Cosmos

RTX Cosmos: A Clean Monoblock Wheel for Everyday Compacts and Sedans

The RTX Cosmos is a monoblock wheel built for daily-driven compacts, sedans and small crossovers. It's a single-piece design with a tidy, understated face that reads as clean rather than flashy - the kind of look that suits a car you drive every day and want to keep looking sharp without shouting. It sits in the wider RTX lineup as one of the brand's more restrained, easy-to-live-with faces.

Sizes and Fitments Stocked

The Cosmos runs in 16, 17 and 18-inch diameters, with widths of 7, 7.5 and 8 inches. Offsets are moderate and street-friendly at +40 and +42, so the wheel tucks neatly under stock fenders. Bolt patterns cover the two most common five-lug compact standards, 5x100 and 5x114.3.

A few concrete examples in stock: the 16x7 +40 in 5x100 Satin Black is the entry size, the 17x7.5 +42 in 5x114.3 Silver is a versatile middle option, and the 18x8 +42 in 5x114.3 Satin Black is the largest and boldest. There's also a 17x7.5 +42 in 5x100 Satin Black for VW and similar platforms.

Finishes

The Cosmos comes in two finishes: Satin Black for a stealthy, low-key look, and Silver for a factory-fresh, OE-style appearance. Both work well across a range of paint colors.

Price and Who It Suits

The Cosmos runs from about $178 to $248 per wheel depending on size and finish, which keeps a full set affordable. It suits drivers of compacts and sedans who want a clean, honest upgrade over steel or worn factory alloys without moving into aggressive-fitment territory. If you want something more distinctive, look at the RTX Spark for a busier face, the Crush for a bolder split-spoke, the Hida for a directional mesh, the Ink for a darker style, or the Trek if you're after a more rugged look.

Financing is available through Affirm, Katapult, Klarna, PayPal Credit and Snap Finance at checkout - see financing options for details.

Ordering

Not sure which spec works on your car? Run the numbers in our fitment calculator or call our team at 813-535-5801. ThreePiece.us is an authorized RTX dealer selling 100% genuine wheels, with free shipping on all orders and 30-day returns on unmounted wheels.

RTX Cosmos: A Clean Monoblock Wheel for Everyday Compacts and Sedans

The RTX Cosmos is a monoblock wheel built for daily-driven compacts, sedans and small crossovers. It's a single-piece design with a tidy, understated face that reads as clean rather than flashy - the kind of look that suits a car you drive every day and want to keep looking sharp without shouting. It sits in the wider RTX lineup as one of the brand's more restrained, easy-to-live-with faces.

Sizes and Fitments Stocked

The Cosmos runs in 16, 17 and 18-inch diameters, with widths of 7, 7.5 and 8 inches. Offsets are moderate and street-friendly at +40 and +42, so the wheel tucks neatly under stock fenders. Bolt patterns cover the two most common five-lug compact standards, 5x100 and 5x114.3.

A few concrete examples in stock: the 16x7 +40 in 5x100 Satin Black is the entry size, the 17x7.5 +42 in 5x114.3 Silver is a versatile middle option, and the 18x8 +42 in 5x114.3 Satin Black is the largest and boldest. There's also a 17x7.5 +42 in 5x100 Satin Black for VW and similar platforms.

Finishes

The Cosmos comes in two finishes: Satin Black for a stealthy, low-key look, and Silver for a factory-fresh, OE-style appearance. Both work well across a range of paint colors.

Price and Who It Suits

The Cosmos runs from about $178 to $248 per wheel depending on size and finish, which keeps a full set affordable. It suits drivers of compacts and sedans who want a clean, honest upgrade over steel or worn factory alloys without moving into aggressive-fitment territory. If you want something more distinctive, look at the RTX Spark for a busier face, the Crush for a bolder split-spoke, the Hida for a directional mesh, the Ink for a darker style, or the Trek if you're after a more rugged look.

Financing is available through Affirm, Katapult, Klarna, PayPal Credit and Snap Finance at checkout - see financing options for details.

Ordering

Not sure which spec works on your car? Run the numbers in our fitment calculator or call our team at 813-535-5801. ThreePiece.us is an authorized RTX dealer selling 100% genuine wheels, with free shipping on all orders and 30-day returns on unmounted wheels.