Top 10 eBike Conversion Kits & Where to Buy

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by miro13car » Sep 03, 2014 6:35 pm

Arkmundi,
on your find - 20Ah 5C aluminium ancased cells 36dollars each,
is there any record of how good are they? I would be carefull to believe that specs.
I would rather spend twice that much for a cell and get genuine A123 20 Ah pouch instead.
I have already 460 cycles on my A123 12S pouches /rejects, grade B, diverted from recycles/ and recently discharged to 10Ah with 39V still holding/moment after releasing throttle/. I don't use any electronics in my pack, I am BMS myself, strongly believe I do not need any BMS.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Sep 20, 2014 5:20 am

Regarding the MAC 10T vs EZee V2
teklektik wrote:According to the ebikes.ca simulator, it looks like the eZee is a probably a better choice because it gives comparable power on the 15% climbs at higher efficiency which translates into less waste heat and a longer time to overheat..... and much more .... Anyhow - make what you will of this stuff - it's just a little data mining from the simulator.... :D
Great post on how to do a comparison based on data, the simulator and essential considerations.... thnks teletik! :mrgreen:

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by docnjoj » Sep 20, 2014 11:32 am

I gotta recommend the XiongDa 2 speed motor after all of the development work that they have done. A number of competent people including bike engineers like D8veh have been testing them with good results. Still very reasonable in price and high quality for a mid power (250-450) watt motor. It enables good hill climbing and decent cruising speed in a relatively small package. The auto-shift now works really well in the newest KT controller.
otherDoc
My Xiongda recently failed due to gears failing. I am awaiting parts from them to repair the motor. I do miss it's light weight and great power at low speed. Stay tuned and read the "2 speed motor" thread for updates.
Last edited by docnjoj on Jan 29, 2015 3:12 pm, edited 1 time in total.
E-bike stable at our house

Steintrike Mad Max full suspension trike rear Cute 100H going on: Whoops, Cute wheel broke but I fixed it.
Sun USX delta trike EbikeKit small geared front wheel sort of front suspension for wife

Agniusm/A123 AMP 20 36 volts on the Steini has been taken off.
2x16000 Multisport from HK now gone as they died after 2 years
New Luna 10S bottle battery 13.6AH now on mine
Relatively New 10S4Px2 for wife's bike giving 20ah @ 40 volts home made Panasonic from Tumich. BMS's rule.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by demeyer1 » Oct 03, 2014 12:50 pm

I know there are a couple folks in my shoes on the forum who want to try a first time conversion kit out, but it seems daunting. Couple questions for the more experienced:
1. Which of these kits is the most turnkey (for <= $1100)?
2. Which bike, commonly available on Craigslist in most cities, would be easiest to convert?

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by teslanv » Oct 03, 2014 2:35 pm

demeyer1 wrote:I know there are a couple folks in my shoes on the forum who want to try a first time conversion kit out, but it seems daunting. Couple questions for the more experienced:
1. Which of these kits is the most turnkey (for <= $1100)?
2. Which bike, commonly available on Craigslist in most cities, would be easiest to convert?
The Bafang BBS02 was my first install, and I found it quite easy.
Any common mountain bike with a 68mm bottom bracket (the most common size) will work with the BBS02 kit. Minimum of front suspension recommended, Full suspension is preferable, but complicates the battery install.
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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Oct 03, 2014 3:54 pm

demeyer1 wrote:I know there are a couple folks in my shoes on the forum who want to try a first time conversion kit out, but it seems daunting. Couple questions for the more experienced:
1. Which of these kits is the most turnkey (for <= $1100)?
2. Which bike, commonly available on Craigslist in most cities, would be easiest to convert?
There's a lot of good product and opinion on ES and elsewhere. Like for a car or a house, etc., best to go shopping and do your own compare and develop independent opinion. The vendors listed all have good web sites to help you along with that comparison. The steps I recommend are: 1> to do that shopping with the websites, this forum and others to get a sense of what's available and the price range, 2> ask questions of the vendors and here on the forum to further develop your understanding, and 3> start a build-thread before you buy, posting the details of what you want to do, what you're planning on purchasing and from whom.

