(18x9" ET42 SM-10s in Anthracite W/ 265/645-18 Pirelli DH Slicks)
Models Covered in This Guide
2009-2014 Audi TT RS (8J)
The second-generation Audi TT RS initially made its debut in 2009 as the first TT to get the "RS" treatment from Audi's high-performance sub brand. The 8J TT RS featured an all-new 2.5 liter turbocharged inline 5 cylinder, which has been praised by enthusiasts for its strong power band and iconic engine sound. With Audi's legendary Quattro AWD system, along with both manual and dual-clutch transmission options, the TT RS offers a ton of performance in a relatively light weight package. With the right modifications, these cars can be incredibly quick and competent both on the street and at the track.
Taking into consideration the Quattro AWD system and front-biased weight distribution of the TT RS, a rotatable square setup is a must to ensure a neutral handling balance and even tire wear at all four corners. Shedding unsprung weight by downsizing to an 18" wheel will also improve upon the overall handling, braking, and acceleration characteristics of the car.
Our 18x9" ET42 SM-10 compliments the 8J TT RS perfectly for both street and track use. With a 5x112 bolt pattern and a 57.1mm center bore, our VW/Audi-specific SM-10 provides a complete bolt-on fitment without the need for centering rings, spacers, or hub adapters. Designed with brake clearance as a priority, the 18x9" ET42 SM-10 can also clear the massive factory 4-piston 370mm front brakes with room to spare.
Bolt Pattern |
Center Bore |
Lug Seat |
Thread Pitch M14x1.5mm |
Available Finishes
SM-10 Flow Formed
Performance Street & Track: The Perfect HPDE-Ready Fitment For Your TT RS
(18x9" ET42 SM-10s in Anthracite W/ 265/645-18 Pirelli DH Slicks)
These fitments are the perfect match for weekend track warriors and hardcore racers seeking to maximize the wheel and tire size that they can fit on their Audi TT RS. These aggressive wheel specs will occasionally require supportive modifications commonly found on track cars, such as increased negative camber. While certain configurations can provide a complete direct fit on a stock car, additional modifications may be required for a rub-free fitment depending on your suspension setup and specific tire selection. With a focus on brake clearance, our 18" fitments are able to clear the standard 4-piston 370mm factory TT RS brakes with ease, as well as a variety of aftermarket BBK's.
Front & Rear: 18x9” ET42 with 265/35-18 tires
- Additional front negative camber is recommended when using aggressive track-focused tire compounds.
- 255/35-18 tires can also be used as an easier fit.
- No additional wheel hardware is required (centering rings, hub adapters, spacers).
APEX Staff tire recommendations:
- All-Season: Michelin Pilot Sport AS4: 255/35-18, 265/35-18
- Performance Summer: Michelin Pilot Sport 4S: 255/35-18, 265/35-18
- Extreme Performance Summer: Bridgestone Potenza RE-71R: 255/35-18, 265/35-18
- R-Compound: Nitto NT01: 255/35-18, - Michelin Pilot Sport Cup 2: 255/35-18, 265/35-18 Toyo Proxes R888R: 255/35-18, 265/35-18
(18x9" ET42 SM-10s in Anthracite W/ 265/645-18 Pirelli DH Slicks)
(18x9" ET42 SM-10s in Anthracite W/ 265/645-18 Pirelli DH Slicks)
(18x9" ET42 SM-10s in Anthracite W/ 265/645-18 Pirelli DH Slicks)
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