the top speed record to an amazing 86.65MPH at the 2015 World Human Powered Speed Challenge! 

This yearly event attracts athletes and engineers from around the world combining technology and muscle power to set the fastest flat track human powered speeds in the world. 

Check out the other records set this year

HPV Shell Designer    
Wayne Shook has created an amazing program called HPV Shell Designer which allows Windows computer users to easily create a CAD model of a scale human powered vehicle rider, frame and shell. This allows people to create a fairing that they know will fit them and their bike. This image shows a lowracer frame with a camera bike shell, but users can create trikes, prone bikes, or even upright bike fairing designs. More...
Ralph Koser's Recumbent Cycles    
An article by MIKE ELIASOHN
Ralph Koser has been building and racing recumbent bikes since before I got involved in HPVs. I have vivid memories of him zipping around the track in his micro-liners. Mike has written a great article highlighting the cycles that Ralph has built over the years and here it is:
Ralph Koser's Recumbent Cycles
Light & Motion bike light reviews    


Light & Motion had a booth set up at the 2014 Recumbent Cycle-Con and I stopped by to check out the lights. The product at the Light & Motion that caught my eye was a lightweight USB rechargeable unit with a separate head and tail light that straps to your helmet. 
I chatted with the booth representative for a while and he also showed me a USB rechargeable tail light which seemed blindingly bright in the convention hall. After the show, the L&M rep gave me the VIS360 and VIS180 bicycle lights and said they would appreciate a review on the products. They seemed like great products and they are made in the USA so I agreed to review them. Read More....
New Trike Speed Record    
Congratulations to Australian Gareth Hanks of team Trisled for setting a new multi-track human powered vehicle (trike) record at 72.94 MPH during the 2014 WHPSC!
WHPSC 2014 at Battle Mountain    
The week long 2014 World Human Powered Speed Championships is over. At this event racers from around the world combine technology and athletics to achieve the fastest flat track human powered speeds in the world. Currently the fastest human is Sebastiaan Bowier of Human Power Team Delft. In 2013 he set a new speed record of 83.13 MPH! 

Check out the WHPSC 2014 pictures and results here
Evelyn Hamilton, Recumbent Racer?    

Very little has been said of historical female recumbent racers. Female bike racers were downplayed in general in the early 1900s.

Evelyn Hamilton was a 1930s British cycling legend who was known for racing upright bikes. What was not widely known was that she was a recumbent enthusiast, and possibly a recumbent racer!


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