Does anyone know what the offset on these are? : MGB & GT Forum : The MG Experience

Does anyone know what the offset on these are? #1
Noble66 Noble Bradford Orlando, FL, USA Sign in to contact 1964 MG MGB "Black Betty" 1966 MG MGB "Betty White" 1969 MG MGC GT "Lola"	Topic Creator (OP) Apr 30, 2017 06:49 PM Top Contributor Joined 13 years ago 2,533 Posts

They rub in hard cornering with just me in the car and any cornering with a passenger.

I'm thinking about putting on a set of rostyles (with new tires) just to see if they rub.

Obviously nobody wants to see rostyles on a pull handle but I'm willing to sacrifice for the experiment.

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Re: Does anyone know what the offset on these are? #2
ghnl Eric Russell Mebane, NC, USA Sign in to contact 1961 MG MGA "Calvin"	Apr 30, 2017 07:23 PM Top Contributor Joined 12 years ago 12,760 Posts

Most aftermarket wheels are available in a variety of offsets/back spacing. Best would be to remove the wheel and measure.

http://www.4wheelparts.com/tire-wheel-package-guide/wheel-offset-backspacing.aspx

MGB's usually need a wheel with positive 24mm offset (approx 1" winking smiley

. Note that offset is not the same as back spacing.

Eric Russell ~ Mebane, NC
1961 MGA #61, 1981 Alfa Romeo GTV6, 1984 Alfa Romeo Spider, 1991 Honda ST1100

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Re: Does anyone know what the offset on these are? #3
MG Cruiser Keith Delta4 Rockingham, WA, Australia Sign in to contact 1970 MG MGB "Moneypit"	Apr 30, 2017 07:45 PM Joined 15 years ago 2,998 Posts

What size tires?

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Re: Does anyone know what the offset on these are? #4
oleanderjoe Joseph Baba Fresno, CA, USA Sign in to contact 1962 Triumph Spitfire 4 (MkI) "SPITTY"	Apr 30, 2017 08:28 PM Top Contributor Joined 10 years ago 27,558 Posts

If those are 15" they will rub unless you roll up the inner wheel arch lip. Usually worse on one side of the car as opposed to the other side. !5" on an MGB are NOT Good. Car was designed for 14"

IN ALL SUBJECTS.: For those who believe, no proof is needed. For those who don’t believe, no proof is possible.

"Strive for perfection in everything. Take the best that exists and make it better. If it doesn't exist, create it. Accept nothing nearly right or good enough"
Sir Henry Royce
co-founder of Rolls-Royce .

"I take no credit for my own, of another man's fame".
Joe Baba 2021

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British Car Service Tools

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Re: Does anyone know what the offset on these are? #5
mgc6165 Larry "Lonesome" Rhodes Memphis, TN, USA Sign in to contact	Apr 30, 2017 08:35 PM Joined 16 years ago 42 Posts

In reply to # 3501226 by oleanderjoe If those are 15" they will rub unless you roll up the inner wheel arch lip. Usually worse on one side of the car as opposed to the other side. !5" on an MGB are NOT Good. Car was designed for 14"

Odd....the MGC used 15" rims.

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Re: Does anyone know what the offset on these are? #6
Mustangsix Jack Collins Oviedo, FL, USA Sign in to contact 1969 MG MGC GT 1973 MG MGB GT	Apr 30, 2017 08:47 PM Top Contributor Joined 13 years ago 5,869 Posts

Noble,
What kind of shape are all your spring and shackle bushings in?

Ceres Motorsports, LLC. www.ceresmotorsports.com

Ceres Motorsports specializes in the repair, restoration, and customization of classic British cars including MG, Triumph, and many other makes.

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Re: Does anyone know what the offset on these are? #7
Noble66 Noble Bradford Orlando, FL, USA Sign in to contact 1964 MG MGB "Black Betty" 1966 MG MGB "Betty White" 1969 MG MGC GT "Lola"	Topic Creator (OP) Apr 30, 2017 09:48 PM Top Contributor Joined 13 years ago 2,533 Posts

In reply to # 3501243 by Mustangsix Noble,
What kind of shape are all your spring and shackle bushings in?

They could use a refresh Jack. It's on the list for next weekend. But I still think the wheels may be pushed out a little.

These aren't my favorite wheels anyway and I'm really wanting to move up to 15 inch wheels. Maybe I'll use this as an excuse.

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Re: Does anyone know what the offset on these are? #8
Noble66 Noble Bradford Orlando, FL, USA Sign in to contact 1964 MG MGB "Black Betty" 1966 MG MGB "Betty White" 1969 MG MGC GT "Lola"	Topic Creator (OP) Apr 30, 2017 09:57 PM Top Contributor Joined 13 years ago 2,533 Posts

In reply to # 3501189 by MG Cruiser What size tires?

185/70/14

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Re: Does anyone know what the offset on these are? #9
Mustangsix Jack Collins Oviedo, FL, USA Sign in to contact 1969 MG MGC GT 1973 MG MGB GT	Apr 30, 2017 09:57 PM Top Contributor Joined 13 years ago 5,869 Posts

Give me a call. We can test a couple of options.

