Are you looking for a strong, lightweight wheel for autocross events? In the past, you would look no further than the Kosei K1 Racing wheel. Designed for track use, the Kosei K1 Racing meets many of the demands of the weekend warrior racer. Whether you are a driver participating in HPDE track days, driving schools or even just autocrossing, the Kosei K1 Racing is both light, durable and an outstanding value for the price. All good things eventually come to an end, and the production of the Kosei K1 Racing wheel is no exception. There are still a few sizes of the K1 Racing still in production, but many sizes have been phased out.
Fortunately, Kosei designed a worthy successor to the popular K1 Racing with the new Kosei K5R. Just like its predecessor, the new K5R is lightweight, attractive and its flow formed construction should be just as durable as the K1 Racing. The new Kosei K5R is available for many popular 15x7, 15x8, 17x7, 17x8 and 17x9 applications, as well as offered in two different finishes.
Kosei K5R Silver Painted
Kosei K5R Light Grey Painted
Both finishes look great, but if you have a race application or a vehicle that tends to put off a lot of brake dust, you may want to lean towards the light grey painted finish, as the color is a bit darker to help hide the brake dust.
While both the K1 Racing and K5R are popular as track wheels, they also make great street wheels for many drivers. In fact, I used the Kosei K1 Racing wheel on my Mazda Miata almost exclusively as a street wheel. You can read about about my experience with the wheel by taking a look at "Kosei K1 Racing Wheels for Mazda Miata."
Just keep in mind that K5R wheels do not come with a cosmetic center cap as they are not needed for racing or fair weather street use. If you'd like a center cap for cosmetic reasons or for all-season driving, an optional center cap is available for most applications.
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