BAFANG BBS03 BBSHD 1000W 48V Mid Motor Ebike Kit with Lithium Battery 48V17.5AH for Bike Conversion

Product Information

It provides huge torque levels (160NM), high efficiency and low noise levels. Please read our fitting guide here. We ship the controller with 9 power levels that can be independently set by yourself via the display. Maximum available power (48/52v) is 28000W and 3250W for 72v set up. This mid drive motor is made by Bafang, and often distributed as an “8fun” motor. They’re the same thing.

The motor is built to take much more than the 30A that it is limited to. In fact, Luna Cycle sell controllers that can handle 60A and up to 72V like this one here! This is truly plug n play and expect RELIABLE speeds of around 40+ MPH (Depending on Battery choice) Note: Not all options may be visible, if a particular size is sold out it may be auto hidden. If you have any questions let us know We have tested the BBSHD to destruction and on more than one occasion right up to 4500 Watts and learned a few things, real facts and not the odd exception. Automatic sensored to sensorless transition which gives you addition 15% top speed and better performance

Next-gen powerstage design maximizes the cooling surfaces while minimizing MOSFET junction-to-ambient thermal resistance. Please note that as authorized ASI dealers all product support is provided by High Voltage. ASI will not support High Voltage customers directly. In the unlikely event of an issue which requires ASI technical expertise, High Voltage will undertake that communication with ASI on the customers behalf. Availability / Waiting List! / No Deposits

What this translates to is the BBSHD will produce more torque, have better heat dissipation (and reliability?) and produce more peak power. Bafang BBS02 vs BBSHD Power Comparison Bafang Model I am not sure how Karl shredded his gear so easily….. but my guess is he was using a controller that was not properly tuned for the motor which caused it to get excessively hot too fast. But here it gets even better, Change your battery and go up to 20s 72 V (any voltage form 10S to 20S, 36V -90 V) and the controller takes it (not a Bafang originated 60 V cap). Your watts have now jumped to a dangerous 4200 watts on a “hot” (fully charged battery at 84 V), so we reduce this limit to a safer 3250W, but still so much powwweeeeer! The BBSHD motor is waterproofed for normal UK use. In other words they are fine with rain, frost, snow and mud. However it is not designed to be submerged in water. This firmware is intended to replace the original Bafang firmware on the BBSHD/BBS02 motor controller. Almost all functionality of original firmware has been implemented and additional features have been added.I’ve never had an issue with it. Even climbing 10-15 degree slopes at 13mph (21kmh) it’s never gotten too hot. The motor would get hot creeping up to 300 degrees Fahrenheit but kept going strong. We took a few breaks to let the motor cool down….and resisted the temptation to really test it to see what it would take. Lightweight and powerful! (Motor weighs 13 pounds and whole kit with all parts will add ~16 pounds to your bike. Using high PAS in a high gear under heavy load may cause the controller to overheat (power level 9 in a small rear cog). Gears should be used going uphill or any other heavy load.

I have a standard BBS02 500w on my Straggler light touring \ commuting bike which is more than enough for a 20mph commute to work (and I’m a heavy rider) or a low PAS tour. Put simply the BBSHD is more robust than the BBS02, produces more power, but most importantly more torque and much better heat dissipation. Incidentally the ‘HD’ stands for ‘heavy duty’. The HD is also nearly 1kg heavier than the 02, and physically slightly larger. BBS02 or BBSHD – Which is More Reliable? The Bafang BBSHD mid-drive motor conversion kit is one of, if not the, most powerful conversion kit you can buy. With its 30A controller, you can squeeze more than 1500 watts of power out of this brutal machine! With this amount of power, you can reach incredible speeds, climb any hill, and accelerate like no other ebike can. In this review, I will tell you all the things to like and not to like about Bafang’s flagship BBSHD mid-drive motor conversion kit. This installment will focus on the installation and configuration of an ultra high resolution (4K and 30fps) DIY front and rear bicycle dash camera system. DIY Bicycle Front (And Rear) Dash Cam, Part 1 Plus using the sine wave Adappto the motor should run more efficient and cooler than running a Chinese square wave ebike controller.

Enter The BBSHD

Both controllers have a maximum operating voltage of around 60v. This leaves little margin for error when using a 52v battery. 52v batteries fully charged will produce 58.8v, but I have tested some with a multi-meter and seen over 59v on occasion. A 48v battery will produce 54.4v fresh off the charger – this leaves a reasonable buffer zone. Karl blew out his nylon gear which may very well be the weak point in the bbshd, and he did so riding at top speed until his drive got hot and seemed to have melted the gear. For lights powered from the main battery, you may want to consider the CYC or EBC high-power light sets. They both have a handlebar mounted switch to turn the headlight on and off. The CYC headlights have two separate lights that each mount directly on the handlebars. The EBC Headlight includes low-beam with horizon cutoff, high-beam, and running lights and mounts on the front stem bolts freeing up handlebar space and not interfering with the ebike display. Both lights are brighter than most car headlights.

Interestingly, with both my Mongoose Envoy Project and Surly Big Fat Dummy Project, I found whatworked great for me on other BBSHD-equipped bikes was completely ineffective on a cargo bike. I frankly haven’t figured out why this is, but I think it may be because my older builds were just that: Older. Something maybe changed in the firmware. My PAS settings that conserved major amounts of power while pedaling wound up being totally inadequate. I needed to step up some settings, which I will describe below. While my settings then vs. now are quite different, I don’t see any real penalty in range. Improved efficiency due to FOC algorithm, premium internal components within the controller (like the mosfets) which increases efficiency while reducing heat lossesWe are only offering the Ludicrous Upgrade to customers who will use the bike off road and private property only, and only to loyal former customers who are familiar already with the power of this type of mid-drive.