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    Cycle Analyst V3 preview and first beta release

    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...
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    Cycle Analyst V3 preview and first beta release

    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...
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    G370/Baserunner issues after cable replacement

    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...
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    Sempu Torque Sensor Help

    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...
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    Geared Hub vs Mid-Drive?

    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...
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    Sempu Torque Sensor Help

    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...
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    Sempu Torque Sensor Help

    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...
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    Small hub motor

    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...
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    GRIN baserunner with "shark" pack that has no controller case like EM3EV's?

    They sell a version with Anderson connectors for that use: https://ebikes.ca/shop/electric-bicycle-parts/controllers/baserunner-z9-stand-alone.html
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    Shamrock, 25 foot sailboat electric conversion with an ebike hub motor

    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...
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    2019 Motor Simulator, Mid-drives and other updates

    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...
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    How to plan how much battery I need for a TSDZ2?

    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...
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    How to convert anderson plugs to Higo plugs?

    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.
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    Sempu Torque Sensor Help

    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!
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    Sempu Torque Sensor Help

    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...
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    Love the Baserunner, suggested improvements

    Yes, you can pull the Baserunner out of it's carrier and mount it differently. It mounts with 4 M3 screws and so you can make a different aluminum heatsink for a custom mounting. I plan on doing this soon with my regular bike. A downside is that the Baserunner has very short power cables...
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    Love the Baserunner, suggested improvements

    I have two bikes with the Base Runner now, and one uses a Hailong battery case. It works great and cleaned up the installation. A standalone version would be nice too.
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    Bafang G3xx series high reduction ratio geared hub motors

    I had the same guess of it being a different metric, but one can always hope. I look forward to your analysis and hope you offer them (unless it is a total dog of course). It looks ideal for light e-bikes (~15kg), an important market for DIY since there are so few commercial offerings.
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    Bafang G3xx series high reduction ratio geared hub motors

    The G370 is really interesting, has anyone tried it yet? This looks like a nice hub for lightweight conversions. My everyday bike today uses a G311 and 2 LiGo batteries, but I have the Baserunner set to a max of 10 amps (around 360 watts), so a 2lb lighter and lower power hub would fit my uses...
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    Looking for 250W option

    Not according to the Grin Motor Simulator: https://www.ebikes.ca/tools/simulator.html?bopen=false&motor=MEZEE250&batt=B36LiGox8&wheel=700c&hp=100&grade=10 I've only ridden these short distances on friend's bikes, so I don't have personal experience to share. The motor clearly has way more...
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    Looking for 250W option

    eZee will do it too. Like the BBS it is sold as 250W, though it is a much stronger motor. It'll be burning 36wh/km climbing a 10% grade at 20kph, so you'll want to carry a huge battery. BBS01 has some pretty big downsides, especially giving up the ability to get torque sensing and making for...
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    Looking for 250W option

    No 250W-spec motor is going to get you 15-20kph on 10% grade hills with this load, unless you supply 350-400W yourself (this is approaching racing cyclist in a time trial territory, not sustainable for an average fit cyclist).
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    Looking for 250W option

    I didn't seriously suggest that he put a 20" wheel on his bike, that obviously won't work. I showed that using a 20" wheel with a motor spec'd for 700C doesn't make a big difference in functional output for this scenario. That is the same as changing the gearing in the motor, which is what you...
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    Looking for 250W option

    That is a power limitation more than a gearing one. You can simulate this by changing the drive wheel size down, using the "G310 standard" and going from 26" to 20" gets the motor into a more efficient zone and gets the speed up from 13.6kmh to 14.6kmh. That is a minor bump. Of course the max...
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    Looking for 250W option

    and this is why factoring in human power is important. Without it at this grade the hub is almost stalled and is in a very inefficient power range where it can't really operate. In that case you won't see any difference between the hubs, both are in the very inefficient speed range: This is...
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