WELD RT-S S81 Forged Wheel for 2015+ Ford Mustang (5x114.3)
WELD
WELD RT-S S81 Forged Wheel for 2015+ Ford Mustang (5x114.3)
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Not sure it fits?
Text us your year and model. We confirm fitment before it ships.
Vertex Wheel Studio
See it on your carTry this wheel on your Mustang in its factory paint before you buy.
Talk to our team: 920-716-4005, Monday to Friday, 10am to 6pm CT.
WELD RT-S forged drag wheel for the 2015+ Mustang (S550 and S650), sold individually. Choose the size and finish. We order the WELD part number (offset, backspace and pad height) that matches your car and wheel position from WELD's RT-S fitment chart below, so tell us your model, brakes and front or rear when you order, or call (920) 716-4005.
- Price is per wheel.
- Black Center finish on every design; Polished is also offered on the S71, S77 and S81.
- Fitments are for factory suspension, wheel wells and brakes unless a note says otherwise.
- 5x4.5 (5x114.3) bolt circle with 14mm x 1.5 studs. Conical lug nuts are required for 17, 18 and 20 in. wheels.
- Does not fit the 2015+ Shelby GT350 or the 2020+ Shelby GT500.
- Other sizes and offsets are available from WELD. Call us for anything not listed.
2024+ Mustang with Performance Pack
6-piston front and 4-piston rear brakes.
| Size | Position | Offset | Backspace | Pad |
|---|---|---|---|---|
| 18x10 | Rear | +41mm | 7.1" | High |
| 20x9 | Front | +32mm | 6.25" | High |
| 20x11 | Rear | +45mm | 7.75" | High |
The 20 in. sizes are an aggressive fit.
2015-2023 Mustang GT with Brembo brakes
15 in. front rotors.
| Size | Position | Offset | Backspace | Pad |
|---|---|---|---|---|
| 17x10 | Rear | +64mm | 8.0" | Low |
| 17x10.5 | Rear | +57mm | 8.0" | Low |
| 18x5 | Front | -23mm | 2.1" | High |
| 18x8 | Front | +15mm | 5.1" | High |
| 18x9 | Front | +28mm | 6.1" | High |
| 18x9.5 | Front | +50mm | 6.6" | High |
| 18x9.5 | Rear | +50mm | 7.2" | Low |
| 18x10 | Rear | +56mm | 7.7" | Low |
| 18x11 | Rear | +43mm | 7.7" | Low |
| 18x11 | Front/Rear | +53mm | 8.1" | High |
| 20x7 | Front | +6mm | 4.25" | High |
| 20x8 | Front | +19mm | 5.25" | High |
| 20x9 | Front | +32mm | 6.25" | High |
| 20x10.5 | Rear | +43mm | 7.5" | Low |
| 20x11 | Rear | +50mm | 8.0" | Low |
| 20x11 | Rear | +48mm | 7.9" | Medium |
17x10.5 rear: extremely aggressive fitment, watch tire size.
18x11 front/rear (+53mm): square setup, requires long studs and a 10-15mm front spacer depending on strut.
20x11 rear (+48mm, medium pad): flush fit with deep lip for 275/30R20 and 315/30R20 tires.
2015-2023 Mustang EcoBoost/GT with standard 14 in. rotors
| Size | Position | Offset | Backspace | Pad |
|---|---|---|---|---|
| 15x4 | Front | -27mm | 1.5" | Medium |
| 15x9 | Rear | +37mm | 6.5" | Medium |
| 17x5 | Front | -21mm | 2.2" | High |
| 17x8 | Front | +18mm | 5.2" | High |
| 17x9 | Front | +31mm | 6.2" | High |
| 17x9.5 | Front | +37mm | 6.7" | High |
| 17x9.5 | Rear | +44.5mm | 7.0" | Low |
| 17x10 | Rear | +64mm | 8.0" | Low |
| 17x10.5 | Rear | +57mm | 8.0" | Low |
| 18x5 | Front | -23mm | 2.1" | High |
| 18x8 | Front | +15mm | 5.1" | High |
| 18x9 | Front | +28mm | 6.1" | High |
| 18x9.5 | Front | +50mm | 6.6" | High |
| 18x10 | Rear | +31mm | 6.7" | Low |
| 18x11 | Rear | +43mm | 7.7" | Low |
| 18x11 | Front/Rear | +53mm | 8.1" | High |
| 20x7 | Front | +6mm | 4.25" | High |
| 20x8 | Front | +19mm | 5.25" | High |
| 20x9 | Front | +32mm | 6.25" | High |
| 20x10.5 | Rear | +43mm | 7.5" | Low |
| 20x11 | Rear | +50mm | 8.0" | Low |
| 20x11 | Rear | +48mm | 7.9" | Medium |
15x4 front: requires a small brake kit.
15x9 rear: requires a rear brake conversion and rear sway bar relocation brackets; the lower control arm bolt must be shaved down for clearance.
18x11 front/rear (+53mm): square setup, requires long studs and a 10-15mm front spacer depending on strut.
20x11 rear (+48mm, medium pad): flush fit with deep lip for 275/30R20 and 315/30R20 tires.
Sold and installed at Vertex Motorsports in Appleton, WI. Call (920) 716-4005.
Installed by Vertex
Want it installed? We do that in-house.
Order it for your own build, or have our team in Appleton install it. Parts and installation can be quoted together.
Not sure it fits? Send us your year and model and we confirm before it ships.