oreo

Does anyone know which inside diameter is required for an 18" wheel to clear the PCCB calipers on a 997.1 GT3? Interested in a set of ATS GTR Motorsport wheels but have not seen whether they have been used on PCCB cars before. Inside diameter is 44 cm.

savyboy

Dang, that is a tasty wheel! Me Likee. What are the weights and load ratings?

mdrums

Onlt goes to 11" wide?...not wide enough for GT3 Porsche rear wheel

Mvez

Not sure about ID, but for 5 lug, just get a set of 18" CCW's and forget about it. Fits PCCB, lightweight, forged, and cheap compared to the others.

andrewdr

I have 18" Fikse and they clear, i will measure when off the car but if you called them i am sure they will give you the inside diameter.

mdrums

Yep CCW 9x18 and 12x18 has proper fit they are top quality forged, no big overhead so the price is only $2900! Wish they made center locks though.

NJ-GT

16.96", be aware that some wheels can have an even larger inner diameter on the inner edge, and a smaller inner diameter near the outer edge that won't clear the PCCB calipers.

Another measurement necessary is the distance from the calipers to the wheel spokes. This measurement I don't have, but most wheels clear this distance.

oreo

Thank you very much! Should (in theory) have 3 mm clearance then and it is then worthwhile to take the trip to test them on the car

Probably would if I lived in the US - after shipping, customs & taxes the CCW's cost more than a set of BBS E88...

Many thanks for the offer - would be an interesting measurement to have to see if the wheels that fit PCCB have similar clearances, but not absolutely necessary as NJ-GT provided a useful measurement

Wheels are custom-made on order by ATS Motorsport and I have not been able to find any general spec for the wheel. Will investigate further when I have a further look at this particular wheelset, but I can recommend contacting ATS Motorsport if you want to know more - Michael Timm answered me within a couple of hours on first contact!

Thanks for the warning, but I have seen that several uses 11" rear on the .1 and for the price on these I am willing to try