How to Build Yourself

How to sell a used ebike and never lose mor...

Feb 14, 20203 Comments

In the last 6 years I have bought and sold a lot of ebikes. Although I currently have almost a dozen ebikes, I have sold

How the California Ebike law has brought fa...

Dec 06, 201912 Comments

Before California came up with their ebike law it looked like mainstream ebikes in the US were going to stay 750 Watts and speed limited

Care and feeding for your high power mid-dr...

Dec 05, 20191 Comment

I love mid-drives, just read any article I’ve ever written and if you don’t come away with anything else, you’ll feel my love for high

Finally: An article on how to buy an ebike ...

Nov 19, 201910 Comments

It’s interesting to me how many blogs have done articles on how to buy ebikes, but frequently their articles highlight a bunch of different ebikes

Introduction to battery pack design and bui...

Jun 26, 20196 Comments

This third installment is mostly about the special considerations that are needed when building a high-amp battery pack, plus…I will list some of the products

Using an eccentric bottom-bracket adapter t...

Jun 22, 20194 Comments

Older bicycles (and many of the newer affordable style) do not use the common Shimano threaded cartridge bottom-bracket. Instead, they use a larger-diameter smooth tube

Adding the Bafang Ultra Max to a Frame

Apr 16, 20196 Comments

Before we get started, adding a Bafang Ultra Max to a frame will involve welding, so if you don’t weld, or…you don’t know someone who

Introduction to battery pack design and bui...

Mar 30, 20196 Comments

If you are new to battery-pack building, but you are also a pretty capable fabricator, this article will define some of the common materials and

Introduction to battery pack design and bui...

Feb 21, 201915 Comments

Most garage-builders who decide to assemble their own battery pack usually have a lot of experience. However, pack-building continues to be a frequent source of