Announcement

Collapse
No announcement yet.

(old) Motor mount modifications to increase rigidity.

Collapse
This topic is closed.
X
X
  • Filter
  • Time
  • Show
Clear All
new posts

    #31
    Yea, constantly drawing comparisons between a 1+hp motor and a 4 to 6hp motor gets tiring for sure.. these are apples and oranges comparisons.. next will be comparisons to a Whizzer .

    For BBSxx content in a Cyclone thread, I have over 1000 miles on my wimpy 9 speed, hollow pin chain running 52/11 and it is still in great shape and the cassette gears look good also.. I ride over 100 miles/wk at an average of 20+ mph at 10 to 12 Wh/ mile.. efficient numbers if you ask me.. but I'm not going to compare those numbers with a 5kw motor at 40mph .. understandably, the watt hours will be considerably more with a 3/4/5 kw motor

    Comment


      #32
      I don't think he likes Bafang, brah. Everyone is inclined to their own opinion. If he does not like the BBS** motors, that is fine by me, and he is welcome to say so.
      That said, I would be careful to not step on everyone's toes in the process. State your reason for believing the product is inferior and let the individual decide what they will.

      Now, I'm off to bed. You boys kiss and make up.

      Comment


        #33
        There is nothing wrong with not wanting to go faster; the same way there is no shame in accepting that low power is not shameful. I like to have capabilities on anything I build, even if later I'll be cruising at 15 mph. Having a 60 mph top end gives me options and I like options.

        What gear combo are you using? I run a 48T (chainring) and a 42T cog for ~27 mph cruise (26" rear wheel) @ 650-700 watts, and a 48T-36T at 31 mph @ 850-950 watts. I get about 29-32 Wh with a 28 mph average speed over 8.2 miles. No pedaling.

        The general assumption before I started wrenching on eBikes was that mid-drives ate chains, and that the more power your mid drive had, the less chain life. Some people went as crazy as to put go-kart chains on bikes etc, no thanks, I like KISS... So I studied the problem and I realized why chains stretch, so at that moment I knew that if wanted to have more power I would have to pursue RPMs, whichI've explained to death why the Cyclone is a better kit for high speed application than the Bafang, the same way as a Tagent RC drive is probably even more suited for stupid fast speeds than a Cyclone 3000W mid drive. I don't get mad at that fact, if I need to go faster I'll get a Tangent or a 7.5kW mid drive rather than mourn that my 3000W kit is not powerful enough.

        To repeat myself one more time: running a 3 kW kit my eBike at 30 mph got 2600 miles from a cheap KMC 10 speed chain, which is pretty decent considering ppl gave me all kinds of crap for using a 10 speed chain, stating without any facts that my chain will wear out quickly; which it would've if I would've followed the conventional wisdom of more torque... instead I chose more RPM... nothing magical to that. I am now expecting to double that chain life figure on the trike, which will hit 1000 by next week, so in less than 5 months at the current rate I'll have about 5k miles; that is running a double the weight and twice the power of my previous eBike.

        G.

        Originally posted by brucemetras View Post
        Yea, constantly drawing comparisons between a 1+hp motor and a 4 to 6hp motor gets tiring for sure.. these are apples and oranges comparisons.. next will be comparisons to a Whizzer .

        For BBSxx content in a Cyclone thread, I have over 1000 miles on my wimpy 9 speed, hollow pin chain running 52/11 and it is still in great shape and the cassette gears look good also.. I ride over 100 miles/wk at an average of 20+ mph at 10 to 12 Wh/ mile.. efficient numbers if you ask me.. but I'm not going to compare those numbers with a 5kw motor at 40mph .. understandably, the watt hours will be considerably more with a 3/4/5 kw motor
        Alpha One 6000W tadpole e-Trike (Cyclone): https://www.youtube.com/watch?v=oFC8MRwvgUM
        Alpha Two Cyclone 3000W tadpole e-Trike: https://www.youtube.com/watch?v=fkakVw8yY8E
        Electric Cyclone 3000W eBike "power mod": https://www.youtube.com/watch?v=_weSmz_h3Ig

        Comment


          #34
          The 20,000 will be great packs but carrying 16, or even 12 lbs on your back for any long periods of time can be tiresome.

