61 REVIEWS - Lvbu EBike Kit-Brompton
United States of America
, 4/28/2026
Electrified Brompton - I electrified my 6 speed Brompton with the bottle kit. The only drawback is the added weight, but I use this bike for all of my commuting. If you travel I would recommend having 2 of the smaller batteries. TSA is a pain, and is inconsistant. I can go about 35 miles with a fully charged battery.
I have had to engage once with support. They have been great although everything happens via online and email. I have found everyone to be responsive.
I got mine kit in Sept 2025.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: Kn Blue, Blue
This is a great kit, well worth the money. I already purchasedand and fitted a Brompton bottle battery kit and use that constantly, with a spare 6AH battery for days when I need to go further and not get the opportunity to recharge on the go.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: Kn Blue, Blue
I previously had a bottle kit on a Brompton which worked perfectly I had an issue with juddering which lvbu fixed by sending me a replacement controller. time will tell about longevity but my previous kit was still going strong after 2 years of commuting most of the battery issues seem to occur over winter but if you store them charged and indoors not in a cold shed or garage it shouldn't be a problem
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
The latest kits are absolutely great. They work excellent on my Brompton and I enjoy the flexibilty. I have one small and one big battery. They last 60/90 km. The controller allows for a very natural assistance, even without a torque sensor. The LCD-display is worth the extra cost.
Also the online-website is great!
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: Kn Red, Red
The parts appears to be of very high quality. Installing was very easy. Performance has been very good so far and I feel confident that I will have a long and happy relationship with it. I am seriously considering the purchase of a second unit foru wife's bike if the discount is favourable
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
The order process was simple I ended up with a wrong part (my bad) but they sorted it at once. It took a while to assemble I’m not good at following instructions. They were clear and I got there when I followed them closely. I have it on the road now and it rides like a dream
Model: KD30S 250W 9Ah front for Brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
Czech Republic
, 4/2/2026
The bike kit for my brompton has been a success but it's not without it's frustrations. The installation was relatively easy but the instructions are not at all clear ... Now it's on and running it's great but the instructions need a rewrite or clear videos in an install section telling you what to actually do ... if it could go wrong it did for me ...
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
United Kingdom
, 3/30/2026
It's a wonderful kit to have on my Brompton. It's made my commuting so much more comfortable and enjoyable. It is value for money.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: Kn Red, Red
I am really enjoying using my kit on my brompton. Having owned my bike for a very long time but having moved to a very hilly area I wasn't using my bike much. Two weeks in and I am using it regularly. I care for the bike a little better than before. A great bit of kit!
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
United Kingdom
, 3/24/2026
I just love my new kit. An issue with the harness that was preventing the throttle from engaging was quickly resolved with a free replacement part.
Model: KD40S 250W 12Ah front for brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
Fast response
Good quality product
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
The assist is much more powerful than I was expecting. It struggles a little with steeper hills, but otherwise pulls me along just fine. I easily hit the top speed. I'm guessing I won't hit the 60km of range as there are quite a few hills by me, and I love using the throttle for an extra boost. The battery gets a full charge in the advertised 3 hours.
After a previous bad experience with a different company, the lvbu KN20S kit has been a relief and a joy to use. The only issue I've had so far is that the motor occasionally stutters after coming down a steep hill. I'm pretty sure this is due to me passing the max speed of the motor, as it doesn't happen if I slow down before resuming pedaling.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
Great product, we got a Brompton adapter and we’ve really enjoyed using it so far. Fitting wasn’t the easiest process as the online tutorial differs from the printed pamphlet they send, but when we got really stuck, we messaged help desk and got replied fast with a technician who talked us through the fitting. The whole thing is heavier than we were expecting so harder to use the Brompton without the lvbu system on, but overall we’re really pleased with this and it makes commuting incredibly easy.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
This is a great kit: lightweight, easy to install, and quiet. Performance is great.
Model: KD30S 250W 9Ah front for Brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
United Kingdom
, 2/28/2026
I have recently electrified my brompton due to illness and an inability to climb any gradient.
Having aready owned an earlier iteration of the kit I was already familiar with its set up.
For the brompton, the kit has been a godsend. Arrived perfectly packaged, with clear instructions, so the installation was a breeze. With the addition of the led controller I have the ability to manage the power use easily when riding on the flat...the hills in west Yorkshire have all but disappeared!
I went for the saddle battery which has decent range.
Excellent work! would recommend without hesitation.
Model: KD40S 250W 12Ah front for brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
Absolute game changer for my 5 year old Brompton, pure excitement the first time pedal assist kicks in, likewise for all my friends who have since tried it. Very easy to fit, took me about 45 mins with no issues or special tools, ordering service was simple and delivery faster than I expected, fantastic customer support so all in all, great design, very impressed and worth every penny considering the cost of off the shelf electric bikes
Model: KD40S 250W 12Ah front for brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
Order processed straightforwardly and arrived within the predicted dates.
Kit fitted to my Brompton without any issues. All good.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
I LOVE the e bike kit very much. It has made my commute a real pleasure. It arrived early and was easy to fix - my husband fitted it in half an hour and he's not very good at DIY usually! I'm two weeks in and think it's a life changing bit of kit. Delighted with my purchase.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
Easy set up good performance, rather than buy brompton electric bike. Recommend it.
Model: KD40S 250W 12Ah front for brompton, 250W
Size: 16'', 16 inch rim with tyre
Color: black, black
Fitted and worked on my Brompton first time. Straightforward installation, manual instructions good, but I’d advise looking at a couple of the most recent installation videos first (YouTube) to get it right first time. Take your time, especially with the cable routing and controller positioning. Bit surprised how much kick I get from the motor when riding with it. Only one days use so yet to see how much range I get but impressed so far.
Model: KN20S 250W 6Ah front for Brompton, 250W Motor, Front wheel ebike kit
Size: 16'', 16 inch rim with tyre
Color: black, black
