Output Power: That’s what we really care about. It’s the power that comes out from our motor that we can use to go fast, carry loads, go uphill. This power, as for a car, is not constant through time, it depends on how much we push on the accelerator, on the road conditions and on the motor’s RPM.
If you ride a bicycle a lot, chances are you’ll eventually need some replacement parts. We stock Original Equipment Manufacturer (OEM) Parts for all of the electric bikes, folding bikes, and scooters in our store. We also have a number of generic replacement parts like inner tubes, batteries, and drive belts available to get you back on the road.
Bosch, the most prevalent purveyor of motors for the electrified contingent, reigned supreme as mid-drives dominated the scene; similar versions of their motor were promulgated by Brose, Yamaha, TransX and Shimano, all promising that their system was superior. One of the more interesting mid-drives was a coaxial motor produced by eProdigy, available on a variety of their bikes. Many manufacturers distinguished their e-bikes from the others with options for very large capacity or piggy-back batteries promising ranges which were unavailable previously.
The GNG catalog lists this kit as the “450W brushless“. The second mid-drive on our list, is also a kit that can be added to just about any bicycle frame that you like (maybe 90% of them?). See our article on this awesome drive, here.
This drive is new and is VERY similar to the recently popular Bafang BBS02. This pic was taken at the April 2014 bicycle show in Shanghai, China. Pic thanks to ES member d8veh. On Alibaba, these have been seen being sold under the “BTN” label (Back To Nature). Thanks to the German pedelecforum.de member “airbox” for the link. Danke Schoen!
I hope you did not, because that wouldn’t be a good idea: you’d probably waste a lot of gasoline in acceleration and your engine would not be happy at all! But that’s what happens constantly with most of the existing electric bikes in commerce.
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I have a Stromer ST1 and I just got my wife the Optibike Pioneer allroad. We both are short (5’6″ and 5’4″, 150 pounds and 100 pounds) but we pull our sons in the Weehoo Trailer. So that adds another 60 pounds. We have very steep hills in our area. We just took our first ride with the optibike and it feels like it has about 1/2 the power on the steep hills as the Stromer. I thought the mid motor would do better on hills (optibike is 500W mid mount, stomer is 600W rear hub). Can you help me understand this and help with a better option for more power? Thanks! Oh, and I should add. We want peddle assist and throttle modes.
It’s what’s inside your motor that sets it apart from the rest. Quality parts and assembly We’ve written here before about how to choose a motor, the different types of motors, the performance differences between motors, etc. But today I want to show you what makes our motors different from other hub motors. Today, harry is replacing the axle on a customer’s direct-drive motor. The bike was crashed and the…
As we transition into mid-drive systems, imagine this scenario. A rider with a hub motor driven electric bike approaches a very steep hill, stops completely and then uses a twist throttle to power forward. The motor is likely going to struggle because it is designed for relatively flat surfaces and provides “peakey” output as mentioned before. So the motor groans and slowly pushes the rider forward. Without pedaling along, most hub motor designs just cannot carry an average sized passenger up a steep incline from rest. This is where we get into the benefits of a mid-drive system.
And that’s the majority of the electric bicycle parts that I buy on a regular basis. As I think of more ebike parts that I’ve left out I will be sure to add them. I’ll also update as I find better prices in the future.
The Stromer ST1 uses a direct drive hub motor (like Bionx) made by the Taiwanese company TDCM. TDCM focuses on the development and production of electric drive systems for electric bikes as well as for other applications—including medical devices, starter systems, and wheelchairs, to name a few.
Currie Technologies® has been making high quality electric bicycles, electric bicycle kits, and electric scooters since 1998. Between 2005-2008 Currie® made electric scooters and electric bicycles for Schwinn®, Mongoose®, and GT®. The electric scooters made for these three bicycle companies are identical to the ones Currie® sold and their parts are completely interchangeable. Older pre-2005 model Currie® electric scooters and electric bikes have brushless motors with built-in speed controllers while newer models use brushed motors with externally located speed controllers. Most Currie® scooters and bicycles run on either 24 Volts or 36 Volts and most models use multiple 12V 12Ah or 12V 10Ah sealed lead acid batteries as their power source. Some newer electric bicycle models offer advanced technology Nickel Metal Hydride (NiMh) or Lithium Ion (Li-Ion) storage batteries as their power source which provide longer driving ranges and weigh less than conventional sealed lead acid batteries. We have electric scooter parts and electric bike parts for all scooters and bikes made by Currie®.
