Recent content by Alex W

My back-pedal regen firwmare (3.2b3) does have that feature. I was actually glad to find that part of the thread this morning because I couldn't understand why the braking stopped just before the bike came to a complete stop. It seems like my bike still has trouble knowing when to go again...

I just setup a bike with an AllAxle v3 rear hub and am experimenting with regen for the first time. My setup: AllAxle rear, PhaseRunner v6, CAv3 with v3.2b3 firmware. I'm currently using a Sempu BB for torque/PAS (but my AllAxle has the torque sensor so I can switch if that would help). I'm...

The motor cable on my Bafang G370 (this is like a small G311) had a faulty connection, so I took it apart and replaced it yesterday. Now my Baserunner is complaining with these errors after power-up: The weird thing is that if I clear faults and use a throttle the motor will spin just fine...

This is an old thread, but the data point may be useful. I just replaced a Sempu after over 2 years of daily use. The failure was nothing mechanical, the data cable was pulled a little hard through the frame and rubbed bare. I better protected it with the new one and expect to get more than 2...

A big mid-drive con for me is that it gives you less flexibility in designing the system (controller, motor, bottom bracket, cranks are all a fixed system). Many mid-drive systems (like the popular Bafang BBS series) don't have torque sensing bottom brackets. I find torque sensing pretty...

The E-Rider sensor doesn't work with decent cranks. I don't want wide and low quality cranks on my bike and the Sempu lets me use low q-factor cold forged Ritchey Logic cranks. I've had good luck with the Sempu, I do know friends who have had issues but that could almost always be connected...

Where can these be purchased now that Grin isn't carrying them? Do other suppliers includes a CAv3 compatible cable? I understand why Grin stopped carrying them, but prefer the Sempu to the other options that I've seen and used. I have a 6 year old Thun with lots of miles that will need...

I'm replying for the sake of the archives. I have a G370 on my commuter bike, it was an upgrade from a G31x to get a lighter and more compact motor. Something to be aware of: the G370 won't fit with some dropouts, it is best with fork dropouts that are on the inside of the fork blade (instead...

They sell a version with Anderson connectors for that use: https://ebikes.ca/shop/electric-bicycle-parts/controllers/baserunner-z9-stand-alone.html

Justin: This is really cool, thanks for sharing. I'm another sailor/ev/bike nerd and have been interested in electric inboard options for my sailboat one day. There isn't a lot of real data out there so it is great that you have figured out ways to gather so much data, especially the strain...

G370 is in the simulator. The hub looks awesome! When can I buy one from ebikes.ca? Normalized for Kv it looks a lot like the G311: https://www.ebikes.ca/tools/simulator.html?bopen=true&motor=MG310_STD&grade=0&hp=0&motor_b=MG370_10T&hp_b=0&grade_b=0&axis=mph&mass=90&mass_b=90&kv=7.29 At high...

There are a ton of variables, the most important one for my battery life is the max speed at which I get assistance. If I set this at about 30kmh I will get incredible battery life because on flats I just use human power, but on hills the assist starts to kick in. If I bump it up to 35kmh my...

The BaseRunner comes with a very short Higo cable, so most bikes need an extension anyway. Making a custom Higo to Anderson adapter is cheap and easy and will let you combine your parts. I've always used Bafang Higo cables and cut them in half, they come with standard color coded wires.

It's okay for the CAv3 to flip to "custom". The Sempu settings just get you close, but every device will have slightly different components and require zeroing out. I hope that your new BB solves the problems and that Sempu reliability goes up!

You should test by seeing if the CAv3 can show pedal RPMs and pedal torque (in newton meters). There is a calibration step to zero out the pedal torque. This will let you see if it is a programming issue with the torque assist in the CAv3, or just a basic sensor issue. The installation of...