Technical

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

Nov 16, 20195 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, 20191 Comment

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, 201914 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, 20176 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

Motor Tech: learn the terms, Part-2

Dec 18, 20162 Comments

If you actually know anything about electric motor technology, and you don’t hate me yet? Buckle up…this article is going to be a bumpy ride.

Ebike charging for long Battery life

Sep 14, 201615 Comments

Ebike charging for long Battery life So, you want your battery to last a long time?…remember that most people will not ride their ebike 500

Mid Drive Kits, Dump the Derailleur and get...

Jun 04, 201647 Comments

The popular Bafang BBS02 and BBSHD mid drives are introducing an entirely new generation to electric bikes. Many of these new ebikers are asking about

​Ebike Battery Math: Volts, Amps, Amp Hou...

Dec 05, 201525 Comments

These days, awesome ebike battery packs constructed of quality 18650 cells are available to average bike builders thanks to  advances in 18650 DIY pack building