Challenger SRT Demon 170 (2023) Wheel Fitment
Challenger SRT Demon 170 (2023): 5x115 bolt pattern, 71.5mm center bore. Factory wheels: F 18x8.0J ET18 / R 17x11.0J ET24. Reference fitment ranges.
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F 18x8.0J ET18 / R 17x11.0J ET24 |
| Flush Fitment | F 20x9.5J ET15 / R 17x11.5J ET20 |
| Maximum Aggressive | F 20x10.0J ET12 / R 17x12.0J ET15 |
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.


Dodge Challenger SRT Demon 170 OE Wheel Specs
The 2023 Dodge Challenger SRT Demon 170 (Coupe) uses a 5x115 bolt pattern with a 71.5mm center bore. Factory wheels are F 18x8.0J ET18 / R 17x11.0J ET24.
Why the factory spec works for most owners:
- Keeps unsprung weight low to preserve the factory handling balance
- Matches the wider, performance-oriented tire sizing typical of this platform
- Maintains clearance for the factory brake package and suspension geometry
- Balances grip with ride comfort for daily and spirited driving
Flush Fitment
For a flush look with minimal rubbing, F 20x9.5J ET15 / R 17x11.5J ET20 is the recommended starting point on a stock or mildly lowered Dodge Challenger SRT Demon 170.
Maximum Aggressive Fitment
F 20x10.0J ET12 / R 17x12.0J ET15 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
5-Tier Configuration Options
A Flush Fit (Conservative) F 20x9.5J ET15 / R 17x11.5J ET20
Recommended setup: F 20x9.5J ET15 / R 17x11.5J ET20 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $450-800 (wheels + tires + install)
B Comfortable Upgrade F 20x9.5J ET14 / R 17x11.5J ET19
Recommended setup: F 20x9.5J ET14 / R 17x11.5J ET19 | Economy impact: -2 to -4% | Best for: Daily / street
Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,950-2,550 (wheels + tires + install)
C Balanced F 20x10.0J ET14 / R 17x12.0J ET18
Recommended setup: F 20x10.0J ET14 / R 17x12.0J ET18 | Economy impact: -4 to -6% | Best for: Street
Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆
Estimated cost: $2,600-3,400 (wheels + tires + install)
D Aggressive F 20x10.0J ET13 / R 17x12.0J ET16
Recommended setup: F 20x10.0J ET13 / R 17x12.0J ET16 | Economy impact: -6 to -9% | Best for: Show / occasional track
Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆
Estimated cost: $3,900-5,000 (wheels + tires + install)
E Max Aggressive F 20x10.0J ET12 / R 17x12.0J ET15
Recommended setup: F 20x10.0J ET12 / R 17x12.0J ET15 | Economy impact: -8 to -12% | Best for: Show only
Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆
Estimated cost: $4,800-6,200+ (wheels + tires + install)
Performance Comparison Matrix
| Metric | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | F 20x9.5J ET15 / R 17x11.5J ET20 | F 20x9.5J ET14 / R 17x11.5J ET19 | F 20x10.0J ET14 / R 17x12.0J ET18 | F 20x10.0J ET13 / R 17x12.0J ET16 | F 20x10.0J ET12 / R 17x12.0J ET15 |
| Economy Impact | Negligible | -2 to -4% | -4 to -6% | -6 to -9% | -8 to -12% |
| Appearance | 7/10 | 8/10 | 8.5/10 | 9/10 | 9.5/10 |
| Comfort | 9.5/10 | 9/10 | 8/10 | 6.5/10 | 4/10 |
| Install Difficulty | ★☆☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ |
| Cost Range | $450-800 | $1,950-2,550 | $2,600-3,400 | $3,900-5,000 | $4,800-6,200+ |
| Best For | Daily commuting, family use | Daily / street | Street | Show / occasional track | Show only |
Real-World Reference Cases
The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.
Case 1: Daily Driver (Flush Fit (Conservative))
Profile: Everyday driving, prioritizes comfort and low running cost.
Setup: F 20x9.5J ET15 / R 17x11.5J ET20
Cost: ~$620
Outcome: Minimal visual change, ride and fuel economy essentially unaffected.
Case 2: Balanced Enthusiast (Balanced)
Profile: Wants a sportier stance without sacrificing daily usability.
Setup: F 20x10.0J ET14 / R 17x12.0J ET18
Cost: ~$3,000
Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.
Case 3: Show Build (Max Aggressive)
Profile: Built primarily for shows or occasional track/show use.
Setup: F 20x10.0J ET12 / R 17x12.0J ET15
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE (F): 18x8.0J ET18 → ~5.21″ backspacing
- OE (R): 17x11.0J ET24 → ~6.94″ backspacing
- Flush (F): 20x9.5J ET15 → ~5.84″ backspacing
- Flush (R): 17x11.5J ET20 → ~7.04″ backspacing
- Max (F): 20x10.0J ET12 → ~5.97″ backspacing
- Max (R): 17x12.0J ET15 → ~7.09″ backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or can’t find your exact Dodge spec, or want a wheel built to a custom offset for your Dodge Challenger SRT Demon 170? Contact ANKUSI with your bolt pattern and offset target and we’ll confirm the correct forged wheel spec for your build.