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(SOLD) BBS02B 750W 48V Color Display Gates Belt Drive Avid BB7 Brakes & Rotors

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    (SOLD) BBS02B 750W 48V Color Display Gates Belt Drive Avid BB7 Brakes & Rotors

    — SOLD —

    Like the title says, I'm selling off my extra Bafang BBS02B 750W 48V Mid-Drive with Color Display in KIT FORM for a Gates Belt Drive application (55T X 24T Gates sprockets, plus original steel chain ring, 48T). Avid BB7 brakes and rotors with cables all hooked up are included (needs new brake pads). Everything for $500.

    ---OR---

    $400 without the two Gates beltrings or 130BCD adaptor for a chain drive application
    .

    I prefer a local CA$H deal here in Southern California (I'm in Anaheim). May consider shipping at your expense if it doesn't sell quickly, but only after CA$H is in my hands (not sure how to do that, so pickup is better).

    Here are pictures of everything... (no battery included)

    Cheers!

    PS: If you are local and need assistance installing the kit once purchased, I will be happy to help you install it for $100 more at my home in Anaheim. CA$H payment has to be made upfront with no refunds after time is invested (understandable).
    Attached Files
    Last edited by Rider; 09-20-2018, 03:19 PM.
    2020 Banshee Paradox (pedal)...
    2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
    2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
    2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

    #2
    I have a Trek SOHO Deluxe with a 55T Gates Belt and 8 spd IGH. I am interested in purchasing your kit. I can drive to Anaheim to purchase. I like your idea of helping to install it. I believe my BB is 69 mm. I have been interested in a Bafang mid drive kit and want to keep my belt drive. I am concerned about the clearance with a 55T ring and the chainline.

    Comment


      #3
      How do you plan to align the front beltring with your 8spd IGH?

      You can read through my Soma B-Side thread to find out what the offset from frame center is for the current adaptor and beltrings on this motor. I don't know what your 8spd IGH chain/belt line is. It might require a custom designed front beltring to make it work. You will have to do that research yourself.

      Once you know the offset of the above, then compare that to the offset of your current bike. If your IGH offset is smaller, subtract that from the offset of the above. Then measure the clearance of your 55T beltring to the chain stay. Is there enough room to move it in? If so, you can shave the face of the BB on the right side to move it in to match and you are good to go. If not, then further research regarding front beltring size and custom mounting method will have to be done.

      Good luck.
      Last edited by Rider; 09-18-2018, 08:11 AM.
      2020 Banshee Paradox (pedal)...
      2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
      2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
      2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

      Comment


        #4
        Realizing most people don't have a Sturmey-Archer CS-RK3 or Rohloff rear IGH to install a beltdrive easily, I will sell everything without the 2 Gates beltrings and 130BCD adaptor for $400 and still offer assistance installing in Anaheim, CA for an additional $100 for a chain drive application, but only after payment in full (no refunds).
        Last edited by Rider; 09-18-2018, 08:03 AM.
        2020 Banshee Paradox (pedal)...
        2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
        2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
        2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

        Comment


          #5
          My beltline is 44.5 mm. I reread your build for the Soma and it looks like your kit will increase the beltline to 50 mm.
          Last edited by Gregory Tragitt; 09-18-2018, 03:08 PM.

          Comment


            #6
            THIS IS A POST I MADE IN THE PAST SOMEWHERE:

            Bafang BBS02B belt drive is possible with 68mm (and possibly a 73mm) BB and a wide enough belt line rear hub. Here's my Soma B-Side Gates Carbon Drive build. It has key belt line measurements in it.

            I just made up a quick reference chart for some key Bafang BBS02B chain/belt line issues in preparation for my next build.


            ~55mm = BBS02B on 68mm with current spider adaptor and 50T Gates on the Soma B-Side

            54.7mm = Rohloff 14spd speed hub chain/belt line

            44mm = Sturmey-Archer RX-RK5 5spd (42-46mm range depending on cog)

            ~22mm = BBS02B spider mounting surface to right BB edge

            ~56mm = BBS02B on 68mm BB spider mounting surface to frame center line

            ~58.5mm = BBS02B on 73mm BB spider mounting surface to frame center line

            ~10mm = 42T Lekkie Bling Ring inset from BBS02B mounting surface

            ~12mm = BBS02B BB right edge to 42T Lekkie Bling Ring chain line

            ~46mm = BBS02B on 68mm BB with 42T Lekkie Bling Ring chain line

            ~48.5mm = BBS02B on 73mm BB with 42T Lekkie Bling Ring chain line


            In short, the best rear hub for a BBS02B conversion is a Rohloff with it wide chain/belt line. If a 3spd is desired, the Sturmey-Archer CS-RK3 gives you a rear cassette to align the chain/belt. And, the smallest Gates front belt ring that clears the BBS02B gear reduction housing is a 50T.

