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GotWay MCM4 (carbon) Asking $400 obo Located in Hollywood, CA pics: https://imgur.com/a/cWGNzwq Two pack/680Wh or 520Wh (not sure which battery) Top speed around 18mph 17kg/ 38pds Approx 35-40 miles on a full charge Perfect starter/practice wheel Solid on/off road Low mileage 114.5 Has scuffs and marks consistent with use but runs great 14" wheel is in decent shape Charger included Local Los Angeles or San Diego pickup or delivery would be ideal. Open to shipping -- Bought used a year ago from seller in San Diego and didn't ride often due to travel. Selling because upgraded to MCM5V2 Darkness app works fine although haven't figured out alarm settings. Has kept me at safe speeds while learning how to ride Feel free to reach out if you have any questions

please skip to bottom for potential cause if post is too long for you I. Intro Hi all, thank you creating this community. I'm excited to join you, despite having to ask for EUC help with my very first post here. Hopefully my story can help other people or serve as a cautionary tale for anyone who thinks cutoffs only happen because of speed or overleaning. I was lucky with my fall but it could've been way worse. II. Unexpected first cutoff and fall ~25km/h I bought my MCM4 (HS 680wh) a month and a half ago second hand ( ~970km) and it served me very well for 200km, until it suddenly cut off without warning nor tilt-back while going around 25km/h. Having read a lot of posts here, I assumed it was user error, maybe an uneven spot on the bike lane, maybe 80% battery wasn't enough for my speed. I was just happy I had a helmet and wrist-guards on, and managed to do a roll, so I only ended up with a slightly sprained ankle and a bit of road rash on my lower back. Until then I had ridden 7kms on that journey and had a pause of 2 hours before heading back and having a cutoff on the second minute of riding. The bike lane it happened on was separate from the road and despite that my EUC went on the road during rush hour. Thankfully there was a traffic jam and also it somehow managed to miss all the nearby cars. Yet, I couldn't help but think about the unsecured bike lanes I rode on shortly earlier that day and what could've happened at the wrong time and place - I'd rather stick to sidewalks and slowing down for curbs and pedestrians. I carefully rode the remaining 7kms home without any further issues. III. Weird low-speed tilt-back and cutoffs The following days I had short trips and casually rode around to see if I can trust my EUC after my first no-warning cut-off. Everything seemed normal for a week and just as I had written it off as user error I got some tilt-back while going around 5km/h. It was so unexpected that I thought I'm imagining things but I carefully finished my journey. Yet on the way back, an hour later, after 3 minutes of normal riding it happened again around 10km/h, this time leading to a cut-off after I stepped off, followed by 3 beeps similar to when it has fallen to one side and a 4th beep when it resets. I turned it off for a few seconds and back on and carefully rode home. I think it happened a couple more times for the remaining 2-3kms The next day everything seemed in order, I spent a good hour or so riding back and forth without issue ... until I went out later the same day. I rode 1km and again got the low-speed tilt-back and unstable floaty balancing. Only this time it kept losing it's balance, cutting off and resetting, even without me stepping on it, just by rocking it back and forth with my hand, in fact I couldn't push it with the trolley without it failing to balance. After I left it for a couple of hours I could at least push it with the trolley so I started wondering if it's something to do with the battery, despite it being around 70% Today I decided to go out so I can record videos of it failing, as well as to check current, etc in the EUC World app. I rode cautiously while recording video for 10 minutes without it failing. I turned it off for 5 minutes and tried again and this time it did it immediately. I went home, charged it to 100%, went out again and repeated the experiment, with it initially working OK but then cutting off in less than 5 minutes of slow riding. IV. This doesn't look right?? Since it started consistently failing despite the low speeds and fully-charged battery, I decided to open it up and look for some clues, even though I'm not knowledgeable in electronics. I got the first cover off and immediately saw this. I have no idea which connector is responsible for what, but it looks this one has come undone despite the glue/paste it was covered in. I would be very grateful for some information and advice: Should I just plug it in? Should the batteries be disconnected first? Do I have to unscrew the whole board? Do I have to watch out for something else? V. Edit/Update OK, so turns out this connector is for the USB and should be irrelevant. Still looking for a solution. I haven't checked out the capacitors/etc yet but will look into that. No obvious issues with capacitors, mosfets or wires that I can see, at least.

