Technical

Five hubmotors with the controller built in...

Mar 21, 2020No Comments

If you have ever seen the inside of a direct drive (DD) hubmotor, the thought might have occurred to you that there is a surprising

Using ebike batteries to power your RV or t...

Dec 16, 20192 Comments

Many years of my life I have spent living in vans. My first travel van was an old 2001 Honda Odessey that I outfitted with

I just can’t stop: Best brakes for e...

Dec 10, 20199 Comments

Nothing sucks worse than wanting to stop quickly on your ebike and not being able to. In the last 5 years, I’ve tested dozens of

I’ve got the power: Using the Cybertr...

Dec 03, 20196 Comments

I watched the Cybertruck reveal and knew I had to have one because it was everything I had always wanted in a car but never

Electric vs Gas vs Diesel: When is a horsep...

Nov 16, 201912 Comments

I’ve driven every single fast car, fast motorcycle, big truck, and electric anything I can get my hands on in the past 30 years. I’ve

Switched Reluctance motors, an old design i...

Oct 12, 20194 Comments

Reluctance is an engineering term that (as far as I can tell) means that when you create an electromagnetic field (in the shape of a

Bafang Ultra Max, the new big dog on the po...

Jan 14, 201917 Comments

The Bafang Ultra Max mid-drive has the biggest motor you can buy in a factory turn-key ebike right now. It is labeled as a 1,000W

Making a Resistance Soldering Unit, and may...

Dec 25, 20187 Comments

Most ebike builders have never seen a resistance soldering unit, so they don’t know that it’s an option when you are moving up to soldering

An introduction to lithium 18650 batteries

May 03, 20178 Comments

The development of electrical transport, from skateboards and scooters to buses and trucks, has been an evolution of battery power. We’ve been able to store

How to make a lithium battery last, or̷...

Mar 16, 201727 Comments

We have written in the past about tips that will help your expensive lithium battery pack last as long as possible. This article will cover