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Mini Spare For Model 3, Hyundai Genesis 18" works
- Thread starter gene
- Start date
Daniel in SD
(supervised)
Daniel in SD
(supervised)
I got a Hyundai Genesis spare but the lugs holes are slightly less than 14mm. I reamed it out to 5/16 and now it fits. Also I made a jack adapter for the VW/Audi jack by cutting down a streetrays aluminum jack pad.
Jaywlker
Former Vendor
I’m originally from Navajo-Hopi land. Tuba City High School graduate (1988), and Rocky Ridge boarding school (elementary). Thanks for the info on the spare! I bought a mini Beemer replacement that works well, but cost double what you paid. Great find! Where can you charge up besides Holbrook? The distances on the Rez are so great. I’d like to take a Monument Valley trip with my kids over Christmas break.
For charging you have Superchargers in Flagstaff, Holbrook, and Blanding. Destination charging in Tuba City. Gouldings, Monument Valley, and Tuba City have RV spaces with Nema 14-50. Fabulous La Posada Inn in Winslow has 80 amp Tesla chargers as well. In Bluff Ut, the wonderful Recapture Lodge of "The Monkey Wrench Gang" fame has 120 overnight and also in Bluff, the Twin Rocks Trading Post has two J1772 free chargers. With a long range Model 3, and even my previous S85, Navajo lands are pretty easy. When I visit friends at Hopi First Mesa, I always end up giving the folks rides in my car. Rumor has it Kayenta will have a Supercharger coming, it will be a perfect location. If you do not have the Plugshare app on your phone, I would highly recommend it.
Jaywlker
Former Vendor
Gene, Thanks for the great information. I am new to TMC so I hope I am doing this correctly. I am looking at getting a Hyundai Genesis 18". However there seems to be a number of different options (e.g., 10-16, 10-18, etc. HYUNDAI GENESIS SEDAN OEM 18" 135/80/18 DONUT SPARE TIRE). Which one did you purchase and did you have an issue with the 10mm brake rotor bolt?
Thanks in advance for your help
John
Hi John,
The specs you mention 10-16 and 10-18 I have no knowledge of. I simply bought on ebay: HYUNDAI GENESIS SEDAN OEM 18" 135/80/18 DONUT SPARE. Maybe someone else can comment.
In regard to the 10mm bolt securing the rotor to the hub, I simply carry a 10mm wrench to remove the bolt should I need to mount the spare. I have been a pro mechanic over 40 years. That 10mm bolt is not necessary, it is simply there for manufacture and service convenience so that if the wheels and calipers are removed, the rotor will not slip off. Once you bolt down a wheel to the hub in which the rotor is sandwiched between hub and wheel, that rotor ain't goin' nowhere! Most cars do not even have a rotor bolt nor screw.
The specs you mention 10-16 and 10-18 I have no knowledge of. I simply bought on ebay: HYUNDAI GENESIS SEDAN OEM 18" 135/80/18 DONUT SPARE. Maybe someone else can comment.
In regard to the 10mm bolt securing the rotor to the hub, I simply carry a 10mm wrench to remove the bolt should I need to mount the spare. I have been a pro mechanic over 40 years. That 10mm bolt is not necessary, it is simply there for manufacture and service convenience so that if the wheels and calipers are removed, the rotor will not slip off. Once you bolt down a wheel to the hub in which the rotor is sandwiched between hub and wheel, that rotor ain't goin' nowhere! Most cars do not even have a rotor bolt nor screw.
Gene, Sorry for another question. I have seeing two different spare tires out on ebay: 135/80 R18 and 135/70 R18. Is one of these a better option or does it not make that big of a difference?
I only have my phone with me so its hard to look up. You need to get the specs for both tires, essentially the diameter. You can go to tirerack.com. Get the tire that is closest diameter to the stock tires on the Model 3. Too much differential between tire diameters may set off alarm bells on the Model 3. What's more, on any car, if you use different diameters on any drive axle you, at the least overwork the differential or, trick the car into thinking one wheel is spinning too fast and set into action traction control.
In my case, I have a RWD Model 3. On any RWD car or truck, if I was to have a rear flat, which is the drive axle, I would take a good tire off the front, move it to the rear, then put the spare up front where there is only a passive axle with, obviously, no differential nor traction control.
In my case, I have a RWD Model 3. On any RWD car or truck, if I was to have a rear flat, which is the drive axle, I would take a good tire off the front, move it to the rear, then put the spare up front where there is only a passive axle with, obviously, no differential nor traction control.
Diameter of 18" OEM tire = 235*0.45*2/25.4+18 = 26.33"
Diameter of 70 series spare = 135*0.7*2/25.4+18 = 25.44"
Diameter of 80 series spare = 135*0.8*2/25.4+18 = 26.50"
So, I would go with the 135/80-18 tire.
Diameter of 70 series spare = 135*0.7*2/25.4+18 = 25.44"
Diameter of 80 series spare = 135*0.8*2/25.4+18 = 26.50"
So, I would go with the 135/80-18 tire.
Moose408
Member
I had a blowout on my Suburban this past weekend and called AAA. Their first question was “do you have a spare” I thought it was a weird question, but perhaps that is the way it is nowadays.It's not that Tesla feels it is unnecessary, it is just general trend across the whole industry. In the ever more increasing push for more fuel economy, carrying dead weight of spare and jack that may never be used was easy place to cut out weight. Most times the pump and tire sealant are just as adequate in a pinch without the weight penalty. Last time I had a vehicle with an actual spare tire was 2000 when I had a pickup truck. Every car since then just had pump and tire sealant and have never needed to use. I'm sure I just jinxed myself.
Thomas Edison
Active Member
photog72
Member
Reviving this thread 6 months later, because I just finished this. Bought an 18" spare from a Hyundai Genesis on eBay. About $90. It was in great shape. Didn't come w/ the tire and valve stem. Bought the tire from tirerack.com. Got a valve stem from Autozone. Took it to a place in the barrio who mounted it for $7. And, he damaged the wheel. I don't think I saw anything mentioned, but the Hyundai spare has a hub size of 67.1mm. The Tesla is 64.1. So, I found some aluminum hub centric rings on eBay (67.1 to 64.1) and they fit perfect. Mounted the spare tire this evening and took it for a spin, hitting 50mph a few times to see if I needed to get it balanced. The car rides smooth at that speed, even w/ the damaged spare wheel. As for mounting. I bought a couple of ratchet tie downs from Harbor Freight Tools. Took off the plastic at the top of the trunk edge and mounted the wheel there. It doesn't move at all!
I don't think I saw anything mentioned, but the Hyundai spare has a hub size of 67.1mm. The Tesla is 64.1. So, I found some aluminum hub centric rings on eBay (67.1 to 64.1) and they fit perfect. Mounted the spare tire this evening and took it for a spin, hitting 50mph a few times to see if I needed to get it balanced. The car rides smooth at that speed, even w/ the damaged spare wheel. As for mounting. I bought a couple of ratchet tie downs from Harbor Freight Tools. Took off the plastic at the top of the trunk edge and mounted the wheel there. It doesn't move at all!Attachments
Watts_Up
Well-Known Member
daniloreyes
Member
True, the 10mm bolt is not needed. on my aftermarket wheels, I ended up using a lower profile bolt and it worked too.
