PCD :: Expert advise please..

DRC · 5th September 2005, 17:46

I had the first flat tyre this sunday, and went to the tyre shop for a fix.
There, the tyre guy tried to sell me a set of alloy wheels..
I asked "My petra uses 14'' 98PCD wheels, do you have 98 PCD alloys?"

He told me "PCD is all non-sense, All wheels are same as long as lugs match"

He pulled out a wheel which had a print 100 and I assumed its 100 PCD, he fitted that on the hub with 4 bolts. The wheel had 8 holes on it,

Then he showed me that it also fits on a Ikon, which was there around with a flat tyre and wheel removed, which is supposed to be 100PCD.

Now I am looking like a fool

Any expert views on this...

Rtech · 5th September 2005, 18:16

You are right, the tyre guy is wrong.

Yes, the wheel may fit, but it's essential to have the correct PCD.

DRC · 5th September 2005, 18:21

Rtech,,
Could you please elaborate for me....What would happen if I fit mismatching the PCD... what is gonna break.. whell or Car??

hrag · 5th September 2005, 19:59

This might help
http://www.team-bhp.com/forum/showthread.php?t=6908

viper · 5th September 2005, 20:15

Hey Guys,

Both of you are right. As you mentioned the wheel had 8 holes which means they are dual pcd rims. They are made in such a manner that they can fit different cars with different types of PCD's.

If the holes match and the tyres rotate without a problem whilst driving you have no reason to worry.

Viper

S600BENZ · 5th September 2005, 22:51

P.C.D stands for Pitch Circumference Diameter. That means if you draw an imaginary circle which passes through the centre of the 4 holes on your wheel then the diameter of that circle in mm is your P.C.D. This is unique to each wheel and hub. That means that you have to have the exact same P.C.D on the wheel and the hub to match. Dual P.C.D means that the same wheel with 8 holes will fit 2 diff hubs having different P.C.Ds thats why the wheel fit the Petra which has 98 and the Ikon which has 108 P.C.D. Now the question is why did the 100/108 dual P.C.D rim fit the 98 P.C.D Petra. Since there is a very minimal 2 mm diff in the 98 and 100 P.C.D the guy basically forced it on the Petra since the larger 100 P.C.D wheel will go on the 98 P.C.D Petra. Now this is highly not recommended as the wheel will not be an exact fit on the hub. Some tyre guys also do the vice versa i.e fit a 98 P.C.D rim on a 100 P.C.D hub by shaving the insides of the bolt holes on the wheel and forcing the rim on the hub. Thi is also a very stupid thing to do. All this happens in India only as the dealers are so happy that a customer has come to them or liked a design they will sell sell them anything as long as it fits.
In singapore where I usually buy Rims for Mercedes they are so particular that they will not sell you rims with the wrong offset. That is being really professional.
Cheers.

DRC · 6th September 2005, 11:27

Now, That I am planning to go for the alloys, (thou not immediately) and doing my home work..
How can I source 98PCD wheels...
I visited aura website and find the 98PCD wheels, but the dealers say they never make them..I am not sure though, but all of whom I spoke to had the same say!!

PJSPEED · 6th September 2005, 12:00

Hi,

If you are intrested in BBS let me know..........

We have RW 7 X 15" with PCD 98 Center bore of 58.1

Recommended tyre size 195/50R 15,205/50R 15 or 215/50 R 15

PJ

PJSPEED · 6th September 2005, 12:30

Quote:

Originally Posted by PJSPEED

Hi,

Recommended tyre size 195/50R 15,205/50R 15 or 215/50 R 15

PJ

The size above is for Palio Sorry about that......

Edmund · 21st September 2005, 22:27

Well a friend of mine is coming down from the states and i've asked him to get me a set of spacers for my rear wheels as the track width is less than that of the front wheels.........

Now the question i have is the PCD of my cars wheels as measured by me is 120.00mm can anyone confirm this for me???

I didint wanna start a new thread for this question, So if anyone can confirm that for me it'll be great........

PJSPEED · 21st September 2005, 23:45

Quote:

Originally Posted by Edmund

Well a friend of mine is coming down from the states and i've asked him to get me a set of spacers for my rear wheels as the track width is less than that of the front wheels.........

Now the question i have is the PCD of my cars wheels as measured by me is 120.00mm can anyone confirm this for me???

I didint wanna start a new thread for this question, So if anyone can confirm that for me it'll be great........

Can you let me know for which car????
120 PCD looks like BMW ....

Edmund · 22nd September 2005, 02:12

Quote:

Originally Posted by PJSPEED

Can you let me know for which car????
120 PCD looks like BMW ....

No,no ......... not a BMW, PJSPEED.......a 1985 Suzuki 800......

Edmund · 22nd September 2005, 17:44

Somebody........help!!!!!

