RRADbike
A novel pump action device to replace the pedal crank on your bicycle, and make your cycling signifi
Thank you, all of you who pledged support for the Kickstarter campaign. Unfortunately, it failed. The target was ambitious, but I thought RRADbike compelling enough to succeed. I was wrong. The project will, however, continue, by reverting to more conventional "Angel" funding.
A tentative plan is to sell 25% of the company to raise the $100,000 necessary to take RRADbike commercial. (Two KS pledgers have already agreed to each commit $10,000 on these terms).
Raising the remaining $80k will, however, be a challenge. Anyone interested in details, please contact me directly: [email protected].
Thanks again to all who supported the Kickstarter.
New video encouraging pleges of support for RRADbike pump action cycling kits on Kickstarter at: https://kck.st/2xtHV7q
11/06/2018
RRADbike Kickstarter rewards available at:
https://kck.st/2xtHV7q
04/06/2018
New Kickstarter landing image.
https://kck.st/2xtHV7q
30/05/2018
Now on Kickstarter! https://kck.st/2xtHV7q
RRADbike crankset replacement kit available as a pledge reward!
https://www.kickstarter.com/projects/1306694293/rrad-cycling-evolved
More info: https://www.rradbike.com/
29/05/2018
RRADbike crankset replacement kit retrofitted to an existing bike (CAD renditions).
More at www.rradbike.com
29/05/2018
Now on Kickstarter! https://kck.st/2xtHV7q
CAD view of a RRADbike crankset replacement kit to enable Pump Action Cycling.
Details at www.rradbike.com
25/05/2018
Cool engineering view of what the Mountain version of RRADbike crankset replacement kit that enables pump action cycling will look like!
More info: www.rradbike.com
23/05/2018
Two US patents issued so far.
US 9,856,928
US 9,829,054
Check them out on Google Patents or at www.rradbike.com
23/05/2018
18 months of 3D printed prototypes!
More details on the journey at www.rradbike.com
Here is me fitting a RRADbike prototype Pump Action kit to my old bike - then testing it.
And for more - visit www.rradbike.com
Early RRAD proof-of-principle prototype. Computer rendering plus video of 3D printed version in action. (25 sec).
Further details at www.rradbike.com
10/05/2018
Thanks Dave C., for your suggestion on alternate uses for RRAD. Yes, a bike bar would be more efficient with RRAD enabled pump action cycling - leaving more energy for lifting the glasses of beer.
10/05/2018
Early prototype of a magnetically hinged overrunning clutch that forms the basis of RRAD. First, a computer rendering. Then, a 3D printed, nylon prototype fitted with neodymium rare-earth magnets.
Further details at www.rradbike.com
This 5m 41sec long video explains why pump action cycling is so effective.
Even more details at www.rradbike.com
Support the Kickstarter at https://kck.st/2xtHV7q
Pump Action Cycling using a standard bicycle retrofitted with a functional prototype of a RRADbike crank set replacement kit. (Only 41sec)
More details at www.rradbike.com
Videos (show all)
