Best E-bike Motor You Can Buy - Grin Tech All Axle Electric Bike Hub Motor Overview | Holmes Hobbies
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- Опубликовано: 31 янв 2020
- Ready for some E-Bike talk? John switches up gears and gets into his e-bike hobby in this video. More specifically he shows you a Grin Technologies All Axle Ebike Hub Motor and explains why the motor is superior to standard e-bike motors. John goes over details from machining to weight, torque and everything you need to know. The Grin Tech motor does carry a bit higher price, but after you see the details on why this motor will offer such great performance, you'll see why you should consider it for your next electric bike motor.
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*Great **Latest.Bike** . I upgraded the pedals, added fenders and installed a handle bar extension to raise them. Now it’s a pumped out E-Bike. I love it.*
Tabbed torque washers, Hardened steel double torque arms plus lock washers on every build.
One spin out 10 years ago and the motor repair taught me a lot.
Damn, where can i get those hardened steel torque arms, i guess not from china right?
real men don't use torque arms LOL .Can you say 1/2" thick dropouts.
I've been a tight nutter and survived that way for two+ years on my etrike before it started spinning out of the fork and ripping the phase leads. This looks like a great solution for front hub builds.
Awe man. Wonderful and informative videos !
I'm looking into going electric and I never realized the cons of regular wheels vs this quality e wheel you described. Thank you very much for your insight and shared experiences
Those motors look really cool. I'll have to check them out. I've built a couple ebikes using the more generic version that you're showing. All the ebikes I've built I've always done a double torque arm setup. I just don't see it practical to assume any other setup would hold up even short-term and especially long-term. It's good to see there's a better option out there. Thanks for the video!
I really like bionx anti rotation locking nut seriously on of the best mechanisms I’ve witnessed for an anti rotation mech
The comments are very good. I had my experience with the Aston Rider ebike kit, it came out less than 300usd with lifepo battery and it has been running without problems since I had it more than a year ago
I got their GMAC motor and am very happy with it. The All Axle motor looks really good if you prefer front wheel hub motors over rear wheel ones. Grin is an awesome company.
Is the GMAC a geared brushless and not DD? with a through axle/"all axle" system? I too have a fondness for the less appreciated front hub!
The GMAC 8T i had was very good performance wise. But it overheated quite quickly and it only lasted 6000km before it self-destructed (axle bends over time, causing internal parts to rub and pieces fall apart. Typical Chinese quality. Also condensation is a huge problem if you live in a place with cold temps. When I opened the mac it had a lot of water trapped inside. Also the spokes cracked because of the weight of the hub motor.
My dream bike has a mid-mounted direct drive hub motor that powers the rear wheel via an enclosed chain and only a single speed cog in the back.
Normal mid-drives eat a chain and a cassette every 300 miles...
Very comprehensive review and in-depth approach to your explanation! Good job.
I mounted an Ebike with one of those kits and on my second ride, I got a bump on the road and the wheel stopped working. I had to push my bike 3 km to my house in the middle of the night. Not a cool thing.
This technology really needs to improve. I'm glad you guys are getting into it.
Years back I bought a Crystalyte motor from Grin and it runs with a 52V 18AH battery in a front axle configuration. The motor sits in a steel fork with two torque arms. So far I love it but I will upgrade to the all wheel motor in a rear axle config eventually.
A few years back crank motors where the best and easiest to install. Now they are not even mentioned.
Finally found your channel, wow. You are very good on the tube, man. I always knew you would do well, you are a very tallented builder, proud of you JRH.
Love wheels since I was 1, electric motors came right after that... best combo👍🏻😎👍🏻
Can you remeber loving wheels at one or did someone tell you after the fact?
@@trippleeksell4098 yeah i’m curious too
Good talk about weight and reaction torque issues. Not as much about the bearing and shaft which are also critical to me. My project is a quad bike which needs to fit through a 32" doorway. I like the Grin motor because it doesn't stick out past the tire (or looks that way). The quad needs a single side mount with a robust shaft which also cannot stick out past the tire on the outside. This video is 2 years old. I'd love to get an update where we are today and where the technology is going. Thanks for some really good info.
