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I used a 7070 and had decent performance considering the motor size/mass. 83100 should work better as long as your voltage-Kv-reduction is set up correctly. I also tried something close to a 6384 from freerchobby at first, but swapped it out playing around with things and just stuck with the...

Apologies for the late replies I have been busy with life. @offGridDownUnder My tension system is just slotted holes for the mounting screws. I set chain length with the motor ~1/4 of the way from the shortest side, gives me 3/4 of the slot length to tension, and 1/4 of the slot to slacken for...

I was playing around with a bike last weekend and have to agree, hydraulic brakes are not necessary. I Do like them for one finger use in dh mtb. Now that I ride more and more xc as I age, I will probably replace hydraulic with mechanical. You have to really goof up to contaminate a brake pad...

I was hoping to update this sooner but had some field work and personal stuff come up. Here is my essay for grading. Running this bike with a power limit of 750-1000 W on the CAv3 seems to be the sweet spot for this 7070 motor / battery / controller / gearing. Works very good at typical...

I have an RTR kit and it is great, I have used it on three different frames with different fork specs (All-axle front motor, regular QR, 12mm thru, and 15mm boost). I didn't change any settings for a couple years besides enabling throttle cruise control and regen braking, both of which are well...

The new chain came in, and it is made to spec. If you are in Canada I used this website: iDESIGN Solutions - Canada's Technology Store for Schools & Businesses. Put it on and tightened everything up and went for a proper test ride. Everything worked well. Used a 12T sprocket. @mxlemming so far...

@amberwolf I have done some custom bolts/nuts in freecad for 3d printing and the helical functions in freecad worked without any issue, lots of tutorials and instructions online as well for that. To confirm, the hall order should come out as the below over one motor rotation (for Halls named...

Regarding freecad, I don’t quite know enough about software to explain it properly but here is an example. If you look at my motor mount piece, there are no hard corners, everything is “fillet-ed” to have a radiused corner. If my made a blocky 3D shape, then smoothed it out in 3D my computer...

Howdy, After watching some videos and getting inspired to go a little deeper than a grin ready to roll kit, I thought I'd post my results of a mid-drive here to share. I love my front hub but I wanted to try something with better weight distribution, and less overall weight. I really like...

I just picked up my aluminum pieces today, I will update once I have things spinning.

I ended up ordering a 7070 110Kv from amazon, and a 6384 150Kv from freerchobby. Combined including shipping they came out cheaper than a single 80xx before shipping and duties on my end from any source. This made me remember to order a L1019 connector from Grin! Both motors should work as my...

@Hummina Shadeeba that is a pretty cool frame. My plan is to do the same with a motor mount instead of a custom bike frame, and run a left side drive. Once my motor arrives and a can check the mounts I've designed Ill let you all know how it works out and start a thread of my own.

So to start off, this is my first attempt at a moped beyond a AIY kit (assemble it yourself), and my knowledge of electronics is rudimentary at best (working on it). Phase amps from the controller are still over my head knowledge wise and were not considered. What I do think/know (please correct...

I am planning something similar but I will use my existing 48v battery and baserunner. So far the difficult part is finding a motor with a low enough kv to make sense given the battery voltage and my weight (200lbs + ~30lbs for bike/battery/etc). I have found some potential motors (80xx size) on...

I had a question for thepronghorn which was answered along with the advice to post it up here so please see below: Howdy thepronghorn, I was wondering what grade of aluminum you used for your left hand drive sprocket components (5052, 6061?)? Did 1/8'' material work well for a sprocket with a...