Ceres Motorsports, LLC. www.ceresmotorsports.com

Ceres Motorsports specializes in the repair, restoration, and customization of classic British cars including MG, Triumph, and many other makes.

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Re: Does anyone know what the offset on these are? #10
Noble66 Noble Bradford Orlando, FL, USA Sign in to contact 1964 MG MGB "Black Betty" 1966 MG MGB "Betty White" 1969 MG MGC GT "Lola"	Topic Creator (OP) Apr 30, 2017 10:00 PM Top Contributor Joined 13 years ago 2,533 Posts

In reply to # 3501294 by Mustangsix Give me a call. We can test a couple of options.

Wilco Jack.

I'd also like to see about getting some of those rear shock mounts.

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Re: Does anyone know what the offset on these are? #11
Mustangsix Jack Collins Oviedo, FL, USA Sign in to contact 1969 MG MGC GT 1973 MG MGB GT	Apr 30, 2017 10:02 PM Top Contributor Joined 13 years ago 5,869 Posts

Yep. I need a banjo axle guinea pig for those.

Ceres Motorsports, LLC. www.ceresmotorsports.com

Ceres Motorsports specializes in the repair, restoration, and customization of classic British cars including MG, Triumph, and many other makes.

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Re: Does anyone know what the offset on these are? #12
V8MGBV8 Carl Floyd Kingsport, TN, USA Sign in to contact	Apr 30, 2017 10:05 PM Top Contributor Joined 19 years ago 15,771 Posts

In reply to # 3501226 by oleanderjoe "5" on an MGB are NOT Good. Car was designed for 14"

I could be wrong, but they likely worked witb the overall diameter. Some 15 incb tire/wheel combos are a smaller diameter than stock.

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Re: Does anyone know what the offset on these are? #13
oleanderjoe Joseph Baba Fresno, CA, USA Sign in to contact 1962 Triumph Spitfire 4 (MkI) "SPITTY"	Apr 30, 2017 10:07 PM Top Contributor Joined 10 years ago 27,558 Posts

You are right: MGC used 15" STOCK type wheels. The 15" MINI Lite or after market wheels rub. PERIOD. ....... SOOOOOOOOOOOOOOOOOOOO either go back to stock, trade those off for difFerent ones or "ROLL THE LIP BACK" UNDER. PERFECT TIME IS IF YOU ARE RE=PAINTING. I did not SAY MAKE FENDER FLAIRS. Rolling the lip back up does NOT change the original shape of the wheel well

IN ALL SUBJECTS.: For those who believe, no proof is needed. For those who don’t believe, no proof is possible.

"Strive for perfection in everything. Take the best that exists and make it better. If it doesn't exist, create it. Accept nothing nearly right or good enough"
Sir Henry Royce
co-founder of Rolls-Royce .

"I take no credit for my own, of another man's fame".
Joe Baba 2021

Original Duplicates www.britishcarservicetools.com

British Car Service Tools

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Re: Does anyone know what the offset on these are? #14
Noble66 Noble Bradford Orlando, FL, USA Sign in to contact 1964 MG MGB "Black Betty" 1966 MG MGB "Betty White" 1969 MG MGC GT "Lola"	Topic Creator (OP) Apr 30, 2017 10:47 PM Top Contributor Joined 13 years ago 2,533 Posts

In reply to # 3501305 by oleanderjoe You are right: MGC used 15" STOCK type wheels. The 15" MINI Lite or after market wheels rub. PERIOD. ....... SOOOOOOOOOOOOOOOOOOOO either go back to stock, trade those off for difFerent ones or "ROLL THE LIP BACK" UNDER. PERFECT TIME IS IF YOU ARE RE=PAINTING. I did not SAY MAKE FENDER FLAIRS. Rolling the lip back up does NOT change the original shape of the wheel well

GRRRRR!!! So many CAPS! So much anger!!

I'm just asking if anyone knew what the offset is on these pretty standard looking mini-lites.

I have an MGC/GT with center lock mini-lites. Yes they rub but that has more to do with the tire size (195/60/15) than the fact that they're mini-lites. Obviously the PO was pretty aggressive with tire size.

I also know about rolling the lip as it was done to fit some very nice 14 inch American Racing "Cosmics" on my 74B.

I also know that with proper selection of wheel and tire combination a 15 inch wheel works very well on a B without rolling the lip.

But again, my question was specifically about this wheel.

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Re: Does anyone know what the offset on these are? #15
dterhune David Terhune Cleveland, TN, USA Sign in to contact 1957 MG MGA Coupe 1970 MG MGB GT 1974 MG MGB 1980 Triumph TR8	Apr 30, 2017 10:50 PM Joined 20 years ago 2,938 Posts

"You are right: MGC used 15" STOCK type wheels. The 15" MINI Lite or after market wheels rub. PERIOD. ....... "

This is not true ... Have been running 15" minator on my mgb with 185/70 for 10 years....

David Terhune

My Blog http://mymgcars.blogspot.com/

1970 MGB-GT, 1974 MGB and 1957 MGA Coupe

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