It’s tough to compare bikes qualitatively so I mounted some guages on the bike to grab some actual hard data. I took a piece of plastic and dremeled two holes in it so I could attach it to the front boom with a hose clamp. I then held a voltmeter agains the plastic and drilled read more »

I got the hall sensor wires worked out– the +5v wire was rubbing against a sharp part and actually got cut. I fixed it and the bike worked. I took it to work and to the San Jose EAA meeting and everyone took turns riding it and then going 2-up. Initial results are very promising: read more »

I removed the now useless 2nd bottom bracket and drilled holes in front of the rear wheel in the triangle for an aluminum tube. The aluminum tube is super lightweight and should work just fine as a foot peg. Best upgrade so far: I fixed up the driver’s seat. I used two L shaped pieces read more »

This is a continuation of the Serial Hybrid #2 bicycle. However, I decided to make some adjustments for comfort and to turn it into a tandem. Can this relatively compact bike be adapted for 2 riders and how will under seat steering and a better seat affect comfort? Now that I have 12 lithium power read more »

This bike and simple serial hybrid setup works. Unfortunately I’m afraid of what will happen if I hook the generator up to lithium ion batteries. I am now working on an improved circuit for use with lithium batteries.

Lots of bike work in the past couple of weeks. The new sprocket arrived AND… it’s not a plain sprocket, meaning it has a collar with a set screw. Worse yet, it doesn’t easily line up with the generator shaft. Doh! Ben kindly offered to use his CNC to cut the center out of the read more »

Unfortunately the bike took a lot of abuse in the past week. I took it to the San Jose EAA meeting on March 8th where it received a good deal of attention. I left the bike at work because this week I moved into a house in San Mateo and began setting up the garage. read more »

I build a head mounting for my Canon HV20 using a bike helmet, two large washers, a 1/4″ bolt, and two 1/4″ nuts. I used a small bicycle lock to make sure that if the camera fell off anyway, it would not fall far. I then rode both bicycles around to record the experience. This read more »