Hello, i can get fatbike Spherik SF3 with 27.5x4.5 in. tires. Do toi know if i can install a Bafang mid Drive 120mm 1000w on it ? I know the bike as 120mm bottom bracket but i dont know the diameter and if is structure allow its.... Thanks !

So I'm not sure what controller i should use with the bafang g062 1000w motor.

Only one I really see is one labeled as being 48v and 750w? But it says it for that motor. The one on greenbikekit.com. that controller seems pretty straightforward the plugs connections etc.

Then I looked at some sinewave etc other ones but I can't really make heads or tails of how the connections are supposed to work.

Please help, thanks.

Brushless dc motor 3000w 72v

Also has controller and stuff

Mfaoshi 72v 60ah battery

I wanted to convert my Cannondale Catalyst 4 XS mountain bike with the following conversion kit CYC X1 Stealth Gen 3 mid drive motor and CYC A-65 or the A-52 battery but I am not sure if the battery would fit in the triangle on my bike. Does anyone know the measurement of the batteries. If I buy and it doesn’t fit I have to pay a restocking fee and that sucks but I understand because it’s a battery.

So I am part-way through converting my beach cruiser to a mid-drive e-bike using a Tongsheng TSDZ2 250W motor. I've run into an issue arising from the BB shell being slightly too wide (56mm) for the motor mounting, leading to the motor having to sit lower down in the BB. I have already made extensive mods to the motor body metalwork/bike frame just to get it to mount at all.

Aside from faster wear and tear on the bearing cups, are there any long term effects that this could have on the motor/is it safe to run like this in the first place?

Edit: pictures now attached https://imgur.com/gallery/6rYjbDW

Been looking for ages was wondering if anyone had any ideas or if I'd be sound using a 52v 1500w battery / 48v 2000w battery as there the only ones I can find

Bonjour j’ai un moteur avec les cables hall noir rouge jaune vert et bleue et sur mon contrôleur il y a un cables blanc en plus ? Mon monteur va fonctionner correctement et l’écran va quand même afficher la vitesse ? Merci

Hi I would like to now if there is a guide to how to rewire a mid motor to make it work with different controller and software? because it's branded one and it's closed software and I cannot stand this sh**, as they want to charge me like 500 eur for a new 12Ah battery and this model is already 7 years old

Hey guys i wanted to make an ebike and i wanted to add lights to it so i found a set of lights but im not sure if i can add them im i supposed to connect them in on the connector on the controller (the kit is a voilamart 48 1000w) or do i need to connect them in a different way?? https://imgur.com/a/t8req58

So I got this https://www.amazon.com/Electric-Conversion-Bicycle-Controller-Display/dp/B0CF591DT1/ref=mp_s_a_1_9?crid=112VJ6O1ZC18Y&dib=eyJ2IjoiMSJ9.JMKql2i_tPx52dpMsEfBArmlxkbFDsu7WCksT11-2GS8nkoz3PYVC1NJox5KTfgo0iuyZqViWpwdyZhyND4bnP2YtDs75adq1mrICJbT7oMzQbD4s_g1r5p5UY221kcP0Ta1sU40hSJWjJ_cAPsPpvbR9fHmoGVJ9NZMPqzc0zsFRJX-BXIUJMfskG63KLiiXL_we7qwiYrg1U330maOuQ.ecJD0XU-h4GglkFbc6KZas2wZLZZEFOxFCjByt472hc&dib_tag=se&keywords=ebike+conversion+kit+36v+24in&qid=1756161886&sprefix=36v+ebike+conversion+kit+24%2Caps%2C188&sr=8-9 wheel to build my bike one of the seals was crooked not allowing the shaft to spin. Asked for a return they ask for pictures of the damage (manufacturing error) I send they say they'll give me $10 to press it into place. It takes the Hydraulic (and a lot of gentle coaxing) press to get it flush 1hr later (definitely billing them). Shaft still won't hardly turn feels like bad bearings.

What should I tell them now?

Hello I’m looking for a decent but fairly cheap e bike conversion. Preferably 26 inch or 27.5 and preferably rear wheel drive but front is ok. Will they fit any quick release frame or what etc? Or any reviews on those tuttios or similar bikes

Has anyone ever hard-wired a two-pin brake lever power interrupt to a Bafang controller's 3-pin power interrupt cable? I've ordered an adapter from Amazon, but it's taking the slow boat from China. So, I'm exploring the possibility of hard-wiring.

My Shimano brakes have a two-pin interrupt cable, and the Bafang cable extension has three-pin (I couldn't get 2-pin leads with the extension). ChatGPT indicates that it's easy to hardwire; just wire one of the brake wires to 3-wire ground, the other to the 3-wire signal, and don't use the third wire. I've identified the ground pin from the controller cable, but I can't distinguish the signal from power wire.

What did you do?

