It's sort of like a lightweight geared hub motor but without the shell to protect the grease from becoming contaminated pretty rapidly.
I imagine it would be a huge pain to constantly regrease it
Why would the website go away eventually?Some images as an archive for when the site eventually goes away
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It is not a friction drive, so friction losses are almost nonexistent. It is constructed from aviation-grade aluminum, with no plastic components in the drivetrain.It looks to me like the driven "gear" is a belt sprocket and the motor moves an inside-out toothed belt against it. So contamination from the neighboring chain would be an issue, but the unit itself wouldn't need lubricant. And it will of course have some hysteresis and friction losses because rubber + plastic + grime.
My name is Aram and I'm the engineer and inventor behind BikeOn Drive. Please let me know if you have any questions.BikeOn
BikeOn is a device that turns any bicycle to a smart e-bike in less than 30 seconds. No tools, skills or bicycle modification required.bikeon.com
this is completely new to me and so bizarre looking. but much more legit than some other vaporware kits ive seen. thoughts?
Yes, BikeOn works with any number of speeds (sprockets), including 12 speed cassettes.Aram, thanks for joining the discussion. I watched your installation video and saw that the motor clamps around the largest rear cog, and the current cog fitment range appears to be, 25, 28, 30, 32, 34, and 36 (via individually available sized rotors).
Does the derailleur stop screw then need to be readjusted to bypass the largest cog, and does your system work on more modern 9 to 12-speed systems - versus the 6-speed demo bike, which there are lots of around in garages?
Here is a video which shows the noise level:Dear Aram, Do you have any sound recordings of the powered bike moving along under normal loads? I am interested in quiet operation.
I am a little perplexed by the belt. It has both much tighter bend radii than are customary for toothed belts, and it's being used inside out, so without any of the benefit of capstan effect. And it's quite short relative to the overall system scale. I imagine that all three of these factors significantly shorten the belt's wear life and increase friction and hysteresis losses (which might be low relative to a V-belt, but are much higher than gears or chain even when the toothed belt is used normally).The device is pretty quiet. One of the reasons is usage of timing belt transmission: it is a low noise, reliable and does not require any lubing or other maintenance.
I have to disagree here. The wrap angle is smaller than in usual applications, but the effect is still in play.without any of the benefit of capstan effect
We use very high quality belts, which are not made of pure rubber. Some of the best and expensive bicycles use timing belts-for a reason.rubber belt in proximity to a roller chain
I appreciate your perspective. There is much more than just a mechanical engineering in this device:Overall this seems like it would be a good undergraduate project in mechanical engineering, but I'm not surprised we don't see other examples like it.
> - Easy to adapt to any bike.
My non-ebike has a Nexus IGH - so only one cog in back. If I have to give that up to the motor, I'd have no where to put the chain I use for pedaling.
Thank you very much for your detailed comment. I am pleased to address some of your concerns.Gotta be honest with you and i hope you can take some productive criticism and do something with it.
This is all based on first impressions.
The mounting system includes three robust points, all meticulously calculated and tested across various usage scenarios. I will create and share a video here soon to provide a detailed demonstration of the mounting process.- The mounting doesn't look sturdy, i'm wondering if it flexes significantly under load which may affect the longevity of these aluminum parts.
Most bicycle transmissions, including those with belt drives, are exposed. Our product is designed for simplicity and ease of use, and is not intended for DIY servicing. We advise against disassembling it. The compact and lightweight design allows for easy shipping to us for service if needed. To date, we have not encountered incidents of rocks or debris causing damage to the transmission.- Exposed transmission looks like it won't be durable in the long run, all parts look proprietary and non-user serviceable. Transmission parts such as the belt are not available on the website. What happens when an errant rock or piece of scrap metal gets in the transmission and destroys multiple parts of it?
U.S. regulations mandate that all e-bikes must stop assistance at 20 mph unless equipped with a speedometer. Therefore, our app includes a speedometer to enable assistance up to 28 mph. We do not collect any personal data, such as real names (you can register under any name or nickname), addresses, phone numbers, or anything similar. The only data the device collects relates to the ride itself, which is necessary to operate the device and provide the user with information about the ride, such as torque sensor data, speed, and accelerometer and gyroscope data. This information cannot be traced back to any specific user.- Requires cellphone to operate at full speed, concerned there might be privacy implications due to that. Account creation seems required. Privacy policy on the website only covers the store, not the app. Companies usually force apps on users to enable collecting data on that user and we get no assurances about what data is being collected and what risk this poses when that data is eventually leaked.
Users who seriously consider purchasing geared motors for $150-$500 are probably not our target customers. Here's why:- It's competition is a geared motor which can be purchased for $150-$500, so the value proposition isn't very good.
I'll make a video under load. I don't have such a video at the moment, but we have nothing to conceal, so I'll make it and post it here shortly. We offer a 14-day return period, no questions asked, so if someone is concerned that the device is loud, it's possible to try and return it. We are not just looking for sales; we are looking for happy customers who will use the device and enjoy it.- We asked for a video under load to assess noise, but got a no load test instead ( a condition where the motor will be quieter ).
The mounting system includes three robust points, all meticulously calculated and tested across various usage scenarios. I will create and share a video here soon to provide a detailed demonstration of the mounting process.
Most bicycle transmissions, including those with belt drives, are exposed. Our product is designed for simplicity and ease of use, and is not intended for DIY servicing. We advise against disassembling it. The compact and lightweight design allows for easy shipping to us for service if needed. To date, we have not encountered incidents of rocks or debris causing damage to the transmission.
U.S. regulations mandate that all e-bikes must stop assistance at 20 mph unless equipped with a speedometer. Therefore, our app includes a speedometer to enable assistance up to 28 mph. We do not collect any personal data, such as real names (you can register under any name or nickname), addresses, phone numbers, or anything similar. The only data the device collects relates to the ride itself, which is necessary to operate the device and provide the user with information about the ride, such as torque sensor data, speed, and accelerometer and gyroscope data. This information cannot be traced back to any specific user.
Users who seriously consider purchasing geared motors for $150-$500 are probably not our target customers. Here's why:
1. BikeOn offers easy removability. Our customers typically do not want to permanently modify their bikes. They seek easy and sometimes temporary solutions that they can use intermittently or interchange with other bikes.
2. Our customers are conscious of the weight they add to their bikes, so they prefer something lightweight like BikeOn.
3. Unlike inexpensive geared motors, BikeOn is made of aviation-grade aluminum and other high-quality materials.
4. For many of our users, smart features and a built-in torque sensor are important—these features are not available with inexpensive geared motors.
5. The device has built-in capability for over-the-air updates, so it always uses the latest of our developments and features, unlike cheaper options.
I'll make a video under load. I don't have such a video at the moment, but we have nothing to conceal, so I'll make it and post it here shortly. We offer a 14-day return period, no questions asked, so if someone is concerned that the device is loud, it's possible to try and return it.
We are not just looking for sales; we are looking for happy customers who will use the device and enjoy it.
Yes. The working range is 36V to 48V.Will it work with a 48 volt battery?