Enkei RP03 vs Kosei K4R vs Kosei K1 TS - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

TheLaughingMan · 01-11-2014, 06:37 PM

I've decided after much research to finally go with some 17x8 wheels. I'd prefer that in the end the wheel/tire combo be lighter than stock. I plan on using these as my daily driver/spirited driving/occasional track set, and put snow tires on the stock wheels for winter.

I've also decided on 225/45R17 Dunlop Direzza ZIIs...I think. I am less solid on this one because despite trying to read about the pros/cons of different tire sizes, I still only have a rough understanding at best. I realize that particular tire size is not very different from the stock, but should give more grip and better response? I could go wider...but that would be more weight and I'm not sure I'd really use that extra width.

Finally, onto the wheels... I've come down to three: The Enkei Racing RP03s, Kosei K1 TSes, and the Kosei K4Rs. The Koseis win in terms of being the lightest at 15.5lbs and 15.8lbs respectively. They are also cheaper. The Enkeis are 17.9 lbs which is a little heavier on each corner, but I'm wondering if that also means stronger? Since I'm going to be using these as my daily driver wheels, I'd prefer they not bend at the tiniest bump.

Thoughts? Anyone with experiences with these wheels (or tires for that matter) care to share?

Enkei Racing RP03

Kosei K1 TS

Kosei K4R

chulooz · 01-11-2014, 07:22 PM

fatoni · 01-11-2014, 07:27 PM

the k4r is probably the best in terms of performance and price but i think they are ugly.

swilliams · 01-11-2014, 07:59 PM

I plan on going 17x8, as well, but I'm leaning towards Pilot Super Sports. I have Direzza Z1 Star Specs (which are fairly worn) on my M3 and they are very noisy but grip very well. Unless the ZIIs have improved wet performance over the ZIs, I'm not convinced they are the safest for daily driving.

I think the K4Rs look the best from your options. No experience with any. They don't look too small and I'm a fan of gunmetal/grey on this car. I added them to my shortlist.

TheLaughingMan · 01-11-2014, 11:30 PM

Quote:

Originally Posted by chulooz

added

also I'm less asking about aesthetics and more about safety and performance (although I do appreciate your opinions as well)

Clipdat · 01-11-2014, 11:47 PM

I would go for the Enkei wheels.

SoCal909 · 01-12-2014, 12:19 AM

do you not like RPF1's?

out of those....looks wise, i like the K4Rs actually

chulooz · 01-12-2014, 01:06 AM

The weight and strength (performance and safety) are so close that unless you are a champion racer the differences will not make a difference. Nor will you be able to notice. Thus, the only thing that really matters is which set you prefer to look at. Tires will be your real performance-setting purchase. Good luck.

Apoc · 01-12-2014, 01:20 AM

I have Kosei K4R.

TheLaughingMan · 01-12-2014, 02:04 AM

Quote:

Originally Posted by Apoc

I have Kosei K4R.

what are those wrapped in?

square setup?

TheLaughingMan · 01-12-2014, 02:05 AM

Quote:

Originally Posted by chulooz

The weight and strength (performance and safety) are so close that unless you are a champion racer the differences will not make a difference. Nor will you be able to notice. Thus, the only thing that really matters is which set you prefer to look at. Tires will be your real performance-setting purchase. Good luck.

would the kosei rims bend easier being lighter?

chulooz · 01-12-2014, 02:37 AM

Quote:

Originally Posted by TheLaughingMan

would the kosei rims bend easier being lighter?

No. Not necessarily at least. I believe all 3 are cast wheels thus their relative strength will be similar. Certain mishaps will bend even the finest forged wheels.

Apoc · 01-12-2014, 03:39 AM

Quote:

Originally Posted by TheLaughingMan

what are those wrapped in?

square setup?

235/40/17 Sumitomo HTR Z II all around. They are seriously cheap.

Captain Insano · 01-12-2014, 09:13 AM

I really like the K4Rs look and weight. I've thought about getting them for my winter wheels.

01-12-2014, 01:20 AM	#9
Apoc Senior Member Join Date: Jul 2012 Drives: Raven FR-S 6M Location: Calgary, Canada Posts: 638 Thanks: 348 Thanked 375 Times in 232 Posts Mentioned: 3 Post(s) Tagged: 1 Thread(s)	I have Kosei K4R. Attached Images __________________ “The World is Flat” [\|\|•]=(86)=[•\|\|]

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View Poll Results: Which wheel would best meet my needs in the first post?
Enkei Racing RP03s	11	33.33%
Kosei K1 TSes	3	9.09%
Kosei K4Rs	19	57.58%
Voters: 33. You may not vote on this poll

01-11-2014, 07:22 PM	#2
chulooz Registered you sir Join Date: Feb 2010 Drives: 99 impreza coupe Location: DC / CT Posts: 1,666 Thanks: 259 Thanked 380 Times in 207 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)

01-11-2014, 07:27 PM	#3
fatoni Senior Member Join Date: Apr 2011 Drives: miata, mazdaspeed protege, ls430 Location: socal Posts: 4,416 Thanks: 599 Thanked 1,443 Times in 787 Posts Mentioned: 28 Post(s) Tagged: 0 Thread(s)	the k4r is probably the best in terms of performance and price but i think they are ugly.

01-11-2014, 07:59 PM	#4
swilliams Member Join Date: May 2013 Drives: 13 WRB BRZ Location: Charlotte, NC Posts: 29 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I plan on going 17x8, as well, but I'm leaning towards Pilot Super Sports. I have Direzza Z1 Star Specs (which are fairly worn) on my M3 and they are very noisy but grip very well. Unless the ZIIs have improved wet performance over the ZIs, I'm not convinced they are the safest for daily driving. I think the K4Rs look the best from your options. No experience with any. They don't look too small and I'm a fan