RRT XTREMIST MONO
Alloy Rim Wheels Engineered From Proven Extremes -RRT Xtremist Mono
The RRT Xtremist Mono alloy rim wheels builds on the legacy of the Xtremist and the Xtremist V2, carrying forward a design philosophy rooted in structural efficiency and real-world performance.
As Isaac Newton once said:
“If I have seen further, it is by standing on the shoulders of giants.”
The Xtremist Mono evolve directly from the highly successful Xtremist V2. The objective was not reinvention, but refinement. The result is a forged wheel that is smoother in behavior, more efficient in mass distribution, and more composed under load. It stands as a deliberate counterpart to the Ultra series, offering extreme performance with a different balance of character.
Design Intent & Positioning
The Xtremist Mono is heavy on engineering features and light on compromise.
It is designed for builds that demand high performance without crossing into uncompromising minimalism. Where the Ultra is relentless, the Xtremist Mono alloy rim wheels introduce refinement while preserving structural aggression.
This positions the wheel for enthusiasts who want extreme capability paired with visual and mechanical sophistication. Whether paired with modern BMW wheels setups, performance-focused Tesla wheels, or high-power street builds, the intent remains the same: performance first, always.

Engineering Architecture & Structural Features
The Xtremist Mono integrates a dense set of performance-driven engineering solutions found only in high-end forged wheels and motorsport-grade rims:
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Thin wall profile optimisation
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Rear pocketing for mass reduction
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Side hole through-spoke machining
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Hollowed-out safety hump ledge
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Large polar moment of cross-section spoke design
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Webbed spoke-to-barrel connection
Each feature contributes directly to stiffness control, weight efficiency, and load distribution. Nothing is decorative. Every cut, pocket, and interface serves a structural purpose. This is the same engineering mindset seen in apex wheels–level competition products, but executed with RRT’s own structural logic.
The Xtremist Mono is a tour de force of engineering excellence in alloy rim wheels.
Available Colors and Finishes
Actual colors may vary due to current lightings.
Performance With Presence
This is an alloy rim wheel that not only performs at the highest level, but also embraces the ethos of intelligent complexity and purposeful form.
The Xtremist Mono attracts attention without relying on exaggerated styling or cosmetic tricks often seen in aftermarket rims. Its visual presence is a direct result of how it is engineered, not an overlay applied after the fact. Whether paired with 17 inch rims for lightweight performance or 20 inch rims for high-output applications, the design integrity remains consistent.
Weight Description of RRT- Xtremist Mono
| kg | kg | kg | kg | kg | |||||||||
| 17x7 | 5.8 | 18x8 | 6.6 | 19x8 | 7 | 20x9 | 7.5 | 21x10 | 9.35 | ||||
| 17x8 | 6 | 18x8.5 | 6.75 | 19x8.5 | 7.2 | 20x9.5 | 7.8 | 21x10.5 | 9.55 | ||||
| 17x9 | 6.2 | 18x9 | 6.95 | 19x9 | 7.35 | 20x10 | 8.1 | 21x11 | 9.8 | ||||
| 18x9.5 | 7.05 | 19x9.5 | 7.5 | 20x10.5 | 8.35 | 21x11.5 | 10 | ||||||
| 18x10 | 7.25 | 19x10 | 7.7 | 20x11 | 8.55 | ||||||||
| 18x10.5 | 7.4 | 19x10.5 | 7.85 | 20x11.5 | 8.75 | ||||||||
| 18x11 | 7.6 | 19x11 | 8.1 | 20x12 | 9.15 | ||||||||
| 18x11.5 | 7.8 | 19x11.5 | 8.4 | ||||||||||
| 19x12 | 8.7 |
Built for Extreme Builds
If you are assembling a high-extreme build that demands credibility beyond styling, the Xtremist Mono alloy rim wheels are engineered to match that intent.
They are designed to work as a complete system with performance rims and tires, maintaining stiffness under load while delivering precise steering feedback. This makes them suitable for applications ranging from aggressive street builds to track-focused setups, including those that traditionally look toward beadlock wheels for strength.
The Xtremist Mono is built for drivers who demand performance credibility, structural integrity, and design intent in equal measure.
BUILT BEYOND SPEC
Every wheel in this series is forged and machined to tolerances that exceed conventional standards.
FORGED 6061-T6
Aerospace-grade billet aluminum, heat-treated to T6 specification.
CNC MACHINED
Five-axis CNC machining ensures micron-level precision on every surface.
HEAT TREATED
T6 heat treat process maximizes strength-to-weight ratio.
FORGED VS. CAST
Our forging process aligns grain structure for superior strength at a lower weight.
LIGHTWEIGHT
Up to 30% lighter than cast equivalents, reducing rotational mass.
STRENGTH
Forged grain structure yields higher tensile and fatigue strength.
BALANCE
Dynamic balancing to within 5 grams for smooth high-speed rotation.
| Specification | RRT Forged | OEM Cast |
|---|---|---|
| Weight (19x8.5) | 8.9 kg | 12.4 kg |
| Tensile Strength | ≥310 MPa | ≤220 MPa |
| Fatigue Life | 1,000,000+ cycles | ~500,000 cycles |
| Porosity | None | Visible micro-voids |
DESIGNED FOR YOUR CHASSIS
Each fitment is engineered to clear big brake kits and maintain optimal suspension geometry.
HUB CENTRIC
Precision-bored center bore matches your vehicle hub for vibration-free fitment.
BIG BRAKE CLEARANCE
Designed to clear multi-piston calipers without spacers.
OPTIMAL OFFSET
Custom offset engineering for perfect flush fitment with the fender.
LOAD RATED
Each fitment is load-rated to exceed vehicle manufacturer specifications.