Tire issues with happyrun g50

MFTanK

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Hello all, I just got a Happyrun g50 ebike and I'm having some issues with the tires coming unbeaded and coming off the rims while riding. I'm not sure if it's too much tire pressure or not enough or something completely different. The tires themselves say 20 psi but the manual says 12-15 psi so I'm kind of at a loss and could use some help. Thanks in advance!
 
Hello all, I just got a Happyrun g50 ebike and I'm having some issues with the tires coming unbeaded and coming off the rims while riding. I'm not sure if it's too much tire pressure or not enough or something completely different. The tires themselves say 20 psi but the manual says 12-15 psi so I'm kind of at a loss and could use some help. Thanks in advance!
Buy a good quality replacement tire.
 
A common problem that contributes to this is not making sure the tire is centered on the rim before adding pressure.
Almost always there is a line molded in to the sidewall of the tire that will be close to the rim when the bead is centered correctly. Make sure this line is the same distance from the rim all the way around on both sides before adding air pressure.
If this line goes under the rim at any point remove the valve from the tube to let all the air out and reseat the tire bead so it is centered.
This is a good time to make sure the valve stem is coming straight out of the rim. If it is at an angle grab the tire and a couple spokes and rotate the rim in the tire to straighten the valve stem so it doesn’t get cut or damaged when you pressurize the tube.
Now if the rim is centered in the tire put the valve back in the valve stem and add a few psi of air.
Check again to make sure the rim is centered in the tire. Some times I need to bounce the tire on the floor at this point at a few places around the tire to get the bead centered perfectly.
At this point you can fill the tire to a few psi above the desired pressure.
Now spin the tire on its axle while watching the center of the tread. It should spin smoothly with no up/down or in/out motion. The tire should be perfectly round and straight.
Mount the wheel on the bike and spin it again to check for concentricity and adjust pressure to desired psi.
 
MFTanK,
The posting from Avatar is pretty much spot on. I will add that not all tires are created equal. I notice my Chao Yang tires that shipped with my eBike required more "fiddling" with to get them to be well centered on the rim before applying pressure than my Annova Hybrid tires required.

The Annova tires were slightly tougher to slide onto the rim, but seemed to center themselves with greater ease. They are also 30 PSI tires, which reduced rolling resistance. They had a more "street friendly tread pattern" which reduced the roaring noise the Chao Yang tires made.

The Innova tires were more pricy, at $70 a tire, but well worth it. They also had a carcass that was about 3 times thicker than the factory tires, which seemed to reduce the frequency and severity of punctures. I always use the sealant "flat out" in my tires, as it makes flats less of a problem.

Might I suggest you give the brand/size/model of your tires to give everyone a frame of reference?
 
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