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Wheels and Tires› Wheels

Kosei

K1 Racing 15x7.0 +38 4x100 Silver Wheel

$210.00 $179.95 Save $30.05

SKU: 1570384100K1RV2

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Kosei K1 Racing is a 15x7.0 wheel with a 4x100 bolt pattern and a +38 offset, finished in silver paint. It features a 73mm center bore and is constructed using 1-piece low-pressure casting. The wheel weighs approximately 13.15 lbs.

This wheel is sold individually but must be ordered in sets of four. Center caps are not available for this model.
Show original supplier description
The Kosei K1 Racing wheel is a 15x7.0 size, 1-piece low-pressure cast wheel designed for performance and style. It features a popular 4x100 bolt pattern with a +38 offset and a 73mm center bore. This silver painted wheel weighs in at approximately 13.15 lbs, making it a lightweight option for enthusiasts.
Vehicle Symptoms
  • Worn or damaged stock wheels
  • Poor handling in corners
  • Excessive unsprung weight affecting acceleration
  • Desire for lighter wheels for track days
  • Upgrading to a more aggressive wheel style
Relevant Conversations
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  • Kosei K1 Racing 15x7 +38 offset review
  • best wheels for NA Miata track use
  • 15x7 +38 fitment on 1990 Miata
  • Kosei K1 vs RPF1 comparison
  • are Kosei K1 wheels good for daily driving
  • 15 inch wheels with 4x100 bolt pattern for Civic
  • where to buy Kosei K1 Racing wheels
  • lightweight wheels for improved fuel economy
  • Kosei K1 Racing weight 13 lbs

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKosei
Part Number1570384100K1RV2
CategoryWheels and Tires
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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