Are aftermarket e-bike conversion kits a risk worth taking?

[Dadam]

I had this kit a couple of years ago and don't recall having that problem with the controller. I'm sure I was reaching 15 mph on levels 3 and 4. I only used 5 on the steepest of hills. I also got caught out by the hub width but I didn't bother redishing the wheel. But getting the wheel in and out was a bit of a nightmare. I had the rack kit and my bike was not very stable with all the weight so far back and high. I sold it and bought a Wisper 705se instead.

How fast did it go in levels 1 & 2 before cutting off?

 

[PaulM]

How fast did it go in levels 1 & 2 before cutting off?

I think 11 or 12 mph in second but it's a long time ago now.

 

[bonzobanana]

I think only the battery packs are a safety issue there are no obvious safety issues with most kits and some of them using direct drive hub motors can be very reliable but the issue is often which battery pack they are paired with and of course the battery quality. Some people go cheap on battery packs with lower discharge capacity than ideally the kit needs.