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Discussion Starter #21
Thanks, Q. That's good info. Seems that Toyota may not have to do much redesign to the well to fit a full size spare. I hope they're reading this. I believe that once the word gets out they will lose sales especially on their pricey "Adventure" and upcoming "Offroad" models if they don't.
 

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The dismounted 235/55R19 tire will fit, but it's a little too tall at the front for the deck board to fit flush, rear of the deck board fits flush as it normally would, I'd expect an inflated tire to at least raise the front of the board a big higher even if the black rubber block was removed. Note the spray-on sound deadener in the well.

Unrelated question. I found this plastic part in a bag next to the spare tire. Do you know what that is for?
 

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Unrelated question. I found this plastic part in a bag next to the spare tire. Do you know what that is for?
Looks like a bracket for mounting the front licence plate...
 

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I wouldn't try to go to do SERIOUS off roading in my 2017 RAV. Nor would I try it with my 2005 GoldWing trike. I would also not go ocean fishing with a 12 foot canoe. When it rains, I put on a raincoat, not my "water repellent" jacket. Never use a crescent wrench to remove lug nuts.

Use the appropriate tool for the job at hand.
 

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I wouldn't try to go to do SERIOUS off roading in my 2017 RAV. Nor would I try it with my 2005 GoldWing trike. I would also not go ocean fishing with a 12 foot canoe. When it rains, I put on a raincoat, not my "water repellent" jacket. Never use a crescent wrench to remove lug nuts.

Use the appropriate tool for the job at hand.
I agree and said something similar earlier on this thread.

I did ponder later and sort of felt bad that not everybody can have multiple vehicles and compartmentalize their driving with different vehicles.

What happened to me is that as I aged, I kept some of my older favorite vehicles (ex: 1995 80 series Land Cruiser ). I only insure in the spring for some fun in the mountains.

When younger, I could only have 1 car. I suspect one could have a lot of fun with an AWD Rav.

Sent from my SM-G935W8 using Tapatalk
 

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I have had a full size spare hanging off the back of my Landcruiser for 10 years and never used it once, and that was doing way more hardcore off-roading than I ever will in a rav4. I definitely intend to get my rav off road, so I’ll be upgrading the tires to a more durable model. If you really want peace of mind get e rated tires, they would be very hard to puncture on a light vehicle like a rav. Could also have a fab shop like stellarbuilt make a rear off-road bumper with spare tire swing out. Worst case scenario I’ll limp out of the woods on the donut!
 

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I gave this a try today with my oem tires (235/55R19) since I haven’t got rid of them yet. I’m positive the trunk will fit a full size spare if you remove the black rubber square and styrofoam that sits under the regular spare. The black square is stuck on with a thin adhesive layer and styrofoam isn’t held down at all. I left the square in place for now and the board going over it had only a small amount of lift coming from the front where the tire was being raised by the square.

My new tires are a little fatter than the oem ones at 245/65R17 but I’m considering a full spare and wanted to give it a try with what I have. Too lazy right now to pull an entire wheel off but might give it a shot one of these upcoming weekends.
 

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I gave this a try today with my oem tires (235/55R19) since I haven’t got rid of them yet. I’m positive the trunk will fit a full size spare if you remove the black rubber square and styrofoam that sits under the regular spare. The black square is stuck on with a thin adhesive layer and styrofoam isn’t held down at all. I left the square in place for now and the board going over it had only a small amount of lift coming from the front where the tire was being raised by the square.

My new tires are a little fatter than the oem ones at 245/65R17 but I’m considering a full spare and wanted to give it a try with what I have. Too lazy right now to pull an entire wheel off but might give it a shot one of these upcoming weekends.
Great info! I am considering running a near-full-sized spare. The tires I have on order are 255/70R16s (30.1"), which sounds a bit too wide for the stock location. But, it also sounds like maybe a taller 215 would fit! I might try to measure today. If nothing else, if I can get within a few percent (29.5" is only 2% shorter), I should be able to use the spare for more-or-less normal driving, rather than having to immediately limp to the nearest repair station.

That said, I have also used exactly one spare in my life, just from running over a big nail in exactly the wrong way.
 

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Anyone know the total diameter of the spare on the Adventure? Is it different from other models, since the stock wheels are 19"? I'm thinking if I replace my stock wheels with 17" wheels and use bigger tires, the diameter would be close to the spare... So, if I get a flat in the middle of nowhere, I can still use the spare.
 

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My XLE Premium also came with the 19s and 29.2" tires, and the spare is still the 165/80R17 which is only 27.4" in diameter.

I tried to find "compact spare" sizes that were taller, but they are rare. However, 215/75R17 is a common regular tire size, is 29.6", and may actually fit under the cargo base.

In the absense of a true full-sized spare, I am genuinely considering putting slime in my tires, though. It wont stop a sidewall gash, but should allow me to keep driving with a nail in the tread if it comes down to it. I do also carry and know how to use a tire repair kit, but nobody wants to get to that point.
 

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My XLE Premium came with the 19s and 29m2" tires, and the spare is still the 165/80R17 which is only 27.4" in diameter.

I tried to find "compact spare" sizes that wede taller, but they are rare. However, 215/75R17 is a common tire size, is 29.6", and may actually fit under the wheel well.

