OPEN SOURCE DESIGN PROJECT
Before you can design anything, you need to know your own personal center of gravity. This data will follow you wherever you go in the design process.
Pick a bike that feels comfortable to you and perform the following test. If you weigh 160 lbs and the bike 30, then the scale will read 114 pounds or thereabouts. The front axle is the datum. If the wheelbase is 40 inches, or one meter, then the balance point is 24 inches aft of datum.
This is your personal center of gravity. If you have any questions, watch a video on how to calculate the center of gravity for a small airplane. It is exactly the same.
CENTER OF GRAVITY IS THE KEY
A BIKE WITH MOTOR AND BATTERIES ADDED
TAKING A STORE BOUGHT BIKE AND ADDING MOTORS AND BATTERIES CHANGES THE CENTER OF GRAVITY UNLESS YOU SIT ON THE MOTOR AND WEAR THE BATTERIES.
That is not practical. However, the structure needed to connect these new components can be easy to do. The drive components, however, are another story.
Fully detailed plans of the most efficient, fastest tandem ever. For expert metalworkers only
Loveboat all set for twentieth anniversary ride across America. First done in 1995 in three months, the repeat ride shoves off during the full moon in May.
We had such a good time on the last ride, we decided to repeat the same route and visit the same people.
ROBOBIKE IS LGBT FRIENDLY. Queer or straight, x or y chromosomes, makes no difference to us.
DESIGN, BUILD, RIDE
Machined parts are now available for the modular aluminum bike we call VOYAGER.
Send email to Bonita for details.
There are two types of ebike riders in the world. The first group is comprised of those who have electronic controllers, meters, or other devices that have quit working for some reason. The second group is comprised of those riders who will experience a failure in the days to come.
Obtaining warranty repair is usually not possible.
We here at Robobike have established working relationships with some of these suppliers who encourage our efforts to repair or at least evaluate components for possible warranty service. YOU, as an end user, stand little to no chance of obtaining warranty service on your own.
We service BMS and Protection modules, DC-DC converters, boost converters for solar charging, mains charging, J1772 charging. Motor controllers, and data acquisition systems.
To obtain an evaluation of your board repair needs, send an email to
Knuckles@Robobike.com with a description of your needs. Our staff will first contact the manufacturer for warranty repair and then give you an idea of the success rate, cost and timeline for such repair. We also repair in-house for all types of digital and analog circuits. A wise man once said, “In the end, it’s all analog”.
Warranty Help for Chinese made electronics
Robobike has kits, much like the Erector Sets ™ of old that allow for the design, modification and fabrication of bicycles/tricycles/quadcycles of any shape and size. A collection of tubes with an assortment of bottom brackets, head sets, drop outs and doublers offer the builder a chance to build to his heart’s content. Build, ride, change, build, ride, change, etc etc. You get the picture.
We now have developed a catalog of pieces to help those of you interested in DIY bikes, particularly battery powered two wheelers.
…we will send you a catalog if you want it. Just send an email and we can get you one.
Like us if you want but please don’t follow us.
We have given you a set of links to our past efforts. Robobike no longer builds custom bikes or kits on demand. We are now entirely Electric Bikes.