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

The DIY Junkyard E-BMX Friction Drive

Jul 30, 2017No Comments

I have seen youtube videos on a regular basis that show an old cordless drill being used as a drive-motor for a small bicycle. I’ve

What’s inside an 18650 cell? And why ...

Jul 26, 2017No Comments

There has been a boom in ebike builders making their own battery packs out of the popular 18650-format cells (18mm diameter, 65mm long), and I

Lost Sierra Electric Bike Festival 2017, an...

Jul 15, 20171 Comment

EcoBikeAdventures.com hosts rides in the mountains of central California, and they sponsored a fantastic annual event called the “Lost Sierra Electric Bike Festival”. When the

My INSANE 3300 Watt, 84 Volt, ERT-Kitted BB...

Jul 10, 2017No Comments

One thing I can tell you for sure about the ERT External Sinewave Controller Kit: don’t take it through airport security. ______________________________ by Patrick M.

Custom Build Gallery, Richards’ Tango...

Jul 07, 2017No Comments

This Ruff Cycle “Tango” framed Cruiser has a simple drive system, but…it is the style and accessory choices that the owner made…which make it such

Parenting Tip #42: Electric Bikes Are Good ...

Jul 06, 2017No Comments

While selling my old e-bike build on Craigslist I had a very nice mother contact me looking for more information on my ebike and on

The New 21700 format Lithium Cells in 2017

Jun 16, 20177 Comments

High-capacity packs using 18650-format cells have become popular, and we will have some interesting options soon with the new 21700 cells that are just now

Custom Build Gallery, Patrick’s RC mi...

Jun 02, 20171 Comment

Patrick is a university engineering student from the Netherlands. Seven years ago (in 2010) he began posting on endless-sphere, asking questions, and building up custom ebikes…with

Specialized Turbo Vado-S

May 25, 20172 Comments

Normally, I wouldn’t care much about a turn-key ebike that uses only 350W, but…the Specialized Turbo Vado-S shows that the E-division of one of the

Sondors Fold, a 20-inch wheel E-fatbike

May 13, 20173 Comments

Sondors has announced that they are coming put with a new aluminum-frame model, and this one not only has fat tires on a smaller 20-inch