Dave Daum's latest activity

All the brackets are welded, the master switch is installed and I just have some minor wiring to do. I’m getting excited to power it up!

Yesterday I finished the last of everything except wiring the master battery disconnect and resistor. I just need to create a break in...

oh forgot to explain this one: Both values need to be correct otherwise your speedometer won´t tell the truth wheel Diameter in...

@fmxxx666 This will save me a considerable amount of time! My email is dave.daum@gmail.com Please feel free to email me the the...

Ok sure Here you go: Bike type chose surron ultra bee Your QS138 motor After that it will do a motor calibration keep the rear wheel...

Hello @fmxxx666 . Thank you for your kind offer. This is my first EBMX controller installation. I would absolutely love your help with...

Almost ready to power up.

I did install this same size battery from Amorge with the EVE40P cells ( less expensive, only 4000mah but 35-40AH) A couple of...

Here are the dimensions and specifications for my battery. So far Amorge has built five of these for my use. I believe @DonCox built one...

I bought a second 2020 CRF450R roller. I know, one is enough. It is amazing how many blown up bikes are out there. The electric...

Greetings @fmxxx666 I’ve been riding my first CRE with a 13/48 sprocket set. That has worked great. I may start with a 13/52...

hello, im currently building a 2010 steel frame ktm sxf 450 into electric, i first went with the QS138 90h v1 motor but mounting it into...

@grant c 850 conservatively max settings to run the QS138 70H v3 at is: on 72V: 350 battery amps 1000 phase amps 35kw 70% field...

The most difficult task was cutting the titanium fuel tank to clear the battery. The battery can be hot swapped in about 2 minutes...

Hello Gang, Recently I purchased a pristine 2020 CRF450 rolling chassis with a ton of goodies and about $4000.00 of Racetech suspension...