5th September 2005, 17:46	#1
DRC BHPian Join Date: Dec 2004 Location: Cockpit Posts: 907 Thanked: 67 Times View My Garage	PCD :: Expert advise please.. I had the first flat tyre this sunday, and went to the tyre shop for a fix. There, the tyre guy tried to sell me a set of alloy wheels.. I asked "My petra uses 14'' 98PCD wheels, do you have 98 PCD alloys?" He told me "PCD is all non-sense, All wheels are same as long as lugs match" He pulled out a wheel which had a print 100 and I assumed its 100 PCD, he fitted that on the hub with 4 bolts. The wheel had 8 holes on it, Then he showed me that it also fits on a Ikon, which was there around with a flat tyre and wheel removed, which is supposed to be 100PCD. Now I am looking like a fool Any expert views on this...
	() Thanks

5th September 2005, 18:16	#2
Rtech Team-BHP Support Join Date: Apr 2004 Location: Bombay Posts: 5,765 Thanked: 371 Times View My Garage	You are right, the tyre guy is wrong. Yes, the wheel may fit, but it's essential to have the correct PCD.
	() Thanks

5th September 2005, 18:21	#3
DRC BHPian Join Date: Dec 2004 Location: Cockpit Posts: 907 Thanked: 67 Times View My Garage	Rtech,, Could you please elaborate for me....What would happen if I fit mismatching the PCD... what is gonna break.. whell or Car??
	() Thanks

5th September 2005, 19:59	#4
hrag BANNED Join Date: Nov 2004 Location: Bangalore / Madras Posts: 1,982 Thanked: 32 Times	This might help http://www.team-bhp.com/forum/showthread.php?t=6908
	() Thanks

5th September 2005, 20:15	#5
viper BANNED Join Date: Mar 2005 Location: Mumbai Posts: 1,766 Thanked: 20 Times	Hey Guys, Both of you are right. As you mentioned the wheel had 8 holes which means they are dual pcd rims. They are made in such a manner that they can fit different cars with different types of PCD's. If the holes match and the tyres rotate without a problem whilst driving you have no reason to worry. Viper
	() Thanks

5th September 2005, 22:51	#6
S600BENZ BHPian Join Date: Mar 2004 Location: Mumbai Posts: 304 Thanked: 12 Times	P.C.D stands for Pitch Circumference Diameter. That means if you draw an imaginary circle which passes through the centre of the 4 holes on your wheel then the diameter of that circle in mm is your P.C.D. This is unique to each wheel and hub. That means that you have to have the exact same P.C.D on the wheel and the hub to match. Dual P.C.D means that the same wheel with 8 holes will fit 2 diff hubs having different P.C.Ds thats why the wheel fit the Petra which has 98 and the Ikon which has 108 P.C.D. Now the question is why did the 100/108 dual P.C.D rim fit the 98 P.C.D Petra. Since there is a very minimal 2 mm diff in the 98 and 100 P.C.D the guy basically forced it on the Petra since the larger 100 P.C.D wheel will go on the 98 P.C.D Petra. Now this is highly not recommended as the wheel will not be an exact fit on the hub. Some tyre guys also do the vice versa i.e fit a 98 P.C.D rim on a 100 P.C.D hub by shaving the insides of the bolt holes on the wheel and forcing the rim on the hub. Thi is also a very stupid thing to do. All this happens in India only as the dealers are so happy that a customer has come to them or liked a design they will sell sell them anything as long as it fits. In singapore where I usually buy Rims for Mercedes they are so particular that they will not sell you rims with the wrong offset. That is being really professional. Cheers.
	() Thanks

6th September 2005, 11:27	#7
DRC BHPian Join Date: Dec 2004 Location: Cockpit Posts: 907 Thanked: 67 Times View My Garage	Now, That I am planning to go for the alloys, (thou not immediately) and doing my home work.. How can I source 98PCD wheels... I visited aura website and find the 98PCD wheels, but the dealers say they never make them..I am not sure though, but all of whom I spoke to had the same say!!
	() Thanks

6th September 2005, 12:00	#8
PJSPEED BHPian Join Date: Jul 2005 Location: Chennai Posts: 171 Thanked: 3 Times View My Garage	Hi, If you are intrested in BBS let me know.......... We have RW 7 X 15" with PCD 98 Center bore of 58.1 Recommended tyre size 195/50R 15,205/50R 15 or 215/50 R 15 PJ
	() Thanks

21st September 2005, 22:27	#10
Edmund BHPian Join Date: Feb 2005 Location: Stuttgart, Germany. Posts: 831 Thanked: 175 Times View My Garage	Help with my PCD!!!! Well a friend of mine is coming down from the states and i've asked him to get me a set of spacers for my rear wheels as the track width is less than that of the front wheels......... Now the question i have is the PCD of my cars wheels as measured by me is 120.00mm can anyone confirm this for me??? I didint wanna start a new thread for this question, So if anyone can confirm that for me it'll be great........
	() Thanks

22nd September 2005, 17:44	#13
Edmund BHPian Join Date: Feb 2005 Location: Stuttgart, Germany. Posts: 831 Thanked: 175 Times View My Garage	Somebody........help!!!!!
	() Thanks