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My Wheel Failure Statistics


Marty Backe

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@Wolverine that is not a bad idea to update after 2 years :)
So here is my update of EUCs I owned and close friends EUCs failure rate with the mileage from May 2016 to July 2020, does not include failures due to pilots mistake or flats.
Of course these datas are not accurate and do not represent the global market of EUCs, it's just my personal experience ;)

Firewheel

F528 : fried board & BMS (500km)

failure rate : 100%

 

Gotway

MCM4v2 HS 680Wh (2300km)

MCM4V2 HT 680Wh (1600km)

ACMs+ 1300Wh : BMS issue (2000km)

ACMs+ 1600Wh : fried board (15 000km)

Monster 1600Wh : loose nuts (6800km)

Tesla 1020Wh (4600km)

MCM2s 520Wh (500km)

MCM3 340Wh : strange behavior of the EUC when reaching 80% alarm (3800km)

Tesla V2 1480Wh (800km)

Nikola 84V 2100Wh : oscillation at slow speed / PCB (9200km)

Nikola 100V 1845Wh (unkown mileage)

MSX 84V 1600Wh (7000km)

MSXv2 84V 1600Wh (500km)

Monster V3 100V 2460Wh : loose axle nuts (8500km)

Monster V3 100V 2460Wh (4300km)

MCM5 800Wh (1000km)

Msuper3s+ 2000W 1600Wh : loose axle nuts (9800km)

Msuper3s+ 1500W 1600Wh : broken inner shell (5500km)

failure rate : 44% (Gotway has improved on some models (MSX, MCM5..) but still some recent EUCs like Monster V3 still have issues of the previous generation)

 

Kingsong

KS18A 680Wh (200km)

KS14C 680Wh : bent axle (3800km)

KS16S : BMS (4000km)

KS14S (unknown mileage)

KS16B 680Wh : broken pedal x2 (3500km)

KS16B 840Wh : trolley handle x2 (unknown mileage)

KS16X : cut off with no warnings, waterproofing issues (200km)

KS18XL : Fried BMS batteries not charging (2500km)

KS18XL (5400km)

failure rate : 66% (About Kingsong being more reliable than gotway, it is not what we have noticed and most of the kingsong owners I talked to are kingsong fans who were convinced of the reliability of kingsong eucs)

 

Inmotion

V3C (4400km)

V8 (12 500km)

V5F (1500km)

V10F (2200km)

V10F broken pedal but maybe riders fault ?? (6100km)

failure rate : 20% (I would say Inmotion feels very safe overall)

 

Rockwheel

GT16 858Wh (2500km)

GT16 1036Wh : Water issues -> dead cells + BMS (3400km)

GT16 1036Wh : Water issues (+5000km)

failure rate : 75% (water resistance of the GT16 is not good at all, not riding in the rain avoids most issues)

 

IPS

i5 (1200km)

S5 : motors locked (700km)

 failure rate : 50% (could be because of a bad dissassembly)

 

Ninebot

Z6 : BMS + cells(2200km)


Z10 : BMS + cells (1000km)

E+ : BMS (3500km)

S2 (1300km)

failure rate : 75% (mostly an issue because of the Z series)

 

Sherman

Veteran (3500km)

 failure rate : 0% (not enough data here)

Edited by Pingouin
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17 hours ago, Wolverine said:

It is time to wake up this thread. New information has come out and it has been more than two years since the last post. eWheels claims that Gotway and King Song has lowest control-board failure rate. Inmotion and Segway failure rate is even higher. Taken directly from the table: Gotway (1-5%), King Song (4-6%), Inmotion (5-10%) and Segway (>9%). What do you think, is this correct information based on your experience? Batteries are another very important component, but unfortunately, I didn't find any failure rate information about the batteries. What do you think of it?

I spoke with ewheels over the phone a couple years ago about InMotion control board failures and it was really interesting. They said InMotion tends to have a slightly higher than average failure of boards where they just won't turn on for some reason--but on the flip side they have a lower than average failure of boards while in operation/while being ridden (so if it turns on, then you should be fine). Never really seen this distinction talked about online, but ewheels spoke about it as if it was pretty definitive/proven. Personally I'll take that tradeoff any day of the week.

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