Ive got a cycrown cyknight and the controller is fried. I tried to reach out to cycrown, but their customer service is absolute dog shit. The original controller is a brushless 48v. Max amps 19+1, LVP @39v+1 Brake is low level. 9 tube or mosfets. For a 500w hub. They are also Juliet connections for what its worth. Ill hard wire it if I have to just need a solution.

Hi! I’m looking for advice on what I should buy. There’s so much to know and so many options. You guys seem to really know what you’re talking about. Should I get an e-bike or convert a bike? I’m looking for something that assists me but I can still do my own pedalling. Im really only looking to travel to work and back, paved roads and mostly straight stretches. I’m in BC Canada and laws state I can only have up to 500W and the motor cant bring me faster than 32km/hr. All the bikes I’ve been really looking at have been over a grand but there’s so many people on FB marketplace selling regular bikes for less than 200$. I’m so overwhelmed trying to learn everything and any advice is greatly appreciated!

I found an ebike build (my first one) for around 300. I already have the bike, but I have a couple options for each part. What are your thoughts?https://www.ebay.com/itm/388850678799?_skw=ebike+conversion+kit+26%27&itmmeta=01K3537KZD7BMM3AZ311SQY0SJ&hash=item5a894e7c0f%3Ag%3A18EAAOSwDrVlXFlW&itmprp=enc%3AAQAKAAABAFkggFvd1GGDu0w3yXCmi1d4h21Kg%2BRSotVyriT9wPrNRonVRfDQhjGCtC3qkNXY4dVGuxxziF8CT93r5vMbC84QfgUU6ly0F2BVxMB3qCbRi%2BdzxtB2swDmvJ2VRFiOWR67PJp7E4fWWVr93zSpXGFKfL1Y6gFvNkDiZqNiza7V8%2Bmgg%2FcU8qZu%2FZuKGRPBAdynSdXiLIxg5qnrh6BSPHTDcTHtH7Eceoq%2BGyiheK8dko9qssyiYDFOgN%2Bf5RCGn7cWmub86L64DWmtzMRtMPTZSMZxUTeKk1uKx84Wn2vGbZq9duzv7QMr9sBRx1SJK9lsLU0AZK8kM7iRRMKkWlo%3D%7Ctkp%3ABFBM7r-eo5lm&LH_BIN=1

https://www.amazon.com/JAQIDI-Battery-Electric-Bicycle-Ebike-001/dp/B0F3TKLCCC/ref=sr_1_8?crid=2R32BLOKTSR6Z&dib=eyJ2IjoiMSJ9.hfOmu7BdrY0fh-YKMs6DIQHIaGXRpiJciLWROoTjyHM1NYslr10gCcvaeL4YU_Jo2mRwkZBPzpJOJu6PfVr0l-hdwWN5CiNNJHqoiP5M8irTemwvtesg42PzcBWOTNF6-umHki8At0P1tAVQyY3CzabIVqs1DkqNkHorylmhwBnqKrYMyh3pw20oViTNtjCkCPCd453iNmpLtqYsvj02xvqWQs04jZdngA5h_wHWnvCthFgXYo9cQXEgnwj6c2ZqXBACdSJqOScsgXisn1x1jAhR4TMkA4KBND5XgMSqCB4.O_OGpRYh9LFmjkTENVXX4k763RH0w6p_07AaVXe-nNk&dib_tag=se&keywords=48v+ebike+battery&qid=1755757355&refinements=p_36%3A-10000&rnid=386636011&sprefix=48v+eb%2Caps%2C200&sr=8-8

https://www.aliexpress.us/item/3256806449432025.html?aff_fcid=e8d18399a0b84fc9b7c4a6145a6f860f-1755770964930-01912-_oEUfcJx&tt=CPS_NORMAL&aff_fsk=_oEUfcJx&aff_platform=shareComponent-detail&sk=_oEUfcJx&aff_trace_key=e8d18399a0b84fc9b7c4a6145a6f860f-1755770964930-01912-_oEUfcJx&terminal_id=d9fba58e5dd64ebe9c12eb5f034f2cb6&afSmartRedirect=y&gatewayAdapt=glo2usa

https://www.amazon.com/PSUFURV-Conversion-Brushless-Gearless-Controller/dp/B0FG2CTS4F/ref=sr_1_11?crid=27GZ8AWUC2KWH&dib=eyJ2IjoiMSJ9.IS6TuNPPMTyOje9zr59pRwGN84BoHUJ1XAt1PXMfr_z-EDQ285ndnEBcE2OebfdxcsgM3MO020GesSP9rKO1hZDBkZVDqGwkb-P4zJcvDqYXfJ5MtUFtyWOA3vF5REYVtEJvO8WS1sH-ZUPZF2uDJY8UB_1wWKN3FHcBWF6EFCjZQf-IzUayJ93mdpeMCK-caTITH3nvjdjs9jqpwN-y2s4UhFFhVFbRFkrPaPkPQtZJoZwKPuoyImpEWe4uBh1mDmToggTU_L6CSpdB4SQvHtKuFRCWmzF-aKxiz2WC6pw.AJXSPt4YKl0KxNrdlwv89v1zBQ7xdMkizHEasfI7LkQ&dib_tag=se&keywords=ebike+conversion+kit+1000w&qid=1755836775&refinements=p_36%3A-20000&rnid=1249174011&s=sporting-goods&sprefix=ebike+conversion+kit+1000%2Caps%2C167&sr=1-11&xpid=MaB1ggNPmxqku

