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  1. C

    RH 212 hubmotor split in 2 on my new build e bullit

    So I managed to kill a RH212 motor from grin. I recently build an electric bullit. (My second e cargo, first one on 2 wheels) And as I have some more disposable income I did not skip on parts. Bullit frame, Alex rims. Magura mt5 hydraulic disc brakes 72V 34Ah battery, with samsung cells...
  2. C

    Lithium starting battery recommendation? For large rescue boat.

    Lithium starting battery recommendation? What is the go to brand for lithium starting batteries? Looking for starting batteries for a 13l 800hp marine diesel. Engine has a 7kw starter so at 24V pulls about 300A for 30 seconds. But recommended lead acid batttery would be 800-1000CCA. Note: this...
  3. C

    Replaced my controller. Now only getting 19km/h

    I have an older sparta emotion C4 ebike. Which I keep as a spare to my main commuter ebike. The bike has a sanyo CMU9 geared front hub motor and runs on 36V Recently I somehow managed to fry the original ananda controller. :cry: Pictures: https://photos.app.goo.gl/THCSQSFndmZjPD5R9 I...
  4. C

    using a geared hubmotor under water?

    I would like to build a handheld rotating brush to clean the hull of my boat. Something like this: http://www.maxdepaz.es/clonar/wp-content/uploads/2017/08/2-e1528796902220.jpg On a much smaller scale. I could drive it with a belt from above the water. But having a geared hubmotor in the brush...
  5. C

    A new fast and stealth cargo ebike

    I have been driving my blue monster for 6 years: https://imgur.com/a/LXcnI Besides this behemoth I also have 2 fast ebikes with bafang BBS02 motors. But I want a fast and stealthy cargobike. The behemoth is too slow (25km/h) and inefficient. The fast ebikes are fun, But I need some cargo...
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