Change your wheels.
Keep your hardware.
Forged 6061-T6 wheels machined for your GR Corolla, with the lug seat cut to the one your car already has — so your factory studs and lug nuts carry over. No extended studs, no aftermarket nuts, no spacers to make a generic offset work.
PURPOSEFUL DESIGN. ONE LESS THING TO MODIFY.
- CONSTRUCTION
- Forged 6061-T6
- LUG SEAT
- Cut to your car
- WHEEL STUDS
- Your factory studs
- THE RESULT
- Wheels. Without the workaround.
We cut GR Corolla sets to fit your factory lug nuts.
Bolt pattern and hub bore get a wheel onto the hub. The lug seat, the surface each nut clamps against, decides which nuts work. Seats come in three common shapes: a cone, a ball and a flat (mag) face for a nut with a washer, often with a shank. A nut clamps correctly only against the shape it was made for.
Most aftermarket wheels use one seat shape for every car. When that shape doesn’t match your nuts, you need new nuts. A lug pad thicker than stock also leaves less thread engaged, and some cars then need extended studs.
On every GR Corolla set, we cut the seat to the shape your factory nuts use.
| CHECK | Off-the-shelf wheel | [J CURVE] GR Corolla set |
|---|---|---|
| 01Lug seat | One shape for every car | Matches your nuts |
| 02Lug nuts | Often new nuts | Your factory nuts |
| 03Offset | One per part number | Set per order |
Spacers, modified hubs and aftermarket studs or nuts change the seat and stud length the wheel needs, so tell us before you order.
01 / SEAT SHAPE
A mismatched nut clamps on an edge.
A conical nut on a flat seat, or the reverse, touches the wheel along a thin line instead of a full face, and it can work loose. The bolt pattern doesn’t tell you which seat a wheel has.
02 / THREAD ENGAGEMENT
Lug pad thickness sets how much stud the nut reaches.
A thicker lug pad moves the seat away from the hub, so the nut reaches less of the stud. A common minimum is engaged thread equal to the stud diameter; below that, the wheel needs extended studs.
03 / THE DRAWING
On a GR Corolla set, you approve the seat before we cut it.
The drawing shows the full specification, seat shape included.
Your car.
Your specification.
Three designs are built for the GR Corolla. Start with the wheel; the width, offset and seat are set per order against your car.
JCR / 01CUT TO YOUR CARMN-1
FORGED ALUMINIUMTen-spoke forged 6061-T6 monoblock, machined and finished to order for your fitment.
View specifications
JCR / 02CUT TO YOUR CARFauxrizo
FORGED ALUMINIUMForged 6061-T6 monoblock, machined and finished to order for your fitment.
Ask for it by name
JCR / 03CUT TO YOUR CARLL
FORGED ALUMINIUMForged 6061-T6 monoblock, machined and finished to order for your fitment.
Ask for it by name
MONOCHROME PRODUCT VIEWS / SEE EACH WHEEL FOR AVAILABLE FINISHES.
7 more designs are forged to order the same way, for other cars. G-12 Beadlock, 6-Spoke, P-Star, Spec Miata, Rally, Pirate, Petal. Tell us the car and we cut to it. TR-6 is sold in a fixed size: it comes in the size, offset and lug seat stated on its page.
BUILT FOR THE DRIVE / STREET + CIRCUIT
The details matter.
So does the drive.
Forged wheels for people who use them.
Why do aftermarket wheels so often need new lug nuts?
Because the nut seats on the wheel, and the shape of that seat has to match the shape of the nut. Most wheels are machined with one seat and sold to every car, so if it is not the seat your nuts are made for, you need nuts that are — and depending on the combination, studs long enough to keep full thread engagement.
Can I keep my factory lug nuts and studs?
On a made-to-order design, that is what the wheel is built to do. The seat is machined to your car's rather than to a catalogue standard, so there is nothing to convert. We confirm it on the drawing before anything is cut, which means it is checked against your car rather than assumed.
Does this apply to every J Curve wheel?
It applies to every made-to-order design: each set is cut for a known car, and what changes between those designs is the face, not the approach to the connection. TR-6 is sold in a fixed size: it comes in the size, offset and lug seat stated on its page.
What if I run spacers or a modified setup?
Spacers, modified hubs and non-factory studs or nuts change the conditions and get their own review. Send the model year, the width and offset you are after, the tyre and the modifications, and we will go through the combination with you before anything is quoted.
How long does it take?
8–12 weeks from approval of the drawing.
Where do I choose size, finish and price?
On the wheel's own page where there is one, and through an inquiry for anything that is not a standard configuration. On a made-to-order design, sizes and offsets are set per order against your car either way; a design sold in a fixed size has the ones on its page.
YOUR NEXT SET STARTS HERE.