You'll complete out your build thread as you proceed, to completion, with photos and videos. Its also where you'll post questions on the build as you proceed. One thread, beginning to end. Along the way, you'll likely pick up some mentors who watch your progress and are quick to respond on questions during your build.

As far as what bike - its really, almost any bike. Depends on what you plan on doing with it. There are a lot different classes of bike, from street, to hybrid, comfort and mountain. If your use is on the trail, then get a bike that will do that. The electric motor is an assist to the bike & pedal. And don't rule out buying new from a high volume maker like Trek. They have a lot of very reasonably priced good quality bikes.

Best on your build!

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by SprocketLocket » Oct 03, 2014 6:47 pm

I think it should be noted that EM3EV also sells Bafang BBS02 kits.

This list is a great idea!
demeyer1 wrote:I know there are a couple folks in my shoes on the forum who want to try a first time conversion kit out, but it seems daunting. Couple questions for the more experienced:
1. Which of these kits is the most turnkey (for <= $1100)?
2. Which bike, commonly available on Craigslist in most cities, would be easiest to convert?
demeyer1, I can't call myself an expert, but I can say I've done a ton of research on 1st-build kits. Here are my incomplete thoughts, FWIW:

I have a lot of respect for TeslaNV, but it's hard to believe he mentioned the BBS02 as an "easy" kit for beginners. I mean, it involves totally replacing your crank and bottom bracket. I didn't even know what a bottom bracket was when I got into this. I rode a bike as my sole transportation for several years in a different country, and the hardest repair I ever did was replace a hub due to a bad bearing. I don't even own the tools to take off a crank, and I barely know what a spanner wrench is. The vast majority of people would need a bike shop to put that kit on, and most people with some starter tools and dabbling at being handy IMO do not have the tools required to do that conversion. My dad, for instance, who is interested in ebikes, would just not be able to do it. I inherited a lack of handiness, not surprisingly, but I just have more stubbornness/determination, so my "will" can make up for a lack of "skill", thanks especially to the internet and forums like this one.

The absolute easiest thing is a hub motor on the front wheel, but please don't do it on the front wheel. Front wheel hubs are dangerous for multiple reasons. You don't want anything bad happening with your front wheel when riding (loss of traction due to power applied, forks weakening/breaking). Safety first. That said, the rear wheel hub motor kits are the easiest/most turnkey. I mean the ones which are already sold mounted on the wheel, with the gear and spokes and everything. Some kits even have a tire on them! You would be swapping out the rear wheel (loosening/tightening lug nuts), and affixing the cables, hopefully swapping in your safety e-brakes that cut off power when you brake, mounting your battery, and that's pretty much it I think.

The Ebay kits are the cheapest, but probably have the worst support. Can't speak from experience, but they are a USA-based importer of Chinese schlock--I mean goods. IOW, they don't just sell Ebike stuff--at all. They do move a lot of those kits though, so maybe they have a specialist for them. YesComUSA sells as Ebay seller Xcceries, so you get Ebay protection plus a slightly better deal. The most vocal supporter for them here is user WesNewell. Most of their kit motors have the copper wound fairly "fast" (lower torque, higher top speed on flats), which is ultimately what started to turn me off personally. I believe at least some are Golden Motor knock-offs. I think the "speed" of the winding is the biggest thing stark newbies do not realize when purchasing a kit, not realizing even most expensive kits won't get up all hills by themselves. The other one is how dangerous front hub motors are. Another is the need for torque arms in all front motors and many rear motors. For me, deciphering WesNewell's signature was the start of understanding the "recipe" these kits contain. Then looking at the Ebay listings for these kits (Xcceries), as Ebay tends to have decent product photos. WesNewell has replaced his controller though, and his battery is self-assembled and not super-simple. For me, the most complex thing about converting a regular bike with a regular kits was not that, but, it turned out, the battery itself. It can cost as much as everything else combined, and if you DIY it, it's another learning curve with potential danger (particularly with LiPo, which is what I did). Worth it for me b/c I get more power, lighter weight, at far less money. Just learn the ropes. Or go with a safer chemistry.

