Enkei - enk3798958038SBC - RPF1 Silver Wheel

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 silver automotive wheel featuring a cast construction and a Formula One-derived twin-spoke design. Its 18-inch diameter, 9.5-inch width, +38 mm offset, 5x100 bolt pattern, and 73 mm hub bore provide the key configuration details for this wheel.

Key Features & Performance Benefits

• Twin-spoke architecture: The dual-spoke layout is designed to distribute side stresses across two spokes and support wheel rigidity.
• MAT flow-forming process: The supplier describes Enkei’s Most Advanced Technology process as supporting a strong strength-to-weight ratio and reduced unsprung mass.
• Spec-E testing standard: The wheel is described as tested to Enkei’s Spec-E standard, including higher impact drop energy and additional rotational fatigue cycles compared with standard JWL guidelines.
• Protective surface treatment: Multi-stage surface treatment is described as helping protect against track heat cycles, road salt corrosion, and brake dust accumulation.

Key Product Specifications & Technical Data

• Brand: Enkei
• Wheel model: RPF1
• Part number: enk3798958038SBC
• Construction: Cast
• Wheel diameter: 18 inches
• Wheel width: 9.5 inches
• Bolt pattern: 5x100
• Offset: +38 mm; hub bore diameter: 73 mm; finish: Silver

What's Included

One Enkei RPF1 wheel.

Fitment

No vehicle-specific fitment data was provided.

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: +38
Bolt Pattern: 5x100
Wheel Diameter: 18.00
Finish: Silver
Wheel Model: RPF1
Wheel Width: 9.50