Enkei - enk3798806535SP - RPF1 18x8 Silver Wheel, 5x114.3, +35 Offset, 73mm Bore

Enkei RPF1 wheels represent an iconic benchmark in modern motorsport, combining Formula One-derived twin-spoke architecture with ultra-lightweight performance for track cars, sport compacts, and sports sedans. Originally developed in collaboration with the McLaren Honda F1 team, the RPF1 utilizes Enkei’s MAT (Most Advanced Technology) flow-forming process to yield an exceptional strength-to-weight ratio, dramatically reducing unsprung mass for blistering acceleration, razor-sharp turn-in, and precise suspension articulation.

• Dual-spoke distribution spreads side stresses across two spokes to increase wheel rigidity under heavy lateral g-forces while optimizing brake caliper clearance
• Built to Enkei’s Spec-E testing standard, demanding higher impact drop energy and 20% more rotational fatigue cycles than standard JWL guidelines
• Multi-stage protective surface treatment shields against extreme track heat cycles, road salt corrosion, and brake dust accumulation
• Precision-machined center bore accepts hub-centric centering rings to eliminate high-speed chassis vibration and wheel stud fatigue
• Pocket milling around the bolt circle relieves extraneous weight from the center hub area without compromising structural integrity

The Enkei RPF1 is a performance-oriented wheel featuring a Formula One-derived twin-spoke design and Enkei’s MAT (Most Advanced Technology) flow-forming process. Its lightweight construction is intended to help reduce unsprung mass for responsive acceleration, quick turn-in, and precise suspension articulation on track cars, sport compacts, and sports sedans.

Key Features & Performance Benefits

• Twin-spoke architecture: Dual-spoke distribution helps spread side stresses across the spokes to support rigidity under lateral loads.
• MAT manufacturing process: Enkei’s flow-forming technology delivers a strength-to-weight-focused wheel construction.
• Spec-E testing standard: Tested to Enkei’s stated standard with higher impact drop energy and 20% more rotational fatigue cycles than standard JWL guidelines.
• Protective surface treatment: Multi-stage treatment is designed to help protect against track heat cycles, road salt corrosion, and brake dust accumulation.

Key Product Specifications & Technical Data

• Brand: Enkei
• Wheel model: RPF1
• Construction: Cast
• Wheel diameter: 18 inches
• Wheel width: 8 inches
• Bolt pattern: 5x114.3
• Offset: +35 mm
• Hub bore diameter: 73 mm

What’s Included

One Enkei RPF1 silver wheel.

Fitment

Fitment data provided for RX8 and 1993–1998 Supra applications. Confirm vehicle-specific clearance and fitment requirements before installation.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Construction: Cast
Hub Bore Diameter: 73.00
Offset: +35
Bolt Pattern: 5x114.3
Wheel Diameter: 18.00
Finish: Silver
Wheel Model: RPF1
Wheel Width: 8.00