The forum elder who IMO is the most knowledgeable and prolific about ebikes here is dogman, who, as I understand it, works for EbikeKit.com (I think the guy should own it!). This guy thinks ebikes all day long, then comes home and does ebikes at night on his computer helping US out for free. And probably has some real ebiking at least a couple times a day somewhere in there. I can't imagine getting a better support person from a seller. Their prices are naturally higher than Chinese outfits, and I just cannot figure out their website.

Complete hub kits will come with not just the motor, but a controller, throttle, safety e-brake thingies, and possibly a battery.

The real question is: how much of a learning curve are you willing to put up with to save x amount of money, and/or to achieve a certain performance with a certain price range, and/or do something unusual. Such as, do you not even want to replace the tire on a rear wheel kit (if so, look for a kit with a tire included). Second, what kind of support do you want or need from the seller. Third, what kind of terrain or riding style (including distance) will you be doing. Commuter (emphasis on reliability and efficiency) vs pleasure riding (emphasis on fun, or maybe just cheap) might be different, even for the same person. There are a lot of good kits out there, and ppl on this forum tend to support those who have better support, but there is a range within there. Such as, if you go with a Golden Motor, most here including myself would recommend you get it from GoldenMotor.ca (Canada) instead of GoldenMotor directly out of asia, b/c the .ca guy is serious about support and returns are easier too. There is a Golden Motor USA, but I haven't turned up much info on him. GoldenMotor is sparse with allowing dealerships.

This forum is made possible by eBikes.ca, which sells kits geared towards people who want high quality, and high quality support (people who don't want to cheap out, just want something good). I think it's fantastic that we're not restricted to mentioning outside vendors. I think he realizes that the more this forum flourishes, so do ebikes, and the more that happens, the better he is going to do either way (rising tide will raise all boats). Kind of like Tesla is not going to hoard their patents anymore. Justin is some kind of ebike genius or something. He makes his own non-kit products which he actually sells to other vendors. For instance, EM3EV sells his torque arms, which to me is quite an endorsement. His most famous product is Cycle Analyst, an extremely fancy watt meter/bike computer basically (but much more), commonly referred-to here cryptically as "CA". The geared motor version he sells is by Ezee which is higher quality than MAC and BMC (similar designs) and more efficient, but at a higher cost. EM3EV is based out of China, but run by a non-Chinese person (who I think has moved to China?). Both vendors offer highly customizable choices.

After my own research, I had narrowed it down to a MAC which is a geared hub (10T I'd imagine is the best balance of torque and speed for most people), Bafang BBS02 which is a mid-drive (doesn't fit on some bikes, more complex install), and some version of GoldenMotor Magic Pie which is a strong direct drive hub motor, in no particular order. YMMV. But you see my indecision here: the 3 I settled on represent the 3 fundamentally different types of eBike kits! With their own tradeoffs. Plenty of other good products. For me, torque was/is more important than just raw speed and then puking it on a steep hill. Check out WesNewell's 'Hills of Wylie' video #2 around 9 minutes in if you want to see what I mean (again, no disrepect Wes--quite the contrary)... that's a thousand-watt kit. I will quickly add that Wes has been very happy with his kit but also is now getting a more powerful motor after several years. So, now you've discovered ES--and you have naturally discovered indecision! But that's a problem you want to have, due to so many good products, and some good vendors.

Hope that helps. I know this is the kind of post I wish I would've come across when I started to research and got overwhelmed. Again cred to WesNewell's sig, as that is where it started to come together for me. Long, but I'm sure it'll save some newbies hours of research. The OP will do the same.

