Spare tire and rim of some sort I had my first flat..

Thanks for all those details HWITTEN .. I just ordered mine. Peace of mind.

 

Exactly
Off into the boonies for a bit this weekend, unless it pours. I call it necessary travel for the mind.

 

On my way back from rural work deployment today the TPMS monitor did its job.



I reluctantly pulled over as I was having a hard time believing the TPMS, as I had not experienced any drivability issue as of yet.
Quick look and I could immediately tell it was not lying to me. I could clearly see the offending nail on the border of the tread and sidewall of my Blizzak snow tire.



I am glad I packed the compact spare tire as the overnight temps were hitting -6C and I doubt the fix a flat kit would have flowed appropriately. Not to mention that I was about 150km away from anything that one would consider civilization. It probably would be at least 2 hours before Hyundai road side service could get to me assuming they left right away. Realistically it probable would have killed most of my work day.

Had the tire changed in under 15 minutes and drove the 150km back to my urban office. Glad I had the foresight to pack some gloves and a mat to kneel on in the emergency kit as I was wearing my office clothes in the winter muck and I needed to get back to work as soon as possible. The flat was on the rear driver's tire and the compact spare fits perfectly, no rubbing on the e brake hardware. I will see if I can plug the tire at home tonight, its kind of iffy as it on the sidewall/tread shoulder might have to dismount the tire from the wheel and patch it from the inside.

 

Honestly, I probably would have been too lazy to bother and just drove a little more cautiously with the tire on the front.

The jack was just a regular 2 ton scissor jack I picked up from Princess Auto(kinda like a Canadian version of Harbor Freight for the American folks). I think it was around $15 on sale. A guy could also go to a nearby scrap yard and probably get one and a tire iron for next to nothing.

 

Argh as suspected the tire won't hold a plug or patch, just ordered a $212 replacement
As I have a few long highway work trips this weekend I swapped the spare donut out with in one of my original all season tire/wheels. Looks retarded with 2 different wheels but drives much better.

 

The cigarette port is on the drivers side in the tray below the center console. (note in the picture I have a volt meter with two usb ports plugged in to the cigarette port)

 

Is there really a significant difference between the quality of the pirelli compact spare tire from modern spare and the quality of the junkyard hyundai Azera compact spare tire that Apu uses? The pirelli claims an M speed rating (81mph continuous), but what is the speed rating on the much less expensive Azera spare? From what I understand because most compact spares are made smaller and lighter they have a softer tread compound to generate more traction from a smaller contact patch. So speed and range are typically limited to prevent overheating and blowing the tire. According to modern spare the pirelli can drive for "several hundred miles or more" which sounds great to me! But if the Azera cs also has an M speed rating what's the real difference (other than more conservative product liability policies)?

 

The Azera spare like most compact spare the suggested max speed is 80km/hr or around 50mph. They are meant to get you home or the garage in a pinch.

 

I bought a new 4" x 17" compact wheel from a Hyundai dealership that is for a 2018 to 2020 Tucson. It fits perfectly on my Kona Ev and clears the rear brake caliper just fine. I'm sure the wheel is identical to the Azera wheel that apu has. The part number for the wheel is 52910-C1930.

 

I took a close look at images of that pirelli compact spare tire and unlike most other compact spare tires it does not say maximum speed 50mph / 80kph on the sidewall. So perhaps Modern Spare is onto something.

The pirelli comes OEM on a Jaguar XF compact spare, which looks a lot like the modern spare. Unfortunately the Jag's center bore is smaller. And I have to question the logic of buying used Jaguar parts to make my new Hyundai more reliable

 

I don't believe the modern spare is any better or any worse than the other options as far as speed goes. The maximum tire speed is based on it's rating. The Pirelli 135 80 18 has a rating of 104M with a maximum speed of 81 mph. The Kuhmo 135 90 17 i have on order is also rated 104M with the same maximum speed. The reason most compact spares come with a sticker on the wheel that says the speed should be restricted to 50 mph/80 kph is due to the fact that potential damage can occur to your drivetrain if you drive at high speeds. Owner manuals also indicate the maximum speed when using the compact spare is 50 mph.

Generally most cars that come with compact spares will have a spare that is smaller than the OEM tire. A case in point is the gas Kona that has 215 55 17 OEM tires but a compact spare that is 125 80 16. Some car companies suggest the compact spare should be used on the rear of a FWD car while others make no comment. They do cover themselves off by saying to restrict your speed and distance driven.

If you are outfitting a FWD car with a compact spare and you plan to use it on the front drive wheels then you should pick a tire size that has a very close revolutions per mile as your stock tires AND restrict your speed in order to limit any potential drivetrain damage as there will be a rotational difference between the two sides even if it is small.

If you use a compact spare on the rear of a FWD vehicle then you are fine up to the the maximum speed rating of the tire. However, in all likelihood you will also want to restrict your speed as the car will not handle or brake the same with a skinny compact spare on one wheel.

 

I picked up a 17" genesis compact spare from a scrapyard using car-part.com for $75 including shipping to my door and taxes. A very easy solution! The spare fits in the trunk and on the car. Same diameter as the OEM kona tires. For a trestle under the spare in the trunk I used the jack kit from a 2006-2010 honda civic that I had lying around. The honda kit fits perfectly and the honda jack lifts the Kona easily. By offsetting the spare to one side of the trunk well there was room for the Kona compressor and tire glue, jumper cables, gloves, tarp, block of wood to fit under the jack in case I get a flat on a gravel road, and lug wrench with pipe extension. I prefer a longer breaker bar and socket instead of the shorty honda lug wrench so that my wife can get the nuts off too. Plus the honda wrench was 19mm but the kona lugs are 21mm. The whole kits fits tight and rattle free.

FYI - While searching for a spare I noticed that the genesis also came with an aluminum 18x4 compact spare that looks identical to the one modern spare uses.

 

Carrying around the weight of a spare tire, jack, and lug wrench isn't green and externally environmentally irresponsible.


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