Mid Drive Kit:500W/750W/1000W Ebike Motor Kits, BBS02B HD Mid Drive Ebike Conversion Kit with LCD Display& Battery

I installed it on my 2010 Trek 700 so that I can have assistance on a bike with ergonomics I already know I like. Now I have tons of power to get assistance whether it's going up a gentle grade, against wind or up a steep long hill, or accelerating from a stop. Play around with the gear you use relative to the assist level to get smooth rather than intermittent assistance. I still have not figured out how the bike speed and cadence alter motor output but am getting smoother output after couple of weeks of almost daily use. It's a different feel than the previous Bosch pedal-assist bottom bracket motor that was on my cargo bike I sold--in part related to the throttle feature which leads to a brief assist on the chainwheel even after a I stop pedaling. I recommend watching a couple of different online videos to get helpful tips on installation, which went smoothly. I got the 48V750W68MM motor kit, 42T sprocket (mostly just to match what I already had on the bike), 500C display, brake levers/sensors for my old-style V-brakes, and the downtube shark battery 48V13AH. I installed the headlight that came with it too. I was hoping by getting the cheaper battery it would be smaller because I do not need a lot of storage for long distances but it's still big. To make the battery fit, I had to put it on the water bottle bolts on the downtube in the opposite orientation. The speed sensor and magnet for the rear wheel also required some time to figure out an orientation where the magnet on the spoke would not hit the sensor on the frame--must have been something about my frame. I highly recommend this kit. Everything appears to be high quality and hopefully will last a long time.

Love it! I converted both my wife’s and my own GT mountain bikes with Befang 750W kits about a year and a half ago. I’m on the bigger side so I opted for a larger battery. They run great! Man, do they fly! On trails, you don’t need to hit level 5 to satisfy your “need for speed”. Level 3 should prove exhilarating enough. Don’t believe the hype about ease of installation. If you’re not handy, consider hiring someone who is to perform this conversation for you. This is coming from someone who handles almost all my my family’s home & car maintenance/repairs.

I received the Canbus bbs02 750 watt model. Installation was was straight forward but because I purchased the rear rack battery it required some modefication to fit my bike but I had the tools and was able the make it work. I was truly amased with the power of this model. One thing I dont like is the thumb throttle hesitates once you get going and let off the throttle then it hesitates when the throttle is pressed again. Makes the bike unpredictable as you slow down for a corner then wait for the throttle to engage, its a bit scary when it comes on at the wrong time. It seems the throttle is all or nothing. I keep Pedal assist at level 1 as the higher levels are unpredictable. If the speedometer is correct It reached 29mph on pas level 5. The motor is very quiet which I like. The power is great, more power than I need actually. I have purchased a new Twist throttle in hopes the new throttle will be more responsive. Overall I am happy with the quiet linear power when it engages. The installation was not difficult. Im glad I bought it and will enjoy my bike more now.

I put this on an old mountain bike I've had for a long time, and love it. I took it on some rough trails, steep and rocky, and it kept me going where I could never have without it. I got the 500W motor since it is lighter and requires a lighter battery and uses less power. On the display, it shows it outputs over 700W at times, and has plenty of power. Installation was not bad, the hardest thing was removing the existing bottom bracket. On first ride, it made a lot of squeaking when under stress, so I had to really wail on it to tighten up the bottom, and after that it was okay, still makes a little noise sometimes at low rpm under stress, but quiets down if I downshift to increase rpms. Great improvement for an old bike, would recommend to anyone!!

Had bafang motor for six months and broke.Crankshaft freely spins and bike won't go nowhere. Left me stranded 5 miles from home

I am doing my third build using this motor. There have been no issues, each kit was complete and everything worked. Customer service is great. I would highly recommend adding the gear sensor. If you do that, buy a new derailer cable, it makes the job easier. BE ADVISED that the brake levers that come in the kit will work poorly, if at all , with Vee-Brakes. You will need to get VEE-BRAKE ADAPTERS. $16 each, need two. Also get two new brake cables. MTB not Road cables. All this will make the build easier.

Take your time installing. Expect to learn and re adjust. I think I will use mine and not re program limits. For now.... This product successfully got me back on a mountain bike after years of no riding due to severe leg break at knee. Very fun. If rider is not mechanically inclined expect to be stranded on occasion. Many moving parts to confuse those not inclined to the wrench.