Hi guys,

I just bought a set of Anthracite Axis Hiro 18x8.5 with 35 offset for my 07 tC. I'm not real good when it comes to choosing the right tire size, width etc. Can someone tell me whats the right (best) tire (size, width 225/40/18?) for this set of Hiro on the 07 tC with and without TRD drop? Thanks

 

225/40/18 is the safest if youre going to lower your car. maybe you can fit 235/35/18 or 235/40/18, but depends on the drop. better be safe than sorry.

 

yea... youre in major risk of rubbing but I would rather go w/ 235s the 235/35 sounds good

8.5 is pretty dang wide for our cars, and with the 35+ offset, I'd be worried about the rear rubbing, not sure about the front

 

Thanks for quick replies. But I still dont get it hehe. So which one is safer: 225/40 or 235/35? I really don't wanna run into risk of rubbing. Thanks

 

225 is safest

 

Thanks to both Ender and HKSpeed.

HKSpeed,
From another thread, it seems to me that you have some experience with choosing the wheel lock kit for your tC. What wheel lock kit can you recommend for my set up (Mcgard or Gorrila)? Thanks

 

Gorilla. i bought mine from SummitRacing.com because they carry Gorilla's entire line of 1658798765464 lug nuts.

 

I asked the mechanic guy at Discount Tites for installation of the new rims including swapping the tire pressure sensors from the stock wheels to the 18' wheels. He said he would do everything for $100. Is that reasonable? He also told me that since my tC is new and only has less than 1500 miles on it, it doesn't need alignment when putting on the new rims. What do you guys think about it? Is alignment really not necessary since my car is new? Thanks

 

dude, not to bash, but pick up a friggin book here, this is really, really, REALLY sad.

Please take this as constructive criticism here, because at least the shop isn't taking advantage of you, where they OBVIOUSLY could...

first off, the "tire pressure sensor" isn't a "tire pressure sensor" it's more of a "one-or-more-of-your-wheels-aren't-like-the-others" light - it uses the brake system to detect how the wheels are moving during braking in relation to each other, so the tires have nothing to do with it. Some cars have tire pressure sensors on the base of the valve stem for active tire pressure monitoring (Pontiac Grand Prix has it stock for instance) but the TC is not like that.

nextly, an alignment after installing wheels is unnecessary, not because the car's new, but because by changing wheels and tires, you are NOT changing the alignment, the alignment is with the suspension, not the wheels. You adjust your suspension to change how the wheels are aligned which obviously affects the tires as well in how they contact the road.

If you REALLY don't want to touch the car, and $100 is worth it to you to have the wheels swapped out, be my guest. For $100 you could go to your local autoparts store and buy a 21mm 6-point deep socket, a torque wrench, and still have $75 to yourself, take the jack out of the back of the car and put it under the car for each corner (the Scion manual tells you where the jack points are, and there are arrows on the sideskirts were to put the jack as well) and just change them yourself, I GUARANTEE it won't take you more than an hour, even if you're getting drunk in the process.

What happens if you get a flat going down the highway? Calling a tow truck to have them swap out your wheel for the spare? Calling Triple-A? Take the wheels and tires to a shop and have them install the tires onto the wheels, take the wheels home and put them on the car, then stand back and look at how good they look on the car with the work YOU did.

BTW, to answer your question, 225/35/18. 235/35/18 will rub, bad. 225/35/18 will rub too (even on stock suspension) because the wheels are 8.5" and +35mm (which is a total of 51MM, or literally 2 inches farther out than stock)

Best case scenario, return the wheels for something that will fit the car (more like 18x8.5 +45mm/48mm). Worst case scenario, put the tires on the car and pray the rubbing doesn't split the tire and cause an accident. In any case, Goodluck.

 

Thanks Otocan for such a thorough reply :D

I was told by other SL members that 07 tC does come with the actual pressure sensor built in the valve stem. That's why I want them sensors to be moved to the new rims.

The reason why I would have the shop do it is because I dont know how to mount the tires on the wheels If the whole process only involves swapping the wheels with tires already mounted on them, then I'm sure I can do that hehe

I dont wanna return the wheels cuz I got them for such low price. I also just bought a set of Nitto Neo Gens 225/40/18 to go with my 18". Hopefully there wont be any rubbing issue (Keeping my fingers crossed) :D

 

good choice .. 225/40/18 is the best and safext way to go.

 

you may need some negative camber in the back I think? like oto and I said... b/c the +35mm offset...

 

Thanks for all the replies.

I'm waiting for the lug nuts to arrive and I'll probably have the new rims installed this weekend. Once everything is done, I'll post pix of my tC with the new rims :D