          Yes the 10C continuous is more C rating than you'll ever need. I've tried these vs ThunderPower 45C packs and the difference was not worth the triple price tag of the ThunderPowers... The Multistars are also underrated as well, for example my 12,000 are closer to a 14,000 and my 16,000s are closer to 17,000s, so I would expect the 20,000 to be closer to 22,000, so that will even the playing field a little bit, and that puts them at 1465 Wh and maybe 1 lbs less of the total advertised weight as none of mine are as heavy as the advertised weight. The Multistars in some RC groups discussion I read have amazing weight-energy ratio, even better than the 18650s so I think something could be off somewhere.

          As for service life, yes, expect long life: I have 200 cycles on my x2 12,000 packs and these haven't lost any noticeable capacity; they are not as super-duper peppy as when new, but they still have enough punch to get the eBike to 40 mph... Just make sure you don't deep discharge them... and if you do, then make sure you recharge them right away. I've charged them to 4.2V per cell. Do not recharge after using. Wait prior to using them to recharge. Don't recharge if there is capacity left. Make sure you recharge when they hit 3.6ish; you can theoretically push them down to 3.0 volts per cell without ill effects but without cell voltage cutoff I wouldn't dare to push it below 64 V on 18S.

          As for charger I have two chargers: a Reaktor 300W AC/DC and a Reaktor Dual channel 300W. To feed them I have an 1800W PSU to which I plug all three, so I can charge my 18S pack in 3 hours at 900W (all three chargers at 300 W each) These have served me well since I started... I also have a smaller 250W Reaktor that I use for other RC packs...

          G.
          Alpha One 6000W tadpole e-Trike (Cyclone): https://www.youtube.com/watch?v=oFC8MRwvgUM
          Alpha Two Cyclone 3000W tadpole e-Trike: https://www.youtube.com/watch?v=fkakVw8yY8E
          Electric Cyclone 3000W eBike "power mod": https://www.youtube.com/watch?v=_weSmz_h3Ig

          Comment


            #35
            I see what you are saying about your post getting lost. My long post is now gone, along with your 2 previous posts before mine.
            Now I see the response above, which I assume is the post you had mentioned was "lost".

            Being so new here, I do not know to whom's attention this should be brought. One of the upper level mods needs to be notified.

            Comment


            • gman1971
              gman1971 commented
              Editing a comment
              Yes, I think we are all technically new here... this forum is fairly new and I am sure they are still working the issues out... I think Eric or Louis would be the people to notify about it from your end as well.

              G.

            #36
            Originally posted by RageNR View Post
            I see what you are saying about your post getting lost. My long post is now gone, along with your 2 previous posts before mine.
            Now I see the response above, which I assume is the post you had mentioned was "lost".

            Being so new here, I do not know to whom's attention this should be brought. One of the upper level mods needs to be notified.
            I will be notifying Eric about this matter as well.
            Alpha One 6000W tadpole e-Trike (Cyclone): https://www.youtube.com/watch?v=oFC8MRwvgUM
            Alpha Two Cyclone 3000W tadpole e-Trike: https://www.youtube.com/watch?v=fkakVw8yY8E
            Electric Cyclone 3000W eBike "power mod": https://www.youtube.com/watch?v=_weSmz_h3Ig

            Comment


              #37
              I started a topic over in the Report Problems section. Was not sure how to contact those mods you mentioned.
              Link to said topic in case you want to add your input: http://www.electricbike.com/forum/fo...s-disappearing

              Comment


                #38
                Hey Rage, you should post your eBike progress.
                Alpha One 6000W tadpole e-Trike (Cyclone): https://www.youtube.com/watch?v=oFC8MRwvgUM
                Alpha Two Cyclone 3000W tadpole e-Trike: https://www.youtube.com/watch?v=fkakVw8yY8E
                Electric Cyclone 3000W eBike "power mod": https://www.youtube.com/watch?v=_weSmz_h3Ig

                Comment


                  #39
                  Carl Clark., hey bud, you should post how you made your mount so others can benefit from that. I will merge your post onto the motor mount thread.

                  Thanks!

                  G.
                  Last edited by gman1971; 07-11-2016, 10:21 AM.
                  Alpha One 6000W tadpole e-Trike (Cyclone): https://www.youtube.com/watch?v=oFC8MRwvgUM
                  Alpha Two Cyclone 3000W tadpole e-Trike: https://www.youtube.com/watch?v=fkakVw8yY8E
                  Electric Cyclone 3000W eBike "power mod": https://www.youtube.com/watch?v=_weSmz_h3Ig

                  Comment

                  Working...
                  X