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Best Black Friday Ever: You can finally buy...

Nov 29, 20199 Comments

For the last 3 years, my primary ebikes have all been powered by the Ludicrous 2500W BBSHD mid-drive unit. A good friend of mine found

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

Nov 19, 201911 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

Meet Sparky, the giant unicorn art electric...

Nov 12, 20193 Comments

My good friend Doug Shire told me a year ago that he was going to build an art car. I asked him “Why build an

Quit your whining : How much ebike motor no...

Oct 14, 201915 Comments

I’ve ridden every single ebike I can get my hands on in the last 5 years. So are fast, some are slow, some are big,

Introduction to battery pack design and bui...

Jun 26, 201912 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, 20198 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, 20199 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, 201921 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