PS: As for your question #2, I didn't take a stab, b/c I'm not a bike expert. However steel frames are viewed more favorably due to their strength and the fact that steel usually bends when stressed, while aluminum usually breaks. And steel-framed bikes are usually cheapest, too. This is not a 'feature' many will usually be 'advertising' on CL, though. I draw distinction from high-end chrome-moly steel frames, of course. If you want to do a BBS02, you will need to get a bike with a compatible bottom bracket, and knowing what it is for a used bike on CL is not going to always be easy. Basically, fat bikes are out unless you get one of the new crop of custom-modded BBS02's which fit up to 100mm BB. Most people here, I think, start out with a cheap used or already-owned mountain bike.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Oct 03, 2014 7:01 pm

SprocketLocket wrote:The absolute easiest thing is a hub motor on the front wheel, but please don't do it on the front wheel. Front wheel hubs are dangerous for multiple reasons....
This isn't true. Lot's of folks do a front hub mount, because its the easiest. My Gitchee has a Heinzman 500watt on the front, batteries on a back rack and wiring in-between. Rides great, balance is good, no mishaps. My MXUS will go on the back wheel of a Trek Shift 3, however, because I believe there are advantages putting it there.
SprocketLocket wrote:This forum is made possible by eBikes.ca... The geared motor version he sells is by Ezee which is higher quality than MAC and BMC (similar designs) and more efficient, but at a higher cost.
the Ezee, MAC and BMC are are roughly comparable, each maintaining a healthy R&D, and upgrade pace in this pack of motors. For many cost does matter, and the newly upgraded MAC from EM3ev has a better price and head-to-head with the Ezee would hold its own.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by demeyer1 » Oct 03, 2014 7:22 pm

This might be the best forum on the internet. I've never met people so helpful or thoughtful. Thank you SprocketLocket.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by teslanv » Oct 03, 2014 7:32 pm

It is true that you have to remove the bottom bracket to install the BBS02 kit. On my first build, I just took my bike to the LBS and they removed the BB for me. I now have a BB tool, so I can do it myself. I have had to learn all about bicycle repair over the last year. It has not been that difficult really. You just have to have a little confidence, and READ, READ, READ. And do a bit of YouTube.
I was a clueless NOOB in every possible way, just one year ago. My. How fast the time flies when you find a hobby you really enjoy. :mrgreen:
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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Oct 21, 2014 1:11 pm

I've added this listing in, which folks in the market for a great front hub kit should jump on:

Front MXUS 26" Geared hub kits from Ypedal.com October Sale
Ypedal wrote:October Sale :
Canada : 325 $ shipped
USA : 350 $ shipped
http://ypedal.com/kit/kit.htm

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by onfire4jc » Nov 06, 2014 2:31 pm

Does anyone have any experience from Savannah Ebikes?
http://www.savannahebikes.com/electric_ ... r_sla.html
They look like a US dealer but have not seen anyone mention them yet.
Any experience offered could be great...looking for a rear hub electric kit in the price range under $400 and they were one of the few outside of chinese Ebay stores to fit the bill.

Also, since I am posting, I might as well ask about Ebay store Ebikeling.
http://stores.ebay.com/ebikeling/
They seem to have a cheaper option kit but in 26in, 28in, and 700c.

I am looking for a 700c rear motor conversion kit. And those two are the only two that fit the bill under $400. Let me know if you all have any other thoughts.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by edcastrovalley » Nov 06, 2014 4:26 pm

I have a friend that sells ebike conversion kits in the SF Bay Area (Fairfield) and is actually probably one of the better distributors out there. He started out as an Amped Bikes distributor in 2010 but now sources his own parts and makes up his own kits. I've bought 3 kits from him so far. All kits have held up well and I still have all 3 at home. The only problem I ever had was a key switch that failed on the battery pack which I quickly wire nutted around anyway although I'm confident he would have repaired or replaced it anyway. Besides, I have since switched to lipo. He also stocks rims and spokes and will make up a wheel for you. If you can bring in your bike he'll install a kit for you. He also communicates well and has fast service. If you call his number and get his voice mail be ready for a fast return call. His kits are primarily direct drive hub and geared hub motors.

His website: http://www.gocarlite.com

His name: Doug

His phone: 707-439-3179

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Mark's project with yescom motor on a Schwinn

Post by arkmundi » Jan 29, 2015 1:14 pm

See Mark's Winter Project for a good buildout using the yescom motor on a Schwinn MTB, I like it when an eBike maker works through all the issues, completes their build and documents the process with pictures and explanatory verbiage, as Mark has. In particular, he bought into an economical yescom motor, but then made some enhancements to run a higher more adequate voltage and current, including replacing the phase wires. Great work & kudos!