I'm so glad your into e bikes. I always check your RC videos for great info I can trust. Now I'm building an ebike out of a Norco Shore and this is perfect. Except I want rear drive. Or maybe front and rear for muddy snowy conditions. ⚡⚡👍
the first 30 seconds had me banging my head on the wall XD
I have an off-the-shelf Juiced CCX and I'm pretty pleased with it- Bafang rear hub running 52v. I'm keen to do an eMTB build in the future, but I suspect I'll do a well sorted factory built one rather than keep sinking $ into experimenting! I want that sweet Specialized Mastermind system.
we recently had a problem putting motor because bike was thru-axel. thru-axle solution is great
I must admit, I've had a bit of a fetish for motors myself since I was very young! 😁
Would love to see some videos of people actually using this motor to get an idea of how powerful it is. Looks really good!
Yup agreed
Hi there.
I buy steel drop outs bolted to the aluminium frame working great for 2ys now.
Thanks.
That's exactly what I could not find on the big 2 Internet sites. Thanks.
I have a 48 volt 500 watt hub motor mounted in the front wheel of my two wheeled recumbent, and yes I use a torque arm, and I've never had a problem.. But then again, since it is a Direct Drive/Magnetic motor, it does not spin up as fast as say a geared hub motor. On the plus side I have a maximum load limit of 600 pounds, and since I often pull a trailer, it works just fine for me. Oh, and my parents live on top of the second biggest hill in the city I live in. A one mile uphill grade. Okay, so its a good motor, but what is the voltage and what is the wattage? And what is the load limit?
Hey man loved the video very informative. I'm working on a specialized big hit and was considering a mid motor pedal assist conversion, this vid came up and I'm considering a front motor now 😂 I need to replace the bottom bracket anyway though
I need one 😀👍👍👍 thanks for the tutorial.
Looking to use a hub motor on a trike for steadi cam work.
Need to be able to set the speed and also reverse the trike. Any suggestions ?
do you know of an elec. 20" dia. front wheel that works with the standard 4" dropouts !!!
How many watts is this motor rated for? Is is more powerful than a 3000w hub drive you can buy off of allibaba?
I have been using my own torque arms for a few years. Easy to make your own using 9-12mm (depending on Adel size)box end wrench with a hose clamp and bolt.. Bolt goes throu round side of box end wrench. Open end of wrench goes on axle.. Hose clamp to frame or fork
I've certainly had a few bikes with wrenches for torque arms!
Interesting. I hope ti see a video on that. Thank you
Lots of words and no specs. What kind of torque does it produce, what are the additional stresses it can handle? You mention it's a better design and they do scientific testing but where are the numbers to verify it?
Go to their website for full tech specs and on endless sphere forum for the testing information.
@@HolmesHobbies , that sounds like lots of junk-mail niggas luring me to store/website then not even booklet discloses watts, upper amp-temperature sturdiness-tolerance, nor production. So I will go to website and if headache to find current load, rpm, performance workload potential, and rain-puddle resistance durability , there I will tell them to stick it up their weely consumer-disservicing pig-in-a-poke junk-mail . Wino-Dope Rot for brains hyperbole-advertisers should do jail time for anti-information garbage littering. Switch to Recreational over-the-counter Non-alcoholic Marijuana !!!!!
All motors are generally the same it’s just a washing machine motor converted to run more effeciently and in a lighter workload
What you put in is what you get out with electric
HolmesHobbies Well I tried to use the link that you provided but it says it is a “no go” so can you provide a new updated link to their site please? Thank you.
The cheap hub motors from the typical 250 dollar kit with Me have always had an issue with the main wiring harness which consists of 9 wires turning and being damaged over time. What can keep that cable from spinning and twisting up?
That's a serious freaking hub motor! I'm getting it!
I’m running a front 9C motor on my conversion ebike. (44V hand assembled battery, old school mtb, 26 in wheels, 35A controller) I would have loved to get one of these Grin hubs but it was not in my budget. Your advice on a torque arm is good, I have two on my bike.
I like 2-strokes too. I once had a Japanese car that was a two-stroke that performed like an Aston Martin! Getting back to cyles : I want to do some extensive Touring on a Brompton folddown. Still in the Phase of deciding what, where and how; considering Regen Braking systems, thinking about Torque capacity of an E-bike motor for the Brompton and a whole lot more. I hope I can get a few hints and tips form this vlog, bearing in mind I am not young, have no smart sons who know everything, know nobody who can help BUT, I can learn reasonally fast, coming from a family where the men played with Engines.
