We designed the GA1R first. Then we figured out that we could make it lighter and have easier access to the lug nuts, if we created an Open Lug version (this became the GA1R Open Lug). Then we figured out that they would be easier for the pit crews to handle, if we tapered the outer edge between the spokes. That final version became the GS1R. So technically: GA1R has a traditional center cap and traditional lug holes. GA1R Open Lug has the open lug exposed lug holes. GS1R has the tapered outer edge.

You said it!

It's a SUPER clean setup! 💚

That it is!

We use Haas lathes and mills.

Not a problem. The adapter just bolts to your multi-lug hub with the special drive pin lug nuts that are included in the kit. So it just bolts on and off. You can find a better explanation here: www.pro-touring.com/threads/126594-Forgeline-Flush-Loc-Centerlock-Conversion-Kit

The smallest diameter of road wheels that we make (as of 2022) is 17 inch. So if you need a wheel smaller than 17 inch diameter, then we are currently unable to make it.

Good story, and nice old truck

That's not anything that we wish to pursue at this time.

No. The kit includes special lug nut/drive pins to attach the centerlock adapter to the original hub. These lug nut/drive pins also serve as the torque transfer mechanism, so they slide into the back of the wheel - which means that we need to make wheels to work with the adapters that are machined with pockets on the back side to receive the drive pins. Also the adapter consumes a certain amount of space outboard from the hub (about 9mm), so we need to make a custom wheel to work with the adapter that accounts for this extra 9mm. Hence, we need to make a custom wheel that is engineered to work with the custom adapter. Both the wheel and the adapter are custom engineered for each vehicle application and to work together.

@nelson Where you able to find any center lock conversion kits to fit OEM wheels?

Are you asking if we can make the Centerlock Conversion kit in a 4 lug? Yes we can, as long as the 4-lug bolt diameter isn't too small. The size of the adapter snout is the limiting factor. The lug hole diameter must be larger than the adapter snout diameter.

I believe that is the RTR kit. www.rtrvehicles.com/collections/mustang-rtr-parts-15-17

We are. We inadvertently removed the kit as a catalog product on our current website and so it only shows as an option/upgrade within each wheel.

These are 19x9.5/19x12.0. But we make the OE1 wheel in 17-22 inch diameters and any width, backspace, offset, or fitment that you need.

These are 19x10 & 19x12, but we can make the RBC3 in any width or fitment between 18-22 inch diameters.

@@Forgeline with that 19×12 did you had to notch the frame

Sort of. So the "Black Ice" is a unique finish that is available only on the Flow Formed wheels. But it is very similar (but not an exact match) to the "Black Chrome PVD" that we apply to the forged wheels. So technically, no, we can't do "Black Ice" on the forged beadlock wheels, but we CAN do Black Chrome PVD. But we can only do the Black Chrome PVD on the wheel itself; we can't put it on the beadlock ring. So you'd need to do an alternate color for the outer ring.

@@Forgeline thank you so much! Your wheels present incredibly well, something that most beadlocks don’t pull off

We've actually assembled a wheel/tire package for the S550 Mustang comprised of the 20-inch F01 wheel with a 275/35R20 & 295/35R20 Falken FK510 tire. As of July 2021, we retail the package for $760 per corner. We would like to eventually offer these in a 19 for the Mustang so that a tire upgrade is not required. But I don't know how far away that is.