Will NX300H Spacesaver spare fit an NX350H ?

[Jumper68Y]

Hey all, 

Being a week in with my NX350H I am very conscious I have no spare wheel or mechanism to jack up the car. Just a tub of goo and a pump.

I have run flats on the back still but the front tyres have been replaced by previous owner for non run flats. 

I am old school so have been looking at options. 

My alloys are 20" but I have found NX300H 18" space saver spares and also an aftermarket kit with an 18" space saver. 

PCD seems to be the same for the NX300H and NX350H. 

So the question is has anyone else done this? or something alternative? 

18" should be fine in place of an 20" alloy should it not? just for a short period of time should I ever need it? 

Thanks

[rayaans]

Well I think before you do anything at all you need to decide whether you're keeping all 4 tyres run flat or all 4 tyres non run flat

That'll probably make your decision a bit easier 

[NemesisUK]

How many flats/punctures have you experienced in the past?

Are you a member or a breakdown service?

Personally I wouldn't mix run-flats and 'normal' tyres...

[old man 2]

 First, this;

_____________

There are no laws against mixing run flat tyres with normal tyres, but it is not recommended to do so¹²³. Mixing them can limit the control a driver has over their vehicle, as each class of tyre has different handling characteristics¹. Mixing run-flat tyres with normal tyres is not recommended, as it would compromise the control and performance of the vehicle². Standard tyres should not be used on a car manufactured to use run-flat tyres, as their suspension is designed to deal with the increased weight³. Self-supporting run-flat tyres must never be mixed with standard tyres on any vehicle⁴.

______________________________________________________________________________________________________________________

Second;

Where are you going to keep a a spare wheel ? There is no room under the boot floor.

[rado16v]

I looked at this briefly

The specs online say the NX350h uses M14 lug bolts and the NX300h (and UX and RX) use M12 lug nuts so you would think not. However, I looked up Rav4 which is essentially the same as NX350h and that also uses M12 lug nuts so going by that logic I would think NX300h wheels will fit. 

You can see from the attached specs taken from http://wheel-size.com.

 

[rado16v]

Hmm, my logic is flawed. The fact the Rav4 uses M12 lug nuts and 350h uses M14 lug bolts means the hubs are different. But would the wheel holes have enough space for M14 lugs? It's only 2mm.