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Front Suspension Knuckle Too Close toTire

RayK

Active Member
Apr 5, 2016
1,848
1,802
San Jose, CA
What kind of car/tire/rims are we talking about here? While it's probably okay for most everyday usage, the only problem that I could see is that it's on an AWD car and you'd want to put tire chains on the front.
 

kbecks13

Active Member
Dec 27, 2017
1,914
2,263
SoCal
I have the stock 18" Aero Wheels and it's the AWD car.

It's fine, i've run some MUCH larger tires (for short periods of time) on track and they held up fine. They were like 20" wheels with 275/35 tires which means ~4% larger diameter than stock. Had to do a tiny bit of grinding on the knuckle to make them clear though (on raised material, not structural members)

Unplugged Performance on Instagram: “Track ready for Sunday’s sold out @teslacorsa 3! We will be testing quite a few new prototype parts on this customer car! #tesla…”
 

tccartier

Supporting Member
Oct 27, 2015
901
940
AZ.
Anyone else feel that the front suspension knuckles are too close to the top of the tires? Seems like there is only a gap of about an inch.

It's the same way on Model S. A Miss is as good as a mile one inch is all you need. they're never going to hit or come in contact unless there's some type of a failure in which case you were not going to do good anyway so it doesn't matter.

The only difficulty would be is if you wanted to put oversized wheels / tires on the vehicle otherwise it's a non-issue
 

KG2V

Member
Mar 9, 2019
195
152
Bayside, NY
It's the same way on Model S. A Miss is as good as a mile one inch is all you need. they're never going to hit or come in contact unless there's some type of a failure in which case you were not going to do good anyway so it doesn't matter.

The only difficulty would be is if you wanted to put oversized wheels / tires on the vehicle otherwise it's a non-issue

Yep, I was going to say "There is an expression in machine shops, 'A miss is as good as a mile'" - who needs more than an inch? Plenty of room for chains. Heck, if you do all the permutaions etc on how things flex, of you miss by .001, it is good enough
 

Resist

Member
Mar 24, 2019
413
212
San Luis Obispo
Thanks for all the responses. I figured it was okay, just not used to seeing metal so close to a tire. Am I correct and thinking that the knuckle also moves up and down, in unison with the tire?
 

Daniel in SD

Well-Known Member
Jan 25, 2018
6,281
8,935
San Diego
Thanks for all the responses. I figured it was okay, just not used to seeing metal so close to a tire. Am I correct and thinking that the knuckle also moves up and down, in unison with the tire?
Yes, it is rigidly connected to the hub.
s-l1600.jpg
 
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tccartier

Supporting Member
Oct 27, 2015
901
940
AZ.
Thanks for all the responses. I figured it was okay, just not used to seeing metal so close to a tire. Am I correct and thinking that the knuckle also moves up and down, in unison with the tire?

That would be correct. They will never be any closer than what you see.
 

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