I’m converting an older road bike to e-assist. I want to keep the aesthetic of the older bike intact. This means keeping the Campagnolo Record 10 speed groupset currently on the bike. One thing to consider is how I’m going to control the motor. I want to keep the feel of a road bike, so I don’t want a thumb throttle. I also don’t want a cadence sensor governing power to the motor. So my only option is to install a torque-sensing bottom bracket. All of the torque-sensing bottom brackets on the market are made to JIS square taper standards. Campagnolo uses the ISO standard. Here’s what I learned about the interchangeability of these standards.
Tag: bikes
Campagnolo Wheelset History Chart
I wanted to buy some period-correct Campagnolo wheels for an early 2000’s road bike. I’m familiar with Campagnolo’s groupset history and hierarchy, but their wheels were a complete mystery. I couldn’t find any unified info online. So I read through most of their catalogs, which are available online, and compiled everything into a spreadsheet. This might be useful to somebody else. I am missing a few years so feel free to share any missing info.
My Saved JUMP Bike
Since initially writing this Lime has started to reintroduce masked JUMP bikes into the Atlanta area.
I recently built up a reclaimed JUMP e-assist bike. These bikes were everywhere in Atlanta. I rented them pretty regularly myself. Eventually JUMP pulled out of Atlanta and these bikes disappeared. Several months afterwards though, I started to notice a few JUMP bikes sitting in abandoned lots and ditches. They had all been picked over. One was missing a front wheel, another a battery. A third bike was mostly frame and rear wheel. I quickly realized that between the three bikes there were enough parts to cobble together a complete bike. This got me down a rabbit hole learning more about these bikes. I had to scrape through lots of bits of information around the web. I also learned a lot about these bikes during the teardown.
Bike Touring: Pittsburgh to DC
In May, my friend Seth and I rode our bikes from Pittsburgh to Washington DC. Over six days of riding we covered 380 miles. Our route took us from the Pittsburgh Airport to Georgetown, Washington DC along five connected bike trails.
Finishing at the Potomac
Backstop Rapid Prototyping
On my single speed bike, I run front and rear brakes. However the frame doesn’t have cable routing bosses on the top tube. Right now I just have the cable housing zip-tied to the frame. This isn’t a very elegant solution and I wanted to improve it.
Problem Solvers makes a nice clamp that will route two cables. Unfortunately they don’t make them to fit my 1.0 inch top tube. Carnegie Mellon has a 3D printer and I had always wanted to experiment with rapid prototyping parts. It is very easy to design a part in Solidworks and then export it to the 3D printer. I thought I could design and fabricate something to fit my need.
Versions 1 through 5, left to right.
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