Tire fitment - EZGO txt dcs

blarose

I recently purchased new/old 96 36 volt ezgo and it came with 4 different tires on it. It looks stock with no spindle or block lifts although it has 22 x 10 x 10 tires on the rear and only 18 stocks on the front. My best guess from looking through other threads is that he upgraded to the Monroe shocks model #31069 with allows for 2 more inches of clearance. I was surprised to see that it increased the mph 4 mph to 17 mph as it goes back down to 13/14 when put stock wheels on the rear.

Anyways, my issue is that the driver side rear is rubbing on the rear downward frame that holds up the leaf springs. The other side has same size tire and has about 2 inches of clearance. I'm guessing there is nothing I can do about that and probably need to get a 20 inch tire replacement unless someone knows some tricks.

Also since this is a 20 old cart, I was contemplating leaving the 22 on the other side although i know the cart would tend to veer towards the smaller side. Is this a horrible idea and should I just get another 20 for the other side?


r/
Brad

BGW

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blarose

Have 2 20inch low profile coming today for the fronts that claim they will fit stock EZGO. Saw quite of bit of contradiction online in regards to what fits stock and what doesn't. Originally wanted Carlisle 20 x 10 x 10 but seems that it wouldn't fit from reading other threads so stuck with some lower profile street tires that wouldn't be questionable.

bronsonj

I bet you have a wheel spacer on the passenger side to pull it away from the frame.

That, or the driver side has a different offset on the rim. If the rims are the same or if both rims have 0 offset then it's likely a wheel spacer on the one that does not rub.

Lastly, you can get tires that are wider but still have the same rim and outside diameter size. They'll look like they bulge out and while I do not think that's likely to be your issue it is another possibility.

as for mismatched tire size, I'd keep the same size on each side of the rear. You can buy a pair of wheel spacers for about what you'd spend on a tire. The wheel spacer will mean you don't have to worry about your cart always leaning to one side whereas different tire sizes would cause that.

Last thing, when you have the tire off the cart, make sure you prime and paint the rubbed bare frame. Lots of acid fumes under the seat from batteries and you don't want an easy place for rust to take hold.

Good luck!

scottyb

I think running 2 different size rear tires will damage the rear end or axle bearings
20s fit.

JohnnieB

Measure the actual tire height with level and yardstick.
The size embossed on sidewall may vary by an inch or more in either direction.
Even the same make/model of tire with different date of manufacture can vary.

The speed difference between a stock height (18") and a 22" tall tire is 22%, but the increase in speed is at the expense of an 18% loss in torque. So a change from 13.9 to 17 MPH is correct mathematically and a DCS has a lot of torque, so it appears to be reaching the theoretical increase despite the torque loss.

A 20" tall tire is about all a non-lifted cart can handle and both rear tires ought to be the same height, or you may be replacing some 20 year old gears in the differential.

Installing 20" tires will give you a top speed of about 15.5 MPH, but when the stock DCS controller dies, replace it with an Alltrax XCT controller and you up the speed into the low to mid 20's, or more if you up the battery pack voltage.

blarose

Thanks for the input.
No spacers on either side and both rims have same offset. Both 22s will fit on the rear passenger side and both have a slight rub on the rear driver side. Do shocks lower over time? Maybe just the driver side shock is lower. I can go measure that today.


As for the rust prevention, what exactly do you mean by the rubbed bare frame? I definitely had plans on removing rust in the near future with some POR.

r
Brad

blarose

ok thanks! I'll keep them the same. Looks like the consensus is just to go ahead with 2 20s for the rear since that's what is coming in for the front anyways.

blarose

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Yea i've noticed what you are saying in regards to the varying range in tires sizes even from the exact same tires. Makes it really hard to figure out which 20s will fit front and which will not.

I do plan on upgrading the controller and other necessary items when dies or maybe sooner if decide to lift it. WIll be plugging a way at those archived threads when the time comes.

Thanks@

gornoman

Another item to check under the cart is whether the rear axles/differential are centered L-R on the leaf springs. It would be easy to miss, and would cause one side tire to rub and the opposite side to clear. The U-bolts that hold the axle to the springs can loosen over time....

blarose

Not exactly sure if this is what you are referring to but just noticed a difference in the rear driver and passenger leaf hanging bar.
I can't upload pics yet so I will try to explain as best as I can.

The passenger side which doesn't rub has almost perfect 90 degree angle where leaf meets hanging bracket and also at top where hanging bracket meets the frame.

Driver side which rubs has a slight 10 degree difference than the passenger side.
From axle to bottom of bracket where meets leaf on both sides is the same 12 inches.
From axle to top of bracket where meets frame on passenger side is the same 12 inches but is only 11 inches on driver side.

r.
Brad