I think it is OK, the only thing I am not szre about is the center distance of the motor mount…I think it will be OK, in the worst scenario you will have to buy shorter or longer belts…
And also the batteries wouldgive you about 40kms of range, the 10S1P might be enough for you, it depends on your personal attitude
I’ve decided to switch two things: I will be going with a 170kv 6374 maytech motor because it has a sensor, and mainly because it it sealed, which I hope will help with keeping it protected from water/sand/etc, and I will only be going with 10s1p (2 5s batteries wired together) since I want to keep things simple and I should still get about 10 miles of range out of those batteries. I will probably be ordering all my components tonight. Now I have to wait almost 3 weeks until everything arrives…
you should upload pics and update on how good it works…
Currently waiting for the last few parts to come in! I will upload pictures once I start building the board.
OK! The last of the parts arrived on Friday, and I spent Friday evening putting the final build together. I had put together an “intermediary” build that was pretty sketchy but now everything is pretty much final as of now. If you have any questions about the parts or anything, I’ll try my best to answer them.
Performance: While I have not been able to measure the percent grade of the hills I have climbed, I can say that it easily goes up hill that are difficult to climb on a bike. I was able to final feel comfortable going to full throttle today and I peaked at 25mph, although that was on a very slight downhill. Going back up that slight downhill, I reached a max speed of just over 23mph, which is faster than I ever really need to be able to go. As far as range goes, based on calculations it should be just under 10 miles, but I have not tested this yet.
Notes: The most difficult parts of building the board were mounting the gear to the wheel so that it was properly centered (it’s still not perfect, but good enough) and also getting the belt not to rub up against the wheel since the gear on the wheel was seated a little too far into the wheel. I solved this by melting down the side of the wheel with a soldering iron a little bit and adding two extra speed rings on the axel between the truck and the wheel. This causes the belt to have a little bit of overhang on the gear, which may affect the lifetime of the belt. I don’t think it will, but we’ll see. The total distance I do every day is around 4-5 miles, and it varies from open road- good and bad pavement- to sidewalks. This thing has 90mm wheels which I specifically chose so that it could handle cracks in the pavement and going on sidewalks. Despite the size of the wheels, riding on sidewalks for too long is a pretty rough ride, uncomfortable, and feels like I’m abusing the board. So far it has handled everything well, although I had to apply a liberal amount of loctite threadlocker to every single screw and bolt on this thing to keep it from self-disassembling. Overall, I spent a lot of time planning this out ahead of time and the whole project seems to have gone fairly smoothly. I should mention that while this thing is very fun, it is also quite dangerous, and that everyone who decides to build one of these should test their boards incrementally and regularly check on every component for any signs of failure. Also you should wear a helmet at all times.
Pictures: Here’s what the final build looks like. I have the stickers on there for one reason: I take this on the train, and people these days get scared when they see bulky boxes strapped to objects with wires coming out. These stickers are an attempt at making the board look more friendly, and it has worked very well- I get a lot less stressful looks from strangers now. This is not something I had initially considered when making the board, but it should definitely be a part of the planning process unless you want to find yourself on a watch list somewhere. Thanks to everyone who helped!
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So…How are the sealed motor …any-issues… -is it really water-tight… thankyou
Sorry for the late reply- so far no issues with the motor. I’ve gone through small puddles and it has gotten wet but it still works perfectly. I did damage it slightly at first since I had the belt tension way too tight which caused the shaft of the motor to be pulled in towards the wheel at all times. Because of this I had to replace a C-clip on the motor shaft but otherwise the motor is still going strong. Would reccommend.
UPDATE: The motor motor mount, which is held onto the truck using three screws with point to dig into the aluminium, don’t seem to be a great solution. I have ridden this setup for about four months straight almost daily, but now the motor mount is coming loose and is rotating around the truck. I don’t have the time right now but I am planning on drilling three holes into truck at the position of the screws, and I will get longer screws so that they go down into the holes in the truck. This should be a permanent and solid solution, although drilling the holes at the correct locations and angles will likely prove to be difficult. I will keep this thread updated if there is interest.
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Yeah same thing happened and I stuffed up the hole alignment by a few mm so now the belt rubs on the wheel a bit
Did you end up using that ebay transmitter/receiver that you linked? What is it’s behavior when it loses signal or loses power (can test by flipping the board upside-down and removing the battery or walking to another room)? How do you like it?
I’m looking for an alternative to the Nyko Kama which doesn’t have a fail-safe if it loses power- it just keeps doing exactly what it was doing when it had connection. Thanks!
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I’m certainly interested. Keep us updated! 
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No, I did not end up using the linked remote. I decided to change to one that was smaller and would fit in my pocket easily. The one I am using I will link below. It is good and has never lost connection with the board while i’m riding it although in the city (probably due to interference) if I do not touch the throttle on the remote at all for about 30 seconds, the motor begins to ‘twitch’ a little bit but nothing more. Also, if the board is plugged in and the transmitter is turned off, instead of staying neutral or braking, the board goes full throttle which is a little scary. However, I have had no problems with the transmitter or receiver and I ddo think it is a better alternative to many of the options currently out there.
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You need to set the failsafe on your VESC so that if the controller disconnects you don’t accelerate at full throttle. Read this thread: http://www.electric-skateboard.builders/t/board-got-stuck-on-full-throttle-with-no-brakes-what-could-cause-this-related-story-slid-my-e-skate-for-the-first-time/26314
Hello, i am building my first build. here are the parts: turningy aerodrive sk3 6374 149kv 3 zippy 5000mah 3s 45c batteries xcar beast 120amp esc 2.4ghz remote i have all the connectors and mounts/pullys How fast should i go and how far will i go?
oh it is also in series
i cried after read the first paragraph of the first post.
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You could pick up one of my mounts 
http://www.electric-skateboard.builders/t/new-circular-truck-motor-mount-survey-posted/33609/28
That will not work. An Xcar beast esc can only handle 6s not 9s
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oh sorry i meant 2 of them lol