20mm H&R Wheels Spacers Front and Rear?
#1
06-26-2015, 07:37 PM
20mm H&R Wheels Spacers Front and Rear?
I want to order these tonight, but I have read so much mixed reviews on going with 15 or 20mm h&r spacers for both the front and rear. I will not be lowering my car and I am on the stock 19's on my 07 xkr. would 20mm front and rear be a safe bet and make the wheels close to flush with the outside of the fender well? tnx.
#2
06-26-2015, 07:58 PM
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#3
06-26-2015, 10:41 PM
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#5
06-27-2015, 02:08 AM
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#6
06-27-2015, 10:14 AM
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You should truly measure where your tires sit right now in relations to the fender. For most of us posting here 20mm front and 15 at the rear seemed to work best. I did put 20mm at the rear initially but, did not like how far the wheel moved out and replaced it with 15mm.
I very much respect Plums contribution to these forums but, I must say that I never had any issues with offsetting my wheels by either different wheel offsets or by the use of spacer on any of my cars, including on my racing cars. I have now used H&R spacers on 3 Jaguars with good results. Some manufacturers, IMO, offset their wheels to the inside, likely to accommodate winter chains or driving aids.
I very much respect Plums contribution to these forums but, I must say that I never had any issues with offsetting my wheels by either different wheel offsets or by the use of spacer on any of my cars, including on my racing cars. I have now used H&R spacers on 3 Jaguars with good results. Some manufacturers, IMO, offset their wheels to the inside, likely to accommodate winter chains or driving aids.
#7
06-28-2015, 07:11 PM
Veteran Member
Premature Wheel Bearing Wear and Increased Stud Failure Risk
My thanks to Chris "Thermo" Coleman for his excellent explanation on the XJ Forum: https://www.jaguarforums.com/forum/x...pacers-145088/ See his posts ## 2 and 4. I thought his post #2 was particularly important:
If you decide to add wheel spacers, make sure they are hub centric and buy a torque wrench to check the tightness of the wheel nuts every month and confirm they are all 92 lb.-ft. (unless otherwise specified by the spacer manufacturer). Loose or unevenly tightened wheel nuts will cause premature wheel bearing and wheel stud failure, with potentially catastrophic results, particularly if a front wheel falls off. And forget about making any warranty claims. Your car, your life, your choice.
To me, the safety risks of spacers outweigh the perceived style benefits. It's safer to buy new, wider wheels and tires that fit properly to get the look you want. Just my
If this was helpful, please press
at the bottom right.
Stuart
"Here is the short of the issue. The car was engineered to keep the center of the rim in line vertically with the center of the bearing. This causes the bearing to see minimal side to side loading, resulting in maximum bearing life. When you start adding a wheel spacer, you are pulling the center of the wheel out of alignment with the bearing. So, even with the car sitting still, the bearing is going to see some amount of twisting force where the bottom of the tire is trying to come out from under the car and the top is trying to sink into the center of the car. Obviously, the larger the spacer, the larger this force becomes. It is this twisting force that leads to bearing failure. Is the bearing going to fail in 1,000 miles if you add a 1" spacer. Probably not. In 50,000 miles, the odds are much, much higher.
With this being said, you are going to find spacers in 2 basic thicknesses. You have your 1/4" think pieces and then you have your 1"+ size. The basis behind this is that to get more than a 1/4" thickness in the spacer, you would have to either get longer studs (now the studs are seeing a lot of extra stress since they are feeling this twisting force now) or the spacer needs to be thick enough to allow one set of nuts to be applied to hold the spacer to the hub and then a second set of studs are used to hold the rim/tire to the car. This takes roughly 1".
You can do it, but realize that there may be a price to be paid for what you are after."
Many people have used wheel spacers with no problems, but others have had big-time problems. Just Google "wheel spacers problems", and decide for yourself. With this being said, you are going to find spacers in 2 basic thicknesses. You have your 1/4" think pieces and then you have your 1"+ size. The basis behind this is that to get more than a 1/4" thickness in the spacer, you would have to either get longer studs (now the studs are seeing a lot of extra stress since they are feeling this twisting force now) or the spacer needs to be thick enough to allow one set of nuts to be applied to hold the spacer to the hub and then a second set of studs are used to hold the rim/tire to the car. This takes roughly 1".
You can do it, but realize that there may be a price to be paid for what you are after."
