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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Kosei K3



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      09-01-2007, 05:42 PM   #1
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Kosei K3

Can anyone comment on these as dedicated track wheels? They're 20.4 lbs so not the lightest but I want 18x8.5" wheels with 245s all around and don't want to pony up for the SSR Comps. Tirerack is closing them out at $229 each. Any thoughts?
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      09-03-2007, 11:43 PM   #2
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It's a good choice. Search for the track wheel thread. It has most of the options listed including this wheel. I like the K3 and the price is right. I have the NT03+M's in 18x8.5 at all four corners with 245 40 18 NT-01's and they fit great with lots of room to spare at the fenders. The Kosei's have a more agressive offset for the front fitment, but should work with 245's. I don't know about 255's though.
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      09-04-2007, 08:45 AM   #3
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Quote:
Originally Posted by reb03 View Post
Can anyone comment on these as dedicated track wheels? They're 20.4 lbs so not the lightest but I want 18x8.5" wheels with 245s all around and don't want to pony up for the SSR Comps. Tirerack is closing them out at $229 each. Any thoughts?
Why not get the 17x8.5 K1's for $165? On the track, the extra inch in wheel diameter is only making your tires more expensive. Function over form. My K1's just came in. At 16.8 lbs / wheel, you can't beat them.
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      09-04-2007, 10:48 AM   #4
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Quote:
Originally Posted by ToddPhilly View Post
Why not get the 17x8.5 K1's for $165? On the track, the extra inch in wheel diameter is only making your tires more expensive. Function over form. My K1's just came in. At 16.8 lbs / wheel, you can't beat them.
Thanks for the input guys. Toddphilly - I considered the K1 first but I want to run the Toyo 888 because of the stiffer sidewalls that seem to hold up well at tracks like Willow Springs (kills left front). The only 17" size is a 235 and I want to run a little more contact patch than that.
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      09-04-2007, 12:36 PM   #5
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I can't remember, did someone fit a K1 or K3 in 17" on the 335i and clear the larger brakes?
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      09-04-2007, 12:46 PM   #6
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with me potentially going up to 365mm rotors..the 17s are NOT an option.
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      09-04-2007, 12:56 PM   #7
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I can't remember, did someone fit a K1 or K3 in 17" on the 335i and clear the larger brakes?
K1's will fit over the brakes on a 335i coupe.
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      09-04-2007, 12:58 PM   #8
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Quote:
Originally Posted by reb03 View Post
Thanks for the input guys. Toddphilly - I considered the K1 first but I want to run the Toyo 888 because of the stiffer sidewalls that seem to hold up well at tracks like Willow Springs (kills left front). The only 17" size is a 235 and I want to run a little more contact patch than that.
Fair enough. In that case, I'm sure you will be happy with the K3's. Kosei makes a pretty damn good wheel for the $. I can't speak for longevity of my K1's, but I've heard they are as durable (hopefully better) than the SSR's. Good luck & have fun!
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