I was just reading about the Grin 'all-axle-hub-motor" last night, I have an old "Giant" frame that I converted over about12 years ago used a crystallite 407 in the rear wheel, worked ok when the SLA batteries would take a charge. The front suspension fork is an old "Judy Rock Shock" and I am thinking that if I can come up with the funds necessary, I should probably get a whole new package. The fork does have mounts for the disk calliper the rear brake is of course V-brake. It does seem that the folks at Grin have this motor nailed down, expensive yes but well worth it I figure.
Maybe not the best place to ask, I bought a Kickbike Cross Max 20D and was wanting to put a hub motor on the rear as I understand putting one of the suspension fork is frowned upon. Problem is, it's a strange hub width on the rear that is only about 72mm wide.
Is that a hub motor that is out there that would fit? I'm sure I can source it out to 75mm if needed.
Interesting stuff, thank you for sharing. I looked through the rest of your videos and couldn't find any follow up to downhill hubdrive bike? I'm interested in making an hub drive 24in mtb, any direction would be appreciated.
I brought a moto tech 350 w 36v I had to change the front tire actually still the process little did I know the wires to the motor are now showing but seem to be fine ... my question is do I need a new Hub or is my motor still good?
I just converted a 26” Cannondale M700 frame with Pepperoni fork to a 500 w 36v front hub motor. I bought a torque arm but sent it back because I guess my nuts are tight enough. It’s racking up some hilly miles with no problems.
Would you recommend waterproofing/waterresisting this motor?
i have a 12mm 135mm thru axle is there any motor for that size? cuz i oly saw 12*142mm motors. thanks cool video
what do you think the possibility of integrating a nexus 3 speed hub into the middle of the hub?
Hay plez do a video of your mounting 2 or 3 motors on a bike I'm trying and I'm just lost I'm using a ancheer eb004 (city commuter )
can you show how to destrict hub motor speed sensor . i want more than 15.5mph. cheers
I’ve been using Goldenmotor Magic Pie v5 and Edge Motor’s on all my builds. I’ve done 5 so far with the oldest built in 2016 still going strong. I like a super clean cockpit so the only thing on the bars is the thumb throttle. Since it’s throttle only I can use any brakes. Some bikes like the oldest uses no torque arms because the kickstand on one side and the derailleur on the other side are heavy steel and so far never had a problem even at 25amps with 52v battery peaking at 58.8v. Another MagicPie-V5 needs 2 Grintech v4 torque arms ir it will spin I the rear dropouts. The edge motors are smaller and have had years with no trouble and no torque arms in aluminum rear dropouts. All these have strong regen and are about $400 usd from Goldenmotor.ca or Goldenmotor.bike. I love that the controller is built into the wheel so I get the cleanest build that’s a regular bike with a throttle for whenever you feel like using it. These are commuter type bikes so nothing fancy. I’d love to build something crazy but the costs add up quickly. Love the videos!!!
where do u get ur batteries from
sir, someone suggest, where can i buy good or moderate quality hub motors for tricycle in India or in the world. i need moderate price, good quality hub motors. i cant afford for grin tech and Heinzmann and cant buy chinees too.
I am still trying to figure out how to get a Grin wheel for my coaster brake flat track bikes. I have skip tooth sprockets on pedals and 115mm drop outs not cassette friendly. LOL! My CWC 1953 Roadmaster front drop outs have not distorted in 1000km and several 30kph speed bump hits. I will machine a brace now to strap to the fork leg, American steel way better than alloy.
Great videp❤
GMAC on a steel touring bike! 52v and it's a dream.
Fantastic video I am looking for a recommendation, I am looking for a hub motor or and mid-drive. That will work on my Invacare top-end hand cycle. reverse is better
A bit expensive, but the weight saving is very decent!
My trike have a Cromotor, 75V with a custom Dropout that was actually laced at Holmes hobbies! Regen is fairly insane on this one, it can even lock up the wheel.
Quite a few of my wheels out there! Good to see you coming through!
I'm running 48v 1000watt 30 amp bat powered front hub motor and engineering a drum brake also working on a belt driven mid drive to assist my 5 seater vip Pedicab. I'm very interested to learn all I can about this design and others as they could make my job fun. Please feel free to blow me up with information that can be helpful
Thank you for saving me all lot of money
Thank you this was extremely helpful. (First minute was annoying though)😊
The C3Strom Bike I own has no Spokes, just a Rim. Less noise and maintenance regardless of it being heavier. There are definite pros and Cons but I just wanted something Stable and worry free, rugged and reliable. I only wish the Brake pads lasted longer and were more robust.