If you decide to add wheel spacers, make sure they are hub centric and buy a torque wrench to check the tightness of the wheel nuts every month and confirm they are all 92 lb.-ft. (unless otherwise specified by the spacer manufacturer). Loose or unevenly tightened wheel nuts will cause premature wheel bearing and wheel stud failure, with potentially catastrophic results, particularly if a front wheel falls off. And forget about making any warranty claims. Your car, your life, your choice.
To me, the safety risks of spacers outweigh the perceived style benefits. It's safer to buy new, wider wheels and tires that fit properly to get the look you want. Just my
If this was helpful, please press
at the bottom right.Stuart
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#8
06-28-2015, 08:08 PM
You should truly measure where your tires sit right now in relations to the fender. For most of us posting here 20mm front and 15 at the rear seemed to work best. I did put 20mm at the rear initially but, did not like how far the wheel moved out and replaced it with 15mm.
I very much respect Plums contribution to these forums but, I must say that I never had any issues with offsetting my wheels by either different wheel offsets or by the use of spacer on any of my cars, including on my racing cars. I have now used H&R spacers on 3 Jaguars with good results. Some manufacturers, IMO, offset their wheels to the inside, likely to accommodate winter chains or driving aids.
I very much respect Plums contribution to these forums but, I must say that I never had any issues with offsetting my wheels by either different wheel offsets or by the use of spacer on any of my cars, including on my racing cars. I have now used H&R spacers on 3 Jaguars with good results. Some manufacturers, IMO, offset their wheels to the inside, likely to accommodate winter chains or driving aids.
#9
06-29-2015, 09:07 AM
Former Sponsor
I have 25mm on front and rear. Going to make the rears 20mm when I install springs.
Depending on tire and spacer combo you may rub.
With Pirelli's no rubbing on front, only minor rub on rear with large bumps at speed.
With Hankooks, the rear's rubbed more. Same size tire, just different sidewall.
The Pirelli's are actually wider , but the sidewalls are more angled.
Hope this helps.
Depending on tire and spacer combo you may rub.
With Pirelli's no rubbing on front, only minor rub on rear with large bumps at speed.
With Hankooks, the rear's rubbed more. Same size tire, just different sidewall.
The Pirelli's are actually wider , but the sidewalls are more angled.
Hope this helps.
#10
06-29-2015, 09:54 AM
I have 25mm on front and rear. Going to make the rears 20mm when I install springs.
Depending on tire and spacer combo you may rub.
With Pirelli's no rubbing on front, only minor rub on rear with large bumps at speed.
With Hankooks, the rear's rubbed more. Same size tire, just different sidewall.
The Pirelli's are actually wider , but the sidewalls are more angled.
Hope this helps.
Depending on tire and spacer combo you may rub.
With Pirelli's no rubbing on front, only minor rub on rear with large bumps at speed.
With Hankooks, the rear's rubbed more. Same size tire, just different sidewall.
The Pirelli's are actually wider , but the sidewalls are more angled.
Hope this helps.
#11
06-30-2015, 08:23 AM
Former Sponsor
I have the 20's Sentas. I would think the 20mm should work fine with your 19's.
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multistrada74 (06-30-2015)
#13
07-01-2015, 07:10 PM
Multistrada74, I have 19" on my 07' and placed 15mm on rears and 20mm on front. I originally ordered just the 20mm and placed them onto the rear of the car for a test fit. I would say that they fit fine and probably would have kept them there if I were not thinking of lowering the car. As such I ordered a 15mm set and placed them in the rear nd moved the 20mm to the front. As others have stated ,make sure you buy good quality hub centric spacers. And yes, the engineering will be slightly off, based on past experiences, I am comfortable at a 20mm max 'push-out'.
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multistrada74 (07-08-2015)
#14
07-08-2015, 07:00 AM
Multistrada74, I have 19" on my 07' and placed 15mm on rears and 20mm on front. I originally ordered just the 20mm and placed them onto the rear of the car for a test fit. I would say that they fit fine and probably would have kept them there if I were not thinking of lowering the car. As such I ordered a 15mm set and placed them in the rear nd moved the 20mm to the front. As others have stated ,make sure you buy good quality hub centric spacers. And yes, the engineering will be slightly off, based on past experiences, I am comfortable at a 20mm max 'push-out'.
#15
07-09-2015, 11:19 AM
Veteran Member
#16
07-09-2015, 11:48 AM
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Cee Jay (07-09-2015)
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