The manual makes a point about a specific order of connections when charging a wheel. I have MCM4 HS but I suppose most Gotways should be nearly the same in this regard. The order is: To charge: * Connect the three-prong connector to the wheel * Plug the charger to the wall socket After having finished charging: * Disconnect the three prong from the wheel * Unplug the charger from the wall socket Is this the ritual other Gotway shamans observe? I ask because even though I'm ready to accept this nonsense for the sake of preservation of an expensive piece of equipment, I don't like how too much seems to be dependent on a completely arbitrary order that's very easy to mess up. What makes me especially worried: * When I start charging and connect the three-prong connector, there are sparks flying. I'm having a hard time accepting this as normal. * Until I plug the charger in the wall, its LED shows up as green. It's not a problem per se, but I think it's an indicator of a bad electric design. So, should I worry more than usual about this or is this just how those things are?

I recently bought a Gotway MCM4 340wh and it doesn't seem to charge above 65%-70% (~62.25V) according to the android app. Even if I leave the charger that came with it plugged in for hours, it won't raise above this. The light on the charger stays green, so it won't charge further. Here's what the LEDs look like on the wheel when it is at "full" charge: I'm not sure if there should be more green lights on full charge? After riding it for about 8km the battery shows 30% charge left (two red leds) and it also frequently starts to beep when going uphill (voltage drops too low?) so I'm not getting anywhere near the advertised 30km+ range. I opened the wheel and checked the battery and it says 340wh on the sticker on it. Any idea what is wrong with the wheel and can I somehow fix it?

Hi! I'm new to this forum and also to the unicycle world. I've never tried a unicycle before, but I've considered buying my first one since im going to use it as a regular vehicle instead of a scooter/bus/tram etc... I just don't know where to start. I found a swedish shop called greenridestore.com but it is SCAM. I bought a wheel from there but got no response (I was supposed to pay one month later so I was lucky to not pay immediately, so I did not loose any money. Now I want to be "safe" this time buying from ebay or ali express or something since I don't know about any reseller in Sweden. My biggest priority is that it need to be a long distance one for around $1000, and I found the MCM4 680wh to be a suitable one since it goes 60-70km on one charge. Do you have any other recommendation for me? Otherwise I want to have a suggestion of a seller that is trustworthy. Someone people use to deal with etc. Could you help me with that?

At first I was thinking of buying an Airwheel duo to the January Sale where for example the Q3 is 50% off at TheAirwheel.com. But now I´m thinking of getting a Gotway since there is a lot of positive feedback for it. Am I wrong or is it really better please tell me I´m not very experienced Unicycle or whatever you call it user but please dont come up wiht comments that are lead by my not existing experience and only give me some in that way neutral feedback. Now I´m considering buying a Gotway MCM4 thru this link http://www.aliexpress.com/store/product/Reserve-Gotway-MCM4-130wh-260wh-340wh-520WH-680WH-electric-unicycle-one-wheel-scooter-800W-motor-max/1908673_32468490098.html . But now I´ve come to the question where I would really like to know what battery capacity is really worth it and how far i would come with the 260wh and the 340wh option both ordinary and high speed version. And if I ride at about 20km/h with both wheels will there be a difference in distance? Is there a different motor or is it just a different speed lock because on the alibaba page it says that the maximum climbing of the ordinary version of the MCM4 is 35° and of the MCM4 HS version is 28°. I´m just asking because for me it doesnt make sense to buy the none HS version because they are completly the same units but with having a different speed limitation. Has anyone made experience with one of these? I would really apprechiate any answer. Chiiter PS: Sorry for my bad english; if you dont understand something please tell me and I will try my best explaining it. Edit: Does anyone know how it is with the german customs/duty if I order one of these?