I think there's so much room for new designs for Ebikes though. A dedicated Frame(bike) for that type of wheel wouldn't be too much to ask at all in my opinion. Even if it's just a matter of Sourcing Parts and Machining in a Batch Scale. Similar to what LunaCycles does. I'd buy all the Ebikes if I had the cash😝 Love it! The Video makes so much Sense in justifying design from what I can see and know about through my very limited experience. 👍😎🙏
You should re-consider your use of close-ups, and know the exact difference in the failure rates of the two types of torque transfers.
It's all documented on endless sphere forum, which has a better memory than I do. The raw numbers aren't so important IMO, except that this hub is proven far more reliable in terms of torque transfer. You can find the numbers if you want exacts.
I have a mid drive bafang motor i use my own 84v controller what's a 72 volt battery i get it up to 110 kh but if i start at dead stop motor makes a whining noise and I have to Pedal and slowly put my finger on the throttle to get to go do you know why this happens I can't figure it out
110kh with a bafang midrive? That's not hapening post a video or you're lying.
Nice video but.....question: how come you.ve opened a greentec motor but on the inside is only the rotor and the outer shell. However the Neodymium magnets are nowhere to be seen ?
i just read that 142mm have the same spacing than 135mm so a 142mm hub would fit in a 135mm is that true?
Hey John, I'm trying to electrify a recumbent Delta Trike, the Sun EZ-3 USX HD (two wheels in the back, one in front). It needs to be really fast in that I will be using it for BikeJoring (riding with the Dogs). Can you, or would you, put two of the rear hub motors on the trike or would you use the X1 Pro Gen 2 or Stealth? Of course, bikejoring (dryland mushing) is all done on dirt. Let me know your thoughts, thanks in advance.
How do I fix the wire in the control box 36 v 350w
I want this on my gotrax scooter. I can use some straps and some 2x4 wood (I don't have a welder and scrap metal).
How do these motors go for water resistance ?
i have a 3000w hub motor and i NEED torque arms i went to a laser shop and let them cut out custom torque arms 8mm stainless steel works perfect! and the nuts i tighten with a torque key to 40nm. but i would love to have a thru axle motor but i didnt find a 12*135mm motor only 12*142..
How do I Adapter kit that dude to my bomber
Awesome stuff brother. 😇🌎💫
we are building bicycle trailers to explore the Baja outback. Our trailers will be powered with regen. The motor you are profiling looks perfect for us.
We could use your expertise.....
What are the advantages of the all axle over the gmac motor. Love your presentation.
the torque arm situation and reliability. The Gmac will have better torque density due to having gears. but gears can break and will wear out over time
I've been building a 2wd Vector Typhoon based ebike with that hub in the front, phaserunner as its controller and Marzocchi Monster holding it. cant wait to use the bike (which is going to be VERY soon)
let me know if you want pics, great looking bike.
sounds lovely, i want pics! I'm new to all this and pleased i found John, thank you
@@MakeAllThingsBeautiful leave your email address and i'll send some
If you would please send me some pictures also and my email is: onetwoflush@yahoo.com Thanks!
me too. thanks. stepbrothers@gmail.com
I have been wondering why my ebike seems to lurch a little when starting off, it must be the slip fit torque arm not engaging tightly with the axle. Only 200 miles and the symtom has progressed. Great stuff.
Good video and I agree, Grin Tech Rocks :).
I got a new extreme bike Xtreme Trail maker 350watt 36vott 10mh love it i want a way better batt drive and comp
Do the Hub Motors go on the front wheel?
would it be feasible to use a hub motor on rollerblads?
Great video with the needed details. The lighter weight GRIN hub = lower rotating mass and lower battery drain.
Although it's a new bike this year, eventually I will replace my E-CELLS Super Monarch Crown front and rear motors with Grin Tech hub motors and controller. That they are made in Canada makes it just that much nicer. My folding solar "blanket" is a Canadian made 220 watt Off Grid TREK to charge my BLUETTI AC200 MAX power station that charges my two E-CELLS batteries when I'm car camping/hunting.
Right on!
