Endless Sphere

Does anybody know if the Sabvoton Controllers are Sine Wave or FOC? FOC is just a type of Sine Wave controller that gets its timing information differently than a traditional Sine Wave Controller. My electronics understanding is quite limited but I am progressing slowly....the Kelly should have more...

Well IMO they both have advantages and disadvantages....when the popularity of the modular motor increases a little, parts should eventually be more available than the current BBSHD, but for now it is going to be tough to beat the BBSHD for the availability of hop up parts and the price of replaceme...

If anyone is concerned about heat, a pic of a temp indicating strip I bought from Wahl is posted at the bottom of this post. I tried to put one directly on top of where the FETs mount in the right hand motor cover and I put one on the left side as well. With the stock 30A controller the 110F did not...

TorEddy...how did the Lightning Rod compare to your BBSHD and what wattage were you pushing thru them? I agree 100% on the cleanliness of the BBSHD installation plus with the controller internal, it is protected. Saw another pic you posted that was priceless...looks like you have a future Electrical...

I don't have any personal experience with them but the Lightning Rod (small block and big block) appear to be a well designed set up. I have communicated with the owner a few times and he seems pretty sharp as well as helpful. If I wanted more power than my BBSHD can deliver, I'd take a serious look...

TorEddy...now that is one nice looking bike/build and I agree with your comment about the build being as much fun as riding. All this talk about shifting...I don't shift at all. 99% of my riding is off road so that is a factor that you have to take into account. Since an electric motor produces max ...

Yes I know I am a late arrival to the party but passing along some personal experience.... I started with a MAC internally geared hub motor because I wanted to ride off road and climb hills...bad idea. You can't get it geared low enough to keep it from overheating...and that is the same for a DD mot...

endrew...excellent question. I forget everybody doesn't have the exact same set up as me. You need a display that shows the wattage or amperage...with the DCP14 color display that EM3ev sells you can select wattage or amperage. I believe most of the black and white displays just have a bar graph wit...

Hopefully this will help you figure out what gearing works best for you. Below is my experience with gearing a Bafang BBSHD. I am running a BBSHD on a 14s6p battery (58.8v fully charged) with a rear tire that has an outside diameter (OD) = 725mm (28.5 inches). I have a 28 tooth front chainring and t...

Yes, I know this is an old thread but wanted to throw out a little helpful advice. Probably going to start a new one with a title like "Gearing a Bafang BBSHD Top Speed and Off Road"...just so it shows up when somebody is searching for gearing info. When people are talking about gearing they need to...

LATE BREAKING NEWS AND WHY NOT TO USE A FAT TIRE BIKE FRAME ...well at least one with 190 mm Over Locknut Dimension (OLD)/ rear spacing. I stick with my recommendation on the Mongoose Terrex for two main reasons.... 1. The frame is steel and very strong. 2. Mongoose has been very helpful and wonder...

Chalo...excellent point, very true, and good advice on how to avoid the problem.

Your description is exactly what I do...after figuring it out by trial and error, lots of error .

Thank You

Thought I should post the "Correct" way to adjust brakes...my advice in the first post is what works for me and my cable operated disc brakes but before you try it you should know the accepted way to do things. For Hydraulic disc brakes...Park Tools has some good instructions: https://www.parktool.c...

Chalo...tell me a little about the TSDZ2, please. Is it about the same power level as the BBS02? I am going to consult Mr. Google as well. EDIT...found this on the TSDZ2: https://www.biktrix.com/products/tongsheng-tsdz2-torque-sensored-diy-ebike-mid-motor Says that it is a pure pedal assist, no thro...

gogo...THANK YOU. There is no easy way I can think of to move the chain backwards to activate the kick shift. Just when I thought I had a good idea....oh well. At least I have a back up plan...go with a 3 speed Sturmey Archer hub, the one that accepts a disc brake and has a 9 spline driver so I can ...

Does anybody have experience with the Sturmey Archer S2K 2 Speed Kick Shift Disc Brake Rear Hub? Or more precisely, has anybody tried it with a BBSHD? Any words of wisdom, advice, experiences, etc....would be greatly appreciated. I am considering doing a build with a BBSHD, a Bikes Direct bike with ...

Does anybody have experience with the Sturmey Archer S2K 2 Speed Kick Shift Disc Brake Rear Hub? Or more precisely, has anybody tried it with a BBSHD? Any words of wisdom, advice, experiences, etc....would be greatly appreciated. I am considering doing a build with a BBSHD, a Bikes Direct bike with ...

May be too late for me to influence your decisions but the Mongoose Terrex is a good choice to start a build with....steel frame, disc brakes front and rear, accepts 3.0" wide tires. Most big box store bikes are dangerous if you use them for an ebike build. There are better bikes but none better for...

Please don't misunderstand my wording and intent....I just want to share what I did and if anyone would like to copy it or learn from it then great. If you want to do something totally different, that is up to you and fine with me. The only mistake I feel like I made along the way was selecting a MA...

...but will I be able to go 50mph? :wink: Heck yea. 50 mph is a piece of cake...right after I drive off a cliff :D . Actually the MAC powered Terrex with the original 27.5" wheel and a 14s battery fully charged to 58.8v will do an honest 34 mph on flat ground with no wind and me laying almost horiz...

There is no best or, there might be a best for yourself, until you find better. Different builders have very different requirements. Riders are riding very different terrain, distances, conditions, speed... Best for one, may be the worst to another. Agree...BUT for getting started and building your...

efMX....the procedure you posted is what is recommended in my owners manual and it truly does center the disc in the caliper. My sincere thanks for posting the info on how to properly do it. On my brakes, they seem to work a little better if the gap between the inside pad and the rotor is a little l...

Mechanical cable operated disc brakes can work fairly well if you keep them adjusted properly. Below is the procedure I follow to keep mine as tight as possible without dragging. This is mainly for relatively inexpensive cable operated brakes. Some of the higher end mechanical disc brakes like the A...

Well the Mongoose Hitch is working great but I readily admit that in the long run most people will want to upgrade the components. The frame is rock solid and I have had absolutely no problems with the steel frame...below is a list of things I have changed and things that have stayed stock: A. Frame...

Here is a simple explanation that hopefully everyone can understand. A. Trapezoidal commutation generates torque ripples at low speeds and is relatively efficient in the high speed range. Noise takes energy to make and the louder it is the less efficient it is. Trapezoidal control is relatively simp...