E-bike: Deore RapidFire Throttle Dilemma

(Linked from Conversion to eBike) Problem… The Deore RapidFire interferes with the throttle. I could not accept what is shown at 5:00 on https://www.youtube.com/watch?v=4b1dk7J_3v0. In my case it concerns Shimano shifters of type SL-M590, but other models suffer from the same problem. You see the problem? Changing speeds moving your hand to the left. Unacceptable. […]

E-bike: Programming your e-bike

(Linked from Conversion to eBike) External Documentation The KT3 series is a popular line of smart displays that are used for managing settings. I am under the impression that it originates from Suzhou Kunteng Electronics Co., they have manuals and if you stumbled on this page looking for other models, you might want to visit […]

E-bike: Li-ion Batteries

(Linked from Conversion to eBike) Making it yourself, or not Choosing a voltage means going for 48V or 36V. I chose 48V which seems to be the trend (2017). Why make your own battery pack? The cheap packs have lousy cells, the ones with proper cells are very expensive, even on aliexpress. Buying battery cells […]

E-bike: Things that went right and wrong

Things that went North This page is a link from Conversion to eBike. Using microswitches for both brake handles for brake lights and engine stop turned out to be a very rigid solution. The batterypack construction, with EPDM isolation and aluminium housing is easy to make and rigid. The Sunkko 787A Hack created possibilities to […]

E-bike: Conversion to e-bike

This page is still under construction! I am living in a country with right-hand traffic – car steer left – so… This page is about the conversion of a set of two ATB’s to e-bikes or ATEB’s. The bikes are described here: Review ATB low cost high fun. This project is really fun, but I […]

E-bike: Battery Management System BMS

(Linked from Conversion to eBike) What is a BMS If you have 48.1 V, then that is the sum of 13 cells in series of 3.7 V each. If a cell is charged, you do not want more than 4.2 V per cell, otherwise the cell will be damaged. The charger delivers 13 times 4.2 […]

Welding: Sunkko 787A Hack

This page is a link from Conversion to eBike. The Sunkko spot welder has a bad reputation because of its poor quality. It is also popular because of its price. And last but not least: Expect fuses to fly around your ears, it sucks full 16 Amps (and maybe even a bit more when switching […]

E-bike: PAS Hack

(Linked from Conversion to eBike) “PAS” means “Pedal Assist Sensor”. It is a rotating ring with magnets when you pedal and a sensor that senses changing magnetic fields. Problem There is not enough space between the sprockets and the frame. Please observe how much the sensor ring is bended between sprockets and frame. Definite a […]

Tools: Extending a Drill

Extending a drill with a tube is an option I use. HSS drills become weak when heated by a TIG torch. That is the reason you do not want to weld at the border of the tube where the drill slips in. A quick and proper solution is shown here, just slide the drill in […]

E-bike: 48V Wiring

This page is a link from Conversion to eBike. Choosing cables (multi core) and wires (single core) is important. Cable sizes: Never under-size, that is obvious. But also never oversize without reason. I made the mistake to try to standardize and keep expenses low. I bought typical PVC (LiY) cable of 1mm2, with lots of […]