In the absense of a true full-sized spare, I am genuinely considering putting slime in my tires, though. It wont stop a sidewall gash, but should allow me to keep driving with a nail in the tread if it comes down to it. I do also carry and know how to use a tire repair kit, but nobody wants to get to that point.


How far do you think you can drive with a 2 inch difference in one of the tires without damaging the car or crashing? If a bigger tire won't fit, I might have to mount one on the roof, but that's going to look very ugly.. I bought the flat tire repair kit on my previous vehicle... The instructions seem a bit complicated. I've only had a flat tire once, and it was in the middle of nowhere.. Thankfully, I had a spare
 

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How far do you think you can drive with a 2 inch difference in one of the tires without damaging the car or crashing? If a bigger tire won't fit, I might have to mount one on the roof, but that's going to look very ugly.. I bought the flat tire repair kit on my previous vehicle... The instructions seem a bit complicated. I've only had a flat tire once, and it was in the middle of nowhere.. Thankfully, I had a spare
The manual pretty much says you should disable any driving aids (lane assist, emergency braking, etc), or should otherwise expect them not to work correctly. Also, it says speeds should not exceed 50mph. I didnt find any places talking about actual damage to the vehicle (as opposed to sections about towing), but they really don't sound like they want you driving on the spare any longer than absolutely necessary. In theory, an extended trip on the spare could cause the differential to get hotter than normal, but I have no idea if it would cause any real permanent harm.
 

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The manual pretty much says you should disable any driving aids (lane assist, emergency braking, etc), or should otherwise expect them not to work correctly. Also, it says speeds should not exceed 50mph. I didnt find any places talking about actual damage to the vehicle (as opposed to sections about towing), but they really don't sound like they want you driving on the spare any longer than absolutely necessary. In theory, an extended trip on the spare could cause the differential to get hotter than normal, but I have no idea if it would cause any real permanent harm.

Is it really necessarily to get a full size spare after you put on new wheels/oversized tires? Since the spare is about 2" shorter than the stock tires... And the oversized tires aren't that much bigger in diameter compared to the stock ones.. The purpose of the spare is for emergency situations, right?
 

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Is it really necessarily to get a full size spare after you put on new wheels/oversized tires? Since the spare is about 2" shorter than the stock tires... And the oversized tires aren't that much bigger in diameter compared to the stock ones.. The purpose of the spare is for emergency situations, right?
That is generally my thought as well. It sounds like the original spare should suffice for emergency situatiations.

Otherwise, unless a 29.6" spare will fit in the factory location, in the form of a 215/75R17, we are stuck with either a hitch-mounted full-sized spare--a ~$1500 investment after the hitch, spare wheel and tire, and the rear suspension upgrades that would be useful to offset the rear-biased weight--or throwing a full-sized spare on the roof.

Thus, I am thinking I'll slime the tires and hope for the best.
 

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That is generally my thought as well. It sounds like the original spare should suffice for emergency situatiations.

Otherwise, unless a 29.6" spare will fit in the factory location, in the form of a 215/75R17, we are stuck with either a hitch-mounted full-sized spare--a ~$1500 investment after the hitch, spare wheel and tire, and the rear suspension upgrades that would be useful to offset the rear-biased weight--or throwing a full-sized spare on the roof.

Thus, I am thinking I'll slime the tires and hope for the best.


Do you think 255/65/17 with mud guards is a bit of risk for rubbing issues? I'm about to purchase wheels and tires from tirerack.com...
 

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Honestly it might be close, depending on the tire's cross section profile. I think a more squared profile like BFG KO2s would be closer to rubbing than mine.

I am getting ready to order some, but wouldnt be able to put them on until next weekend as I am going on vacation for the week.
 

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Honestly it might be close, depending on the tire's cross section profile. I think a more squared profile like BFG KO2s would be closer to rubbing than mine.

I am getting ready to order some, but wouldnt be able to put them on until next weekend as I am going on vacation for the week.


I found a shop that wants about $1700 for both wheels and the KO tires installed.. I'm gonna go with the 245/65/17 just to be safe, because they have to special order it.. I'll probably use it for a year or so, and then do a 2" lift, and try to see if 31" tires would fit.
 

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I found a shop that wants about $1700 for both wheels and the KO tires installed.. I'm gonna go with the 245/65/17 just to be safe, because they have to special order it.. I'll probably use it for a year or so, and then do a 2" lift, and try to see if 31" tires would fit.
Good luck! I think 31s (265/70R16 or 265/65R17, 30.6") would be pretty sweet on these things, and honestly really shouldn't be all that difficult. You'd actually gain a full inch of ground clearance, too. Coupled with a 2" lift, you'd be looking at ~11.5" of center ground clearance, which is actually a couple inches more than a stock 4Runner--in a vehicle that still gets 30mpg!
 

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Anyone have any updates on fitting a full-sized or near-full-sized spare in the factory location? I just test-fit my 255/70R16s (30.1"), and the cargo floor / cover was only about 1" too high. Given 215s should be about 40mm (1.6") narrower, they should fit!

I have also been pondering creating a fold-down hitch carrier, but Id like to avoid it for several reasons (blocks rear camera, heavily rear-biased weight, more difficult to access cargo area, and generally just makes the vehicle longer to park and such).
 
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