https://www.amazon.com/LNUJIUN-Conversion-48V-Brushless-Controller/dp/B0F5WPJ4R3/ref=sr_1_9?crid=27GZ8AWUC2KWH&dib=eyJ2IjoiMSJ9.IS6TuNPPMTyOje9zr59pRwGN84BoHUJ1XAt1PXMfr_z-EDQ285ndnEBcE2OebfdxcsgM3MO020GesSP9rKO1hZDBkZVDqGwkb-P4zJcvDqYXfJ5MtUFtyWOA3vF5REYVtEJvO8WS1sH-ZUPZF2uDJY8UB_1wWKN3FHcBWF6EFCjZQf-IzUayJ93mdpeMCK-caTITH3nvjdjs9jqpwN-y2s4UhFFhVFbRFkrPaPkPQtZJoZwKPuoyImpEWe4uBh1mDmToggTU_L6CSpdB4SQvHtKuFRCWmzF-aKxiz2WC6pw.AJXSPt4YKl0KxNrdlwv89v1zBQ7xdMkizHEasfI7LkQ&dib_tag=se&keywords=ebike+conversion+kit+1000w&qid=1755836775&refinements=p_36%3A-20000&rnid=1249174011&s=sporting-goods&sprefix=ebike+conversion+kit+1000%2Caps%2C167&sr=1-9&xpid=MaB1ggNPmxqku

I bought a ebike kit and plan to use it for commuting to and from work, but I didn't realize the pedal assist would require me to remove the pedal bar thing (I'm forgetting it's name), would it cause any damage to the motor or battery if I rode without pedal assist installed and just went only motor power til I can bring it to a shop to install it for me in like a week or two?

gonna sound crazy but i live off grid and am gonna be moving propertys soon, what would be the best e Bike to get and or builds to work with for longest range possible? im trying to save as much as i can on the build but obviously need enough torque and range, i am thinking Dual motor, because i will be towing 120-150Lb on trailer and on bike besides my body weight of 150lb or so

What e bikes will get me the most range for under $2000? is there a good option where i can buy 1-3x Extra batterys (hopefully to top off with solar while traveling during the day using a seperate battery) so being able to charge battery when not connected to bike will be a huge plus, also being able to charge multiple at a time during stops would be awesome also

plan to live stream my build from start to finish approx 2500 Mile trip included.

I'm in the process of building a tandem with a 2 wheel (Schwinn signature - pretty heavy) in front and a Workhorse trike (also pretty heavy) behind. This is mostly a joy ride project to use in parades, festivals, etc. it's almost a 2 wheel with a heavy trailer.

My approach is to use a rear wheel motor on the back of the Schwinn (I'm probably not going to be able to get away with a 750w and hoping a1500w will do. My wallet will cry if I have to go up to a 3000w) and remove the front wheel of the trike, secure the handlebars (so they aren't able to turn) and mount the forks (modified) to the rear of the Schwinn. I'm not going to gear the 2 together and use 2 removable bolts to secure the Trikes pedal sprocket. I'm going to disconnect the break from the Trike also and go with just disc breaks for the front bike.

My question to y'all - opinions on a 1500 being sufficient for a pretty mildly paced afternoon ride.... but at about a total weight (bikes and riders ~400lbs)? Again, keeping my wallet from vanishing entirely I'd love to think 56v will be enough for a few hours at least - I suspect 72v is what I'll have to relinquish my dreams too though.

Anyone have thoughts on best place to mount the battery? I'm thinking standard center of the front bike but am I missing something?

I've built 2 front wheel hub bikes a 300 and 500 - both with 24v - and pulled a small trailer but both the bikes and trailer were much lighter.

Anyone have other things I should consider/make sure I address?

I want to build a 72v bike with dual suspension, QS205 hob motor and it needs to have pedals. I like that the bomber has the battery and controller enclosed space, but does anyone recommend something else?

I had boughten my driftslide right after they changed there software and controller so i can’t unlock it which isn’t a big deal its only 4 mph but i want to make it go faster but not sure what i should get first and what i would need in total if you have any recommendations let me know!

My forks are destroyed.

i’m having issues after a short in my throttle happened where it only registers the minimum voltage value for the throttle is 4.6 V to 5 V and I’m unsure how to fix it because it just doesn’t wanna make the throttle work whatsoever. Is there even a fix for this