Broken Project Kics R40 lug nut

[Figo]

IMO Mcgard SplineDrive is the best daily drive lug nuts.
The are reliable, and with spinning seat as @CSG David mentioned.

[CSG David]

With sufficient heat and whatever particles/moisture stuffing into the cracks of the two surfaces, the spinning seat can seize and the lug nut becomes one unit. Not exactly the most ideal situation, but it is the common thing amongst our community. Just a different scene since I've heard others having absolute success with the Mcgard and the Project Kics setups. Hard to say, but personally, I opt for the safer option.

Originally Posted by Figo

IMO Mcgard SplineDrive is the best daily drive lug nuts.
The are reliable, and with spinning seat as @CSG David mentioned.

[TylerLieberman]

Got it off pretty easily actually. I took off the other lug nuts and then wiggled the wheel around a bit and the seat actually just fell off the lug after separating into two pieces.



After that, I simply took a pair of vice grips and clamped it to the piece still stuck on the wheel stud and twisted it off.




No damage to the wheel stud whatsoever except on the very top where the piece didn't want to come off. A tap and die set solved that.

In a place where are no harsh elements/weather(Southern California), and you're not taking the wheels off frequently, these would probably do very well. However here in Oklahoma where it changes from winter to summer nearly every day, and I take the wheels on and off a bunch at drift events and such, these simply aren't durable enough to last. Furthermore, thanks to the weather, every single one had seized, so the bottom no longer spins on any lug nuts.

Shitty that these are $300 lugs and they only lasted about a year but at least getting everything done and taken care of was painless.

[2much]

are the stock nuts problematic under tracking conditions?

is the only reason to not use stock nuts for [minimal] weight savings and aesthetics?

I just bought new wheels and changing the lug nuts did not even occur to me.

[mav1178]

Originally Posted by TylerLieberman

In a place where are no harsh elements/weather(Southern California), and you're not taking the wheels off frequently, these would probably do very well.

I estimate that between track events and me being vain, I swap wheels around once every 14 days.

All of my R40 lug issues were created by me, not by lug design.

YMMV.

-alex

[TylerLieberman]

Originally Posted by mav1178

I estimate that between track events and me being vain, I swap wheels around once every 14 days.

All of my R40 lug issues were created by me, not by lug design.

YMMV.

-alex

Same here, though I also swap multiple times a day when at the track swapping between spare tires and stuff. Mix this with just awful weather and I believe I have the reasoning for my particular case.

They're awesome lugs; I iust wish that for the money they cost, they wouldn't be prone to failure like that.

I switched back to steel muteki nuts which I've used over the years and have never run into a single issue. I'll just stick with these from now on I suppose.