Announcement

Collapse
No announcement yet.

Edge 1500 on an Electra Fat

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

    #31
    Originally posted by calfee20 View Post

    I would like to hear more about your bike. I have been wanting to combine a BBSHD and a hub motor on the same bike but not with the hub motor on the front wheel. Can you get them to work together?
    I did a writeup here on it.

    https://electricbike.com/forum/forum...placement-bike

    Feel free to ask me anything although you may want to do it over there to keep your own thread from suffering from too much cross pollination. No worries either way.

    Interesting you bring up a BBSHD + hub where both are on the back wheel. For me, the hub+BBSHD has been so successful I have been toying with the idea of a 3-motor bike using two small motors as helpers to totally eliminate the mid drive's shock to the drivetrain - the front works very well as that. And I think my experience so far with a commuter/cargo AWD both as dual hubs and hub+mid drive have both been very successful albeit for different reasons. I would not want to do without front motor power.

    What I've been thinking of is Bafang mini hub motors front and rear, which would let me use small KT 20a HIGO controllers which in turn would let me split off PAS easily since I have already successfully done this. A nice hot rod BBSHD rounds out the package and ensures the bike can go anywhere... without killing the parts on itself.

    But I am concerned with putting a hub motor on the back because I am worried that the mid drive will put so much torque on the freewheel or cassette that it will tear the motor apart.

    Comment


    • calfee20
      calfee20 commented
      Editing a comment
      Thanks! You know I missed this and I don't usually miss much on this forum.

    • MoneyPit
      MoneyPit commented
      Editing a comment
      I just now edited it in one spot and posted up an update.

    #32
    The sun came out so I was actually able to test some of my upgrades. The PAS is working now with ten levels and 1500 watts max but I have to change some settings to smooth things out. I will have to watch a couple of the appropriate videos from Grin.

    I installed new brakes. I used Avid BB7s with Shimano ICE tech rotors. 203mm in the front and 180mm in the rear.

    Click image for larger version

Name:	2018_04_07_17_02_43_ProShot.jpg
Views:	1
Size:	163.2 KB
ID:	61493

    The rear works perfectly but the front shudders and makes the fork hop a bit during hard braking. I will blame this on the Electra flexi front fork. I wonder if I can find a stronger replacement. Maybe something with triple trees.

    I put 20 miles on my ghetto Stans no tube installation and so far everything is fine. I tried the Stans on a 26" X 2.35 Big apple but it doesn't seem to want to hold air so far. I may have to ride it around to get it to seal.

    Comment


    • g725s
      g725s commented
      Editing a comment
      Yeah, don't think the front fork was designed with bigger tires, more weight, more power in mind. It's a beach cruiser that was designed for slow laid back cruising.

    • commuter ebikes
      commuter ebikes commented
      Editing a comment
      I used to own that wheel!

    • calfee20
      calfee20 commented
      Editing a comment
      I had your other wheel with the factory Electra 3.5" tire on it holding up my Luna cargo frame. Well I had a slow leak on this wheel so I pulled a quick swap to go on a ride today. The Electra tire has a smaller contact patch and it actually improved my watts per mile. The bike was a little quicker steering and easier to handle.

      I like it...……..calfee

    #33
    This bike is now my main ride. I have been searching for nice easy fire or farm roads going through the woods For me this is about as extreme a trail that I would like to go on. You can all commence laughing now. This kind of trail is hard to find around here but I am going to work at it.

    Click image for larger version

Name:	WP_20180605_12_00_56_Pro.jpg
Views:	1
Size:	259.5 KB
ID:	66366

    I have actually purchased a suspension fork for another bike I am working on.

    Comment


    • Tommycat
      Tommycat commented
      Editing a comment
      Ahhhhh, quiet competent non-stress hub motor, peaceful, scenic views... I feel calmer already. :-) And save that picture for your 2019 calendar! Nice!

    #34
    Since I can't sit still I got a new motor for this bike. I got a 45mm Mxus motor from West Coast Cycles. http://west-coast-electric-cycles.my...oto-rim-no-kit I was lucky to buy it before a huge price increase, probably due to the tariff. I mounted a 30+ year old Dunlop K81 from my Norton days that was hiding under a bench in the barn. I kept everything the same wiring, battery, and controller. It bolted right up. I only had to file my dropouts a touch.

    Wow what a difference. My Cycle Analyst recorded a max amp of 77. The bike rushed up to 40mph before I shut it down. The bike was very stable but I wasn't comfortable with the high seating position as compared to my old Nortons. Maybe I will get a seat post dropper but then I will lose my body float.

    To be fair to the Edge 1500 it was at a huge disadvantage laced to a 4 X 26 inch fat tire. The smaller motorcycle tire made me lose 1.5 inches of pedal clearance and I lost pedaling speed. So I installed a 140mm crankset and a 60 tooth chainwheel. The other day I made it to 29mph before I spun out. That took about 1300 watts in the PAS. Great for going over a narrow causeway where the speed limit is 25.

    I lost some range. I was getting about 25 watts per mile with the edge but now I am down to about 29 watts per mile. Then again I am usually testing some high wattage situation a couple of times per ride. Maybe it will be better when I calm down. I have to be careful now with the throttle because unless I have my weight firmly on the saddle when I start off it wants to pick up the front wheel. Actually it is a good thing I set up this bike with two throttles. The left one goes into the cycle analyst that has been adjusted to tone things down but the right throttle goes straight to the controller for full power and response..

    Click image for larger version

Name:	WP_20180901_11_48_40_Pro.jpg
Views:	1
Size:	284.8 KB
ID:	72910

    Comment


    • g725s
      g725s commented
      Editing a comment
      How does the rear hub motor climb hills compared to the Bafang Mid Drive you first put on this frame?

    • calfee20
      calfee20 commented
      Editing a comment
      You have to ride on a bike with a BIG hub motor to understand how great they are. The BBSHD will do 1500 watts while this hub motor will do well over 5000. I have not tripped the BMS but I can take it right to it's limits.

      I ride this bike much like all of my others. I set the PAS to 500 to 800 watts and just pedal around. I usually stay under 20 mph but there are a couple of narrow roads that I need to take the lane and stay with traffic. Going 30+ in these situations is not a problem.

      I do not have hills the way you do. All of my bikes have made the hills I have go away. If I am pedaling with 600 watts of PAS on the flat I will be going a little under 20 mph. If I then come to a hill I will slow down and downshift but if I don't want to slow down I just pump up the PAS or use the throttle.


      I have not gotten this motor hot but I have gotten the BBSHD hot, trying to do 30mph. There is no more than leg power going into the drive train so shifting is smooth and easy. I know it would fly up just about any hill. The question would be whether a long enough hill would overheat the motor. You might have some hills that will tax it but I don't.


      A BBSHD will be the best bet for true single track and if you are looking for the best efficiency. Their PAS is also the best I have used.
Working...
X