All posts by spinningmagnets

Grew up in Los Angeles California, US Navy submarine mechanic from 1977-81/SanDiego. Hydraulic mechanic in the 1980's/Los Angeles. Heavy equipment operator in the 1990's/traveled to various locations. Dump truck driver in the 2000's/SW Utah. Currently a water plant operator since 2010/NW Kansas

Introduction to battery pack design and bui...

Feb 21, 20198 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

Cycle electric Komsa, a stylish upscale cit...

Feb 07, 20193 Comments

This German ebike has an elegant and subtle style that caught my eye. Style may not be hugely important to most people, but I think

TQ-Systems mid-drive, the German off-road h...

Feb 06, 20191 Comment

TQ used to be called “Clean Mobile”, in case this drive looked familiar to you. But they didn’t just change their name, they also made

Pedego finally has mid drives, plus Captain...

Feb 01, 20197 Comments

This is news because Pedego sells more turn-key ebikes in North America than anyone else. What makes it strange is that they waited so long

12 All-In-One Hubmotors, because I keep get...

Jan 30, 20196 Comments

When it comes to installing an electric bike kit, many potential buyers are nervous about the technical difficulties of that task, and they are drawn

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

Jan 14, 201910 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

Custom Build Gallery, Joel’s Yuba Car...

Dec 16, 20183 Comments

There are several things I really like about this build, and if I was building a daily commuter, a longtail electric cargobike with a large

TSDZ2, mini 750W mid-drive with torque sens...

Dec 01, 201814 Comments

The TS in TSDZ2 stands for Tong Sheng, and that company decided a few years ago to make a mid drive kit that was as

Mobipus hot rod controllers, and Shenta Tsa...

Nov 19, 20182 Comments

Over the last year, I would occasionally hear about these new Mobipus controllers. Once a few hot-rodders I know got their hands on one and