Tire / wheel help needed

[Guy G]

So…..
Picking up my kit in a few weeks. Getting stuff ready.
Doing a ‘33 hot Rod , full fenders, FFR IRS, sbc
Looking at the Ridler 695 wheels.
Front - 18 x 9 5.5” bs
Rear - 20 x 10.5 6” bs

Tires
Nitto Invo Luxury
Front - 275/35 18
Rear - 285/25 20

Will this work with a fendered body?
Will I need any type of spacer?
Will they work with the FFR brakes?
I figure the “guru’s” on here would have some good advice.
Just want to make sure they will fit
Thank you for the help guys!

[33fromSD]

I'm running full fenders and I used FFR's Bonneville rims w/ Micky Thompson tires

Front = 245/40R18
Rear = 305/35R20

I have no issues with rubbing, but I did add a 2nd bump stop to the QA1 shocks in the rear because on really abrupt dips in the road the rear tires would rub the fenders slightly. Since adding the 2nd bump stop I have no more rubbing.

Jim

[Mastertech5]

What you want to get are tires that are no more than about 25.7 tire diameter per FFR specs for full fenders. Your choice for fronts seem too big, will rub on turns.The rears seem too small, will not fill wheel wells side to side. You'll have a hard time trying to inflate the rears on a 10.5" wide wheel. Mine are 295 on 10" wheels.

Fronts - 17x8.5 245/40/17. Exactly 25.7 assembled diameter
Rears - 18x10 295/40/18. 26" assembled diameter

There is a guide in the PDF manual appendix if you downloaded it.

[Guy G]

What you want to get are tires that are no more than about 25.7 tire diameter per FFR specs for full fenders. Your choice for fronts seem too big, will rub on turns.The rears seem too small, will not fill wheel wells side to side. You'll have a hard time trying to inflate the rears on a 10.5" wide wheel. Mine are 295 on 10" wheels.

Fronts - 17x8.5 245/40/17. Exactly 25.7 assembled diameter
Rears - 18x10 295/40/18. 26" assembled diameter

There is a guide in the PDF manual appendix if you downloaded it.

Ok
Thoroughly confused
Based on tiresize.com,
your rears are 27.3 diameter. 295/40/18 on 18x10 rims
Your fronts are 24.7 diameter. 245/40/17 on 17x8.5 rims
I don’t get the size differences?
I believe what you’re telling me, but based on your assembled measurements you gave me, they are to large for the full fenders
Now this is all based on info from tiresize.com.
Do I not rely on their info?
God I hate this part!
I did go by the 25.7 that FFR recommends. And I thought the sizes I chose would have worked. They both come in at 25.6
( I miss the old days of G-60 tires for everything!)
PS….found a 10” wheel from ridler for the rears!

[RoadRacer]

295/40/18 certainly computes to 27.3
Yep I agree with your math

[Mastertech5]

Well I measured them with a square and that's what I got. I don't know. I am using the lower suspension holes and have the rear ride height set at 6 inches. Plenty of room.

[33fromSD]

Ok
Thoroughly confused
Based on tiresize.com,
your rears are 27.3 diameter. 295/40/18 on 18x10 rims
Your fronts are 24.7 diameter. 245/40/17 on 17x8.5 rims
I don’t get the size differences?
I believe what you’re telling me, but based on your assembled measurements you gave me, they are to large for the full fenders
Now this is all based on info from tiresize.com.
Do I not rely on their info?
God I hate this part!
I did go by the 25.7 that FFR recommends. And I thought the sizes I chose would have worked. They both come in at 25.6
( I miss the old days of G-60 tires for everything!)
PS….found a 10” wheel from ridler for the rears!

Tires/Wheels and paint color were the two most stressful parts of my build.

On Tire/Wheels after scratching my head for a couple months I finally said f**k-it and decided I liked the FFR Bonneville wheel/tire package enough where I was comfortable FFR knew enough where fit would not be an issue. Once they finally arrived, I was very happy with my decision because it was the look I was going for and the fit was dead on.

Funny thing is on the 55 Ford F100 I finished building this year, there too, tire/wheels & color were my stress points.

Jim