I live in San Francisco CA and I have the 2 motor and never have problem pedal assistant for hill for fucking great 👍🏽 no problem the motor is from ebikeling .! 💯👍🏽👌🙏
Thanks, looks a good refinement of a direct drive hub motor, I would prefer a geared hub, but I know this is not everyones preference.
grin also has a very nice direct drive (without freewheel) they have worked on. Can't have the all axle without a full planetary redesign they probably won't tool up for soon, but if you bug them too maybe it will happen. I would also prefer a geared motor but will take the resilience and efficiency of the all axle in the mean time.
@@HolmesHobbies as the comedian said: "You can't have everything...where would you put it?" The smoothness and quiet operation of a gearless (direct drive) hub motor is truly a wonderful thing...The inherent lower torque of these motors is only a downside when starting out from a stop or confronted with a sudden uphill grade change. But these two conditions only happen or make up a very, VERY small percentage of the total ride time.
For the quiet and smoothness I just LOVE my gearless/direct drive bike....if I'm bushwacking on dirt trails / single track I use my geared hub motored bike....face it, for EVERYTHING you need TWO bikes. It's as simple as that.
I use a similar motor to run my house, comes from a washing machine. You know they make the best generators.
Can you put one of these on a Windcheetah?
I think Grin is a great company that is moving the ebike industry forward. I would like to see a smaller lower torque version of this motor for street or commuter bikes that run higher speeds and don’t need a ton of torque.
This
seen a video where someone tried making a sort of gearing for a DD motor where the windings are slowly moved away from the magnets which causes the magnets to rotate faster due to field weakening, it ended up producing nearly 2.5x the original speed but had 3x less torque
Thanks John! Random question: I have a 48V battery and a 48V controller. What would happen if I ran a 60V hub motor on this otherwise 48V system?
Typically it will just be slower. Much more fun to run a 48v hub on 60v. Or my more typical 36v hub on 48 to 72v.
@@HolmesHobbies Definitely sounds funner to overvolt than to undervolt! haha
@@HolmesHobbies ammm but in top of being slower I guess this going to generate more heat also, right? 🤔
I'm pedaling a 29" bike equipped with full suspension and quick release axles. Does anyone have good recommendations for such a set-up? I stand 6'6" tall and weigh around 240 lbs.
Yupp.....Grin Technologies
How many nm of torque 48v and 52v?
I just purchased a hyper scorpion and I am having a lot of fun riding around LA. Looking forward to America made improvement for the cheap Chinese made parts.
Canadian. I just discovered them yesterday. Looking forward to paying them a visit after they re-open to walk-ins after COVID.
anyone running this on 72v and high ah and also can this motor handle going to 60mph easy without overheating and what not?
Thank u
Great video, very informative. The link says you've moved?
You mention front mount,, anything on rear drive?
I’m very interested in using this motor in an EUC (electric unicycle). I just don’t know the difference between this and the Chinese motors used in EUCs to know. EUC motor run off 84v or 100v battery packs. I don’t know if that’s necessary. Anyone know?
Building yourself or buying a kit? Happy to help out with what I know but I have not done a unicycle yet, I do custom builds in Australia
You had me at 2-strokes.
Can use mahinrarodio e.or petrol?
Do you ever see something like this coming into RC? Whether it be directly on the wheels, directly driving the driveshafts like some TT setups almost do, etc?
Doesnt scale well. If we remove 35:1 gear reduction we will need 35x larger motor for the same torque.
@@johnrobholmes Makes sense. Just figured id ask. Always curious where the future of motors and RC will take us. :)
where in canada are you?
also is this what you would get for a electric scooter? specifically a dualtron.. i want to upgrade my motors for more power (i have it almost running on vesc now haha **almost)
How many volts and Watts? Or is there a variety?
Let's do a cyclekart build with these!
Can these go on the rear wheel?
whats the specs if this motor? whats speeds does it reach?
You sell a 26er rear wheel mtb?
1wheels kit
we finally worked out how to modify these grin all axle motors with liquid cooling and using fast wind wind version with 84 volts these motors should hit the close to 100kms per hour .ive still got abit of saving to do here in australia ,they cost alot to buy them here close to 1000 au dollars i think
Great product 👍 Why are they only making front wheel motors?
I have a Lectric 3.0 would one of these new motors work for my bike for extra power to climb Bay Area hills?
Possible, not easy. You will need to custom lace the wheel and find a place for all the components
@@HolmesHobbies Ok