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  1. A

    is it dangerous to run 17a controller witn20ah battery?

    The bottom line is you're fine running a 17 amp controller.
  2. A

    g062

    Battery may not need upgrading. I've been running a standard 14.5 ah RAD battery (48v) on my 1000w MAC 12t powered bike since 2017. It'll supply 1500w and has a range of 30-35 miles. Has worked out well for my needs....
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    g062

    Go for it! What controller are you thinking of? Is it available with the compatible connector used on that motor, or will you have to splice a new connector on?
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    BBS02 which current limit better

    Regarding the current limit setting, it's about protecting your controller. Not so much a big deal with the BBSHD, but it's a known weak spot on the BBS02. My advice would be to try it set at 18a and see how you like it/if it gets the job done for you. You may find it's just fine..... If you...
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    E-bike mid-drive motors hardly outperforms hub motors

    When talking 250w mid drive vs. a much larger (1000w+) mid, the difference will be how fast you can climb that steep hill (not so much an "if" it will climb it), and how picky the bike will be regarding it being in the "right" gear at any given moment. The bigger motors are WAY WAY more...
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    Bafang ultra with small front chain ring.

    I think a lot of "what size is right" depends on you and your riding habits. There really is no wrong, just better or worse for YOU! 42t is a good starting point, but for the more urban type riding I do, I run a 50t. One of the big reasons, for me, is to keep me off that very high wear 11t in...
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    Leaf Hub Motor Question

    1. no 2. none 3. installed case with wires pointing down. I did a couple of Leaf installs early in my e-bike career, but have since moved on to geared hubs and mid drives as they suit my purposes better. My bikes are ridden for my enjoyment, and are not ridden in the rain unless I get caught...
  8. A

    A plea for help: Help me find a motor/controller for electric snowmobile conversion: 8+kW, >20Nm, cheap!

    After retiring with 40 years experience in snowmobiling, I have one thought to share. "Cheap" and "snowmobile" are mutually exclusive terms...... Nice plan, but you're going to need some pretty healthy batteries. WAY bigger than what you are thinking I believe....
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    Looking for a more reliable display than the KTLCD's...

    Settings are held in the display..... Which one are you using? You are getting a power down after no uses for several minutes, or something else?
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    fell off bike (in much pain) advice

    Have patience, and plan on using every ounce of it you can muster the first few WEEKS (not days!). 3 months outa just about do it........ Just recovered from an ugly fall last summer involving a couple cracked ribs after landing flat on my back..... I couldn't even sleep in my bed the first...
  11. A

    KT36/48ZWSR-ff01 Hidden options

    The "up" switch used to turn the headlight on/off feature requires a small, very easily burnt out, daughter board. There is absolutely no protection on the output. Not available separately to my knowledge, and not repairable. When functioning, power output best used to control a relay with a...
  12. A

    Mac Motor to Kelly Controller Temp Sensor

    Silly question, but are you sure your MAC has a temp sensor? The white wire is generally for speed.
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    Question about frame choices with 170mm rear dropout spacing

    I THINK maybe some shopping around may show that there are quite a few who bought into this "Fatty" idea by mistake. Thinking one these bikes might be purchased pretty reasonable. I bought one, hated the fatty wheels and tires (feels huge, because it IS huge!), but loved the rest of the bike...
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    Is the Bafang gear sensor necessary?

    We can't all be experts at shifting either. Unless you are one, I wouldn't call the sensor a "gimmick" with any sense of fairness - especially when considering the chain snapping potential of some of these bigger motors when playing hard with them? Even with a sensor installed, an "expert"...
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    Is the Bafang gear sensor necessary?

    Says the guy that's never ridden one of the later model Bafang mids?
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    Is the Bafang gear sensor necessary?

    The issue comes in when considering that the motor doesn't always stop when you stop pedaling or lighten up on pedal pressure. Some "tunes" will have the motor running on a bit - and this is where the shift sensor can be a big help, by shutting power to the motor off for a split second. Yes, an...
  17. A

    BBSHD Controller mismatch

    My suspicion would be the Egg Rider. Have you tried setting the bike up without that?
  18. A

    I can't balance my spoke tension

    Second vote for start over. Once loosened, bring all the nipples down to the point where the wheel is starting to stiffen up. Count the number of threads still showing below the nipple, and make sure that same number of threads is showing the same all the way around. Now start the final...
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    Unequal power left and right legs

    I can share that I recently picked up a bike that came with a newer version of the Bafang M600 (Evelo Atlas). In PAS 1 at lower speeds/cadence levels (under 10mph?) that bike WILL show each pedal stoke on the watt meter. That said, I am not feeling or hearing any difference, from one down stroke...
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    Radpower phasing out direct drive motors?

    The RadCity's are STILL a decent bike for a fair price in a lot of opinions. The reason you aren't seeing many direct drives is that the geared hub and mid drive are FAR more suitable in most applications - especially in stop and go and hill scenarios. Sure there are direct drive fans, but I'm...
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    Wheel Diameter or Magnet Number ?

    Assuming worst case, you set it up incorrectly. It's not hard to check with your speed with a GPS and fine tune the number as required. It's NOT going to burn your system down or anything like that....
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    Wheel Diameter or Magnet Number ?

    I'll add to that - but don't be real surprised if it's doesn't line up with a GPS. Most generally accept the results as "good enough".
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    Controller mis-sized?

    Running more power through a motor than it's designed to handle is no big deal. There's just one caveat. The time you do that is building heat within the motor that it isn't designed for, so you have to keep that time spent "over power" short - with cool down time allowed prior to doing it...
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    Rad rover 6 plus rattling noise when motor spinning...changed the clutch and planetary gears but nothing doing.

    It sounds something like the noise a loose magnet might make? When you had it apart, do you remember seeing any metal shavings? Is the bike under warranty?
  25. A

    Motor perhaps overextended?

    Not wanting to have to get it wet if I don't have to, I'd start with a brush of some sort. How stiff determined by what it takes to remove that dirt...
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