Technical

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

Jan 14, 20194 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, 20186 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, 201724 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, 20161 Comment

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, 201610 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, 201643 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, 201522 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

52V battery packs, plus the 3077 FET we lov...

Nov 02, 201512 Comments

For years, the electric bicycle market used legacy designations for power system voltages, like 24V, 36V and 48V. This was because the earliest systems used

Water-proofing, and basic ebike trouble-sho...

Oct 23, 201510 Comments

Sooner or later, even the most expensive ebike can have a minor glitch. The problem is that…right now there aren’t a lot of ebike mechanics