Can you

scousefly · 11-30-2021, 09:54 AM

use a 120 PCD wheel on a car with 112 PCD say using spigot rings. I know on a different car years ago aftermarket wheels sometimes had a plastic spigot ring so is there a metal version/reducer?

Watsey · 11-30-2021, 10:20 AM

A spigot ring won't make any difference to the PCD. The bolt holes will still be fundamentally incompatible.

I've seen wheel spacers on the market which also included bolt>stud conversion, and have also seen photos where they have failed (bolts have sheared off). They are a big no IMO.

Lorcan · 11-30-2021, 10:36 AM

The centre bore is not really the issue (as that's easily fixed with a spigot ring); the issue is the bolts don't line up with the holes as they are on different base circles. You can buy PCD adaptors which have two sets of holes, one at 120mm and one at 112mm, and take two sets of bolts, but they will have a minimum thickness of 16-20mm so will make the wheel stick out quite far, and it's not an ideal solution to my mind. I wouldn't use them on my own car.

scousefly · 11-30-2021, 11:16 AM

I posted it then thought about that about 10 mins afterwards..........DOH

:confus ed2

martin10chk · 11-30-2021, 01:05 PM

Search “PCD adapter” and you can find numerous options. How much do you value your life and financial security (pretty sure insurers would run a mile from these) ?

11-30-2021, 09:54 AM	#1
scousefly Private First Class 36 Rep 109 Posts Drives: BMW G30 5 Series & G01 X3 M Join Date: Apr 2019 Location: South Yorkshire iTrader: (0) Garage List 2018 BMW 520D M Sport [0.00]	Can you use a 120 PCD wheel on a car with 112 PCD say using spigot rings. I know on a different car years ago aftermarket wheels sometimes had a plastic spigot ring so is there a metal version/reducer?
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11-30-2021, 10:20 AM	#2
Watsey Major General 6441 Rep 8,509 Posts Drives: F31 330D sDrive M Sport Join Date: Jun 2015 Location: On sabbatical. iTrader: (1)	A spigot ring won't make any difference to the PCD. The bolt holes will still be fundamentally incompatible. I've seen wheel spacers on the market which also included bolt>stud conversion, and have also seen photos where they have failed (bolts have sheared off). They are a big no IMO. __________________ Current : F31 330sD, remapped, Ohlins Road & Track, Millway camber plates, Quaife LSD, Stoptech brakes + Pagid RSL1 pads all round, Weichers front strut brace, Eibach front & rear anti-roll bars, Michelin MP4S.
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11-30-2021, 10:36 AM	#3
Lorcan The artist formerly known as AC Schnitzer UK 3610 Rep 4,518 Posts Drives: The Yellow Peril Join Date: Apr 2013 Location: Norfolk UK iTrader: (0)	The centre bore is not really the issue (as that's easily fixed with a spigot ring); the issue is the bolts don't line up with the holes as they are on different base circles. You can buy PCD adaptors which have two sets of holes, one at 120mm and one at 112mm, and take two sets of bolts, but they will have a minimum thickness of 16-20mm so will make the wheel stick out quite far, and it's not an ideal solution to my mind. I wouldn't use them on my own car.
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11-30-2021, 11:16 AM	#4
scousefly Private First Class 36 Rep 109 Posts Drives: BMW G30 5 Series & G01 X3 M Join Date: Apr 2019 Location: South Yorkshire iTrader: (0) Garage List 2018 BMW 520D M Sport [0.00]	Ye I posted it then thought about that about 10 mins afterwards..........DOH:confus ed2
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11-30-2021, 01:05 PM	#5
martin10chk Second Lieutenant 159 Rep 211 Posts Drives: F31 316i, F21 M135i (gone) Join Date: Jul 2021 Location: York iTrader: (0)	Search “PCD adapter” and you can find numerous options. How much do you value your life and financial security (pretty sure insurers would run a mile from these) ?
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