            One always has to consider the chain stay clearance as well. If using a 73mm BB, you can face off as much as you can until the BBS02B is right on the chain stay. In order to make a 73mm a 68mm, only face off half the difference or 2.5mm. The left side can stay where it is and you end up with an offset 70.5mm BB.

            If you have access to a machine shop, then you can combine a 42T Lekkie Bling Ring and a Gates 50T to get more inset. This requires machining out the Gates 50T and machining off the Lekkie chain teeth, then heli-arcing them together.

            Hope this helps if you go with a Bafang BBS02B, AKA “The-Silent-Reliable-Gaint” 750W/48V mid-drive motor (I’d keep it stock as designed) that gives “you” total control over settings. IMHO the Bafang BBSHD has too fast of a cadence if you like to pedal; stick with the stock BBS02B with 48V battery. YMMV
            Last edited by Rider; 09-19-2018, 03:48 AM.
            2020 Banshee Paradox (pedal)...
            2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
            2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
            2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

            Comment


              #7
              So this kit as is has a belt line of 55mm on a 68mm BB and you state your IGH is 44.5mm. That gives a 10.5mm difference.

              How far is your current 55T belt ring from the chain stay?

              ADDED: OR I SHOULD SAY THE AREA WHERE THE BBS02B REDUCTION HOUSING GEAR WILL BE (YOUR CURRENT BELTRING ALREADY CLEARS IN ITS' PROPER LOCATION. YOU NEED TO KNOW IF THE BB CAN BE TRIMMED ~10MM AND NOT HAVE THE REDUCTION GEAR HOUSING HIT THE CHAIN STAY. TO GET A GOOD READING ON THIS YOU MAY HAVE TO SLIDE A BBS02B INTO THE BB, BUT A PICTURE WILL INDICATE IF IT APPEARS DOABLE. THIS IS ALL WORK I CAN'T DO IN MY GARAGE, SO INSTALLING IT HERE ISN'T SOMETHING I CAN DO FOR YOU. YOU'D NEED A GOOD BIKE SHOP THAT HAS A BB FACING TOOL.

              Post a picture of your B.B. and beltring from above.
              Last edited by Rider; 09-18-2018, 06:54 PM.
              2020 Banshee Paradox (pedal)...
              2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
              2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
              2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

              Comment


                #8
                I will take a photo in the morning. Thanks for your information.

                Comment


                  #9
                  I have attached the photos.
                  Attached Files

                  Comment


                  • Rider
                    Rider commented
                    Editing a comment
                    Nope. I don't think you will be able to get the beltline in that close with a Bafang mid-drive. If you bike is used as a commuter, you might look into a front wheel geared hub motor. Good luck!

                  #10
                  Thanks for your assessment. I was really hoping that your kit would work out.

                  Comment


                    #11
                    I much prefer a mid drive and like the capability of the Bafang. I looked for other options and suspect if I can't make the belt work, I can change the 8 speed Hub sprocket to accommodate a chain. I think your kit is a great value.

                    Comment


                      #12
                      Converting to chain “should” work on that frame, because a chain doesn’t have to be straight (think of how a chain moves across a cassette without the front chain ring moving). But I always setup all my single speed or IGH chain bikes with a straight chain line, because that insures no chain drops and far less wear on the sprockets and chain.
                      Last edited by Rider; 09-24-2018, 08:45 AM.
                      2020 Banshee Paradox (pedal)...
                      2018 eSurly ECR 5spd IGH 29+: https://electricbike.com/forum/forum...id-drive-build
                      2016 Soma B-Side BD 3spd IGH (pedal): https://electricbike.com/forum/forum...v-custom-build
                      2013 Niner Jet 9 (sold): https://electricbike.com/forum/forum...lectric-assist

                      Comment

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