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by cwah » Jul 19, 2015 5:24 am

What's the best kit for 2000W power?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by 2old » Aug 13, 2015 5:02 pm

+1 on Ypedal; see review of 350w kit.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by Nathan » Nov 28, 2015 6:45 pm

Will this thread have any best batteries out their as well ?

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by pomah » Feb 20, 2016 4:26 pm

Cyclezee wrote:Just to add eZee and Heinzmann kits are available in the UK from Cyclezee http://cyclezee.com

BTW, we tried Falco but they were a disaster and are no longer sold in the UK.
What was bad with the falco kits?

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by miro13car » Feb 22, 2016 5:42 pm

What do you mean by "we" ???
FALCO disaster?
It is on the top of the list of the best!
That they stopped selling in UK,
Companies stop selling stuff for many reasons.
FALCO has high reviews on Bicylerport,reviews.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Dec 13, 2016 10:38 pm

I added an Amazon Aosom Rear Wheel 48V 1000W Electric Battery Powered Bicycle Motor Conversion Kit for $239.95 & FREE Shipping (late 2016) to the list of affordability options. To support building the the <$1000 eBike.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by AstroKat » Jan 08, 2017 6:55 pm

Just clicked through to this thread from your signature line. Amazon has similar kits by AW, which were out of stock over Christmas but just came back online. Aosom's pricing is all over the shop - the same kit with an LCD is $449, whereas AW has it back again with a couple of extra accessories for $239.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by arkmundi » Jan 08, 2017 7:45 pm

AstroKat wrote:Just clicked through to this thread from your signature line. Amazon has similar kits by AW, which were out of stock over Christmas but just came back online. Aosom's pricing is all over the shop - the same kit with an LCD is $449, whereas AW has it back again with a couple of extra accessories for $239.
I'm with others on the forum that believe there is a very large scale Chinese hub motor company flooding the market with these 1000 watt motors through a large number of retailers and online markets, including AW, Aosom, Walmart, eBay and others. All the same motor. Probably all the same kit for controllers, etc. They've found a very low price point that no one else can match.

My own experience is that:
  • the 1000 watt DD hub is pretty good - it really is a fast motor, up to 30 mph
  • the wheel rim & spoke set are strong, probably all steel; I had to tighten all the spokes - they came loose; so also had to true the wheel myself
  • the tire & tube are cheap - I replaced them with a Maxxis Hookworm and a downhill tube
  • the controller is also cheap and no-name; I installed it nonetheless and believe that after just a month that it is failing
  • don't like the throttle at all, as it has in it the on/off switch, which gets in the way of easy functioning
Don't know what's up with the controller - symptom is extreme intermittancy of function. I suspect that cheap mosfets, that are over heating, causing the built-in thermister to trigger a motor shut-down. I'm in the process of replacing the controller with 6-fet 3077 controller from em3ev, along with his thumb throttle and control set (3-speed switch, on/off & cruise). About a $100, the kit now costs me $339, still a bargain price for a kit.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by AstroKat » Jan 08, 2017 8:04 pm

Thanks! I was going to replace the supplied tire and tube with the one already on the mountain bike, anyway, so the tires match.

Some of the the kits have the thumb throttle which worked well. Not sure the twist one would, though.

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by AstroKat » Jan 08, 2017 9:17 pm

Here's the link to the kit from AW on Amazon which seems to be the best deal at the moment (if you want an LCD display: https://smile.amazon.com/gp/product/B01M6Z8CW5

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Re: Top 10 eBike Conversion Kits & Where to Buy

Post by 2old » Jan 09, 2017 9:47 am

On the YES kit that I'm using:
1) Didn't care about the display and didn't receive one; I have a separate GPS computer.
2) 32+ mph @ 52V
3) Thumb throttle works fine
4) Wheel was dished perfectly, straight and I've tightened the spokes 1/4 turn twice in more than a year
5) Controller seems to still operate as new

Agree the systems probably all the same, and it's the luck of the draw, but some individuals (AIR) have had controllers replaced by the vendor.

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