Mid drive systems are known for being able to climb long steep hills because they can leverage the lower gears of the bike and keep their rpm’s in an efficient range without getting “bogged down” like a hub motor. This is a good feature if you ride in areas that have consistently long and steep climbs.
“I recently purchased a new electric scooter that needed batteries. Fortunately, I found your website. You had just what I needed and at the right price. Besides having all the parts I will ever need for my electric scooter, your service was exceptional. I received my batteries in three working days. That’s great service!” – Carl from San Diego, CA
Want to convert your regular pedal bike into a motorized bike?. Look no further, we have found you the perfect conversion kit. This kit comes with a 36V / 500W brushless hub motor, a 26’’ rear wheel, …
Like the Dapu motor used on BH Easy Motion bikes, the TDCM drive does not have a torque sensor built into it. Stromer uses a TMM4 torque sensor built into the rear dropout. Unlike the Dapu motor, however, the Ultra Motor hub does have a specially configured controller built into the hub.
Hi Eric! It looks cool, I was just over at their site exploring but unfortunately I can’t comment on performance… Haven’t seen or tested one myself in person but maybe someone in the forums has and can chime in? If you end up getting this kit I’d love to hear your thoughts and feedback and in the mean time I’ll keep an eye out and try to get a review done 😉
The electric bike kits above when sorted by price from lowest to highest will start with kits without a battery pack. As you scroll down to higher priced electric bike systems (kit and battery combinations), you will find kits paired with various ebike batteries. We offer SLA (sealed lead-acid) battery packs in both 36v and 48v and in 2 capacities (9ah and 12ah) and we offer LiFePO4 (lithium iron phosphate) batteries in 10ah capacity also in 36v or 48v. Conversion kits with SLA batteries are less expensive and kits with lithium batteries are more expensive. Other than the battery pack, all of the conversion kits are the same price and include the same components. Please visit our FAQ page for more information on the differences between lead and lithium ebike battery packs.
This past July 1st we moved our location to Croydon, PA and doubled our space. Additionally we’re looking to hire at least 2 additional employees! This is all to support our expanding conversion kit business and to support some new business we have planned starting in September (more to come on that soon). We would like to thank every single one of our customers, partners, associates and fans for your…
Despite this progress, an analogy would be a car which is often, depending on battery type, only getting a trickle of gas after half an hour, and out of gas in an hour of busy use, no matter which battery type.
There are direct drive hub motors that use the whole hub shell as the electric motor. And there are geared hub motors that have a smaller internal motor with planetary gears that drive the hub shell. Here is a comparison of direct drive and geared hub motors.
Hi Jasmine! Interesting question, I think you could use a geared hub motor mounted in a 20″ wheel but am not sure if that would match your wheelchair perfectly or mount to a side axle vs. one that’s built into the hub (most ebike hub motors I’ve seen are permanently fixed to the axle). Lots of companies offer basic motor, battery, controller kits but this one from Dillenger appears to come in the small 20″ wheel size. Maybe there’s a way to add a mounting system between the two rear wheels to have this third wheel act as power? The other challenge is reverse, most electric bikes don’t offer this but one company called E-BikeKit does with their trike conversion kit here which may also come in 20″ wheel size. I hope this helps you get started, if you call the E-BikeKit company ask for Jason and maybe he can even give you some more advice as they offer some models designed to be more like personal mobility trikes vs. fast commuter bikes. One such model is their Liberty Trike here.
Gears are both a blessing and a curse with mid drive systems because now instead of just the rider exerting force into the system (the chain, rear cassette cog teeth and derailleur), the motor is as well. If you’ve ever changed gears when pedaling hard, you may remember the awful sounds and sensations of mashing, crunching or grinding. The teeth used to pull the chain and the derailleur arms used to move the chain from one sprocket to another are sensitive, requiring a certain finesse to activate properly. Doing so will extend the life of your bike and help you to avoid tune-ups and cassette replacement.
