Description

• Key Details

  
  

  Brand: RS Watanabe / Racing Service Watanabe
  Product: 4S Magnesium Wheel
  SKU: mag4s
  Wheel Diameter: 10 inch
  Wheel Type: 4S Magnesium Wheel
  Category: Magnesium Wheels
  Subcategory: 4S Magnesium Wheel
  Construction: Magnesium
  Made In: Japan
  Available Size: 10x4.5 +38
  Available Lug Patterns: 4x100, 4x110, and 4x114.3
  Available Colors: Black, Brownish, Silver Metallic, Gold Metallic, Mug, Glossy Black, and Matte Black
  Included: Valve stems
  Optional: Center caps and lug nuts

  
  

  Common Applications

  The RS Watanabe 4S Magnesium Wheel is commonly used on very compact classic cars, small vintage builds, kei-style projects, and old-school motorsport-inspired vehicles that require a rare 10-inch 4-lug wheel setup. Depending on specification, it may suit selected small Japanese platforms and classic compact vehicles using compatible 4-lug fitments.

  Final fitment depends on wheel width, offset, bolt pattern, hub bore, tire size, suspension setup, brake clearance, ride height, and fender clearance.

  If you are unsure whether this wheel is right for your car, contact us before ordering.

  
  

  Handcrafted Watanabe Character

  RS Watanabe wheels are produced using traditional manufacturing methods and finished by hand in Japan. Because of this process, small surface variations, casting texture, and finish differences may be present from wheel to wheel.

  These details are part of the character that Watanabe owners value. They reflect the old-school manufacturing style that has made Racing Service Watanabe one of the most recognizable names in Japanese wheel history.

  
  

  Custom Options

  Some 4S Magnesium Wheels may be available with custom PCD, offset, hub bore, or color options. If your preferred specification is not listed, select the closest available option and add your requested size, PCD, offset, hub bore, and color in the order notes at checkout.

  Custom PCD, offset, hub bore, and color requests may require additional cost and longer production time. Our team will confirm availability, pricing, and production timing before the order is finalized. Contact us.

  
  

  Shipping and Lead Time

  In-stock items usually ship 2–3 days after order confirmation.
  Out-of-stock magnesium wheels may take 2 to 2.5 years.
  Additional shipping fees may apply depending on destination.
  International delivery timing may vary by country, customs clearance, and carrier.

  
  

  • Note: Shipping price listed on website is only for USA customers. For other country, please contact us individually after placing an order. We will revise the shipping quotation.

  
  

  Important Notes

  Valve stems are included.
  Center caps and lug nuts are sold separately unless otherwise stated.
  This item is currently listed as not available in stock.
  Out-of-stock magnesium wheels may require a much longer production lead time.
  Custom PCD, offset, hub bore, and color requests may require additional cost and lead time.
  Handcrafted magnesium wheels may have small finish, surface, casting, or balancing variations.
  Always confirm final fitment and availability before ordering.

  
  

  FAQ

  Are these authentic RS Watanabe wheels?
  Yes. These are authentic RS Watanabe wheels from Racing Service Watanabe in Japan.

  
  

  Are these aluminum or magnesium wheels?

  These are magnesium wheels. The official product page lists this model under Magnesium Wheels.

  
  

  Are valve stems included?
  Yes. Valve stems are included with the wheels.

  
  

  Are center caps included?
  Center caps are optional and sold separately unless the product page states otherwise.

  
  

  Can I order a custom lug pattern, offset, hub bore, or color?
  Some custom PCD, offset, hub bore, or color requests may be available. Add your requested specs in the order notes or contact us before ordering.

  
  

  How long does shipping take?
  In-stock items usually ship 2–3 days after order confirmation. Out-of-stock magnesium wheels may take 2 to 2.5 years.

  
  

  Will these fit my car?
  Fitment depends on width, offset, PCD, hub bore, tire size, suspension setup, brake clearance, and fender clearance. Contact us before ordering if you are unsure.