THE SCIENCE OF OFFSET
Understanding scrub radius, clearance, and how offset affects handling characteristics.

The RRT ChyrosX Forged Wheel is a foundational design in the RRT lineup — a wheel developed through continuous refinement of the traditional Y-spoke architecture.
The “X” represents evolution. Iteration after iteration focused on structural optimization, not cosmetic revision.
Where most Y-spoke wheels rely on shallow side cuts or basic ball-end milling to reduce machining cost, the ChyrosX utilizes deep sculpted 5-axis side hollowing. These complex machining strategies allow precise material removal along load-path zones, increasing structural efficiency while reducing unnecessary mass.
This is engineering-driven design.

Machined from high-grade forged aluminum, the ChyrosX benefits from increased material density compared to cast wheels. The result is:
Higher tensile strength
Reduced unsprung weight
Improved steering precision
Greater resistance to deformation under load
The advanced hollowing strategy ensures weight reduction does not compromise spoke rigidity or brake clearance integrity.

While the Ultra and Mono represent the extreme edge of RRT’s engineering spectrum, the ChyrosX occupies a balanced position.
It delivers measurable performance advantages over conventional forged wheels in its segment, without adopting ultra-aggressive weight-saving features that increase production complexity and cost.
In practical terms:
It outperforms most contemporaries in strength-to-weight efficiency at its price level.
This is why it remains the most popular wheel in the RRT range.
Every RRT ChyrosX Forged Wheel is custom manufactured to order, including:
Diameter from 17 to 21 inches
Vehicle-specific PCD
Precise offset (ET)
Brake clearance optimization
Bespoke finish options
Each set is engineered for correct fitment — no compromise, no generic drilling patterns.
| kg | kg | kg | kg | kg | ||||||||||||||
| 17x7 | 6.45 | 18x8 | 7.25 | 19x8 | 7.65 | 20x9 | 8.15 | 21x9.5 | 9.85 | |||||||||
| 17x8 | 6.65 | 18x8.5 | 7.4 | 19x8.5 | 7.85 | 20x9.5 | 8.45 | 21x10 | 10 | |||||||||
| 17x9 | 6.85 | 18x9 | 7.6 | 19x9 | 8 | 20x10 | 8.75 | 21x10.5 | 10.2 | |||||||||
| 18x9.5 | 7.7 | 19x9.5 | 8.15 | 20x10.5 | 9 | 21x11 | 10.45 | |||||||||||
| 18x10 | 7.9 | 19x10 | 8.35 | 20x11 | 9.2 | 21x11.5 | 10.65 | |||||||||||
| 18x10.5 | 8.05 | 19x10.5 | 8.5 | 20x11.5 | 9.4 | 21x12 | 10.95 | |||||||||||
| 18x11 | 8.25 | 19x11 | 8.75 | 20x12 | 9.8 | 21x12.5 | 11.2 | |||||||||||
| 18x11.5 | 8.45 | 19x11.5 | 9.05 | 20/12.5 | 10.1 | |||||||||||||
| 19x12 | 9.35 |
The RRT ChyrosX represents effort.
Attention to detail.
Commitment to doing it correctly, not economically.
It is a forged performance wheel developed for drivers who value structural integrity, mechanical refinement and long-term durability over superficial design trends.
Performance versus cost, properly balanced.
CUSTOM GALLERY
Explore detailed images of this product from every angle.
Every wheel in this series is forged and machined to tolerances that exceed conventional standards.
Aerospace-grade billet aluminum, heat-treated to T6 specification.
Five-axis CNC machining ensures micron-level precision on every surface.
T6 heat treat process maximizes strength-to-weight ratio.
Our forging process aligns grain structure for superior strength at a lower weight.
Up to 30% lighter than cast equivalents, reducing rotational mass.
Forged grain structure yields higher tensile and fatigue strength.
Dynamic balancing to within 5 grams for smooth high-speed rotation.
| Specification | RRT Forged | OEM Cast |
|---|---|---|
| Weight (19x8.5) | 50% Lighter / 15% Lighter JFW | 12.1 kg |
| Tensile Strength | ≥310 MPa | ≤220 MPa |
| Fatigue Life | 1,000,000+ cycles | ~500,000 cycles |
| Porosity | None | Visible micro-voids |
Each fitment is engineered to clear big brake kits and maintain optimal suspension geometry.
Precision-bored center bore matches your vehicle hub for vibration-free fitment.
Designed to clear multi-piston calipers without spacers.
Custom offset engineering for perfect flush fitment with the fender.
Each fitment is load-rated to exceed vehicle manufacturer specifications.
Deep-dive articles on the engineering behind the RRT Forged Weels.
Understanding scrub radius, clearance, and how offset affects handling characteristics.
Finite element analysis behind our signature I-beam spoke reinforcement design.
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