This article first appeared in Electric Bike Report in June of 2013. Since then, we’ve made some changes to our motor selection – our Direct-Drive motors are now all High-Torque 6×9 wound, so they run slower (approximately 15mph at 36v or 20mph at 48v), and our Geared Motors have been replaced by a 500w version, (approximately 20mph at 36v or 28mph at 48v). The Direct-Drive is now our Heavy-Duty motor and the…
Toll: I’ve actually seen a wide variety of people switching to ebikes for many different reasons. A large group consists of college students and young professionals, especially those living in cities, who use ebikes as an alternative to buying a car or relying on public transportation. The main benefits for this group include being able to commute on their own schedule, not paying for a car, insurance, parking or a yearly bus pass, and being able to beat traffic in crowded cities. I also see a lot of eco-conscious adults in cities and suburbs who use an ebike as a second vehicle, allowing them to leave their car in the garage for many of their ‘around the town’ trips that don’t really require a 3,000lb gas guzzling machine. Lastly, there are many people who would like to get into cycling, but due to their age or previous injuries, haven’t been able to succeed. With an ebike, they can get back on two wheels and have total control over how much they are pedaling and how much the motor is assisting them.
Hi Pâmini! Yes, I’ve definitely been planning to review the Spicy Curry and I agree with you that the smaller 20″ rear wheel helps to improve balance. It also improves power because less torque is required to turn a smaller wheel. For the price, it seems like one of the best options. You can see my thoughts on the TranzX mid-drive motor by watching this review of the IZIP E3 Peak which uses the same setup. I admit that I do not like this drive system quite as much as Bosch but it is getting better and for the price it is quite good. I hope you and your girls have a blast riding whatever bike you choose and maybe in time you can let one of them tag along http://electricbikecharger.com a trailer like this that teaches riding. Also, here’s a video I made a while back that teaches the balance for riding a bike on your own 🙂
Since the motor is at the cranks of the bike it provides for a low and centered weight distribution. If the battery is mounted in the center of the bike that further adds to great weight distribution which is good for the handling of the bike as well as making it easier to lift onto a car rack or carry up stairs.
The #kleeferpure180 is the best multimodal commuter scooter with the fastest fold! Trolley it easily and pop it open when you’re ready to ride! #kickscooter #scooter #scootcommute #multimodal #nycewheels 22.02.2018 – 23:27
accidentally ordered this size for my Schwinn 350 scooter – and it still fit. great build quality. easy to install. great price. fast shipping! no clearance problems for the back of my electric scooter!! great all around!
We greatly appreciate the vote of confidence and trust our backers have put in us and in our project. We are working hard to avoid issues and have been planning a contingency strategy to get the products to the backers and fulfill our goal of getting more people riding bikes in a smarter way. Our combined experience and a network of resources will allow us to quickly react to any unexpected issues.
Question: The review on Lightning Rods states: “This kit comes stock with two chainrings, a 32T AND a 48T.” There is no front derailleur in the picture. Does that mean it is an either or choice AND not both?
Hi Jose, sorry to hear about dogs and strangers making you feel insecure on your bike :/ the most drag-free system I’ve reviewed so far is the Add-E because it doesn’t even touch your rear wheel when pedaling and it’s super light weight too. The only downside is that it’s not very powerful… It would still assist you well though and the 600 watt version can go over 20 mph if you pedal along and then keep you there more easily. The basic 250 watt system cuts out at 15.5 mph to comply with European laws but also costs less.
Hi Lisa! Front hub motors can be fine, they do tend to impact steering a bit and can spin out easier but are way simpler to either install or service because they aren’t surrounded by gearing cables. The fork on most bicycles isn’t as strong as the rear dropouts (especially if there’s a suspension fork) and this is another reason why most purpose built models don’t use them. Some simple city bikes do however and you can get a good example of this with EZ Pedaler. They opted for front motors because they put geared hubs in the rear which makes shifting at standstill possible, reduces exposure to bumps if the bike tips and is generally cleaner and less likely to need tuneups (but only offers 3 gears in this case). I hope this helps you to find the perfect ebike, feel free to post in the forums if you’d like more info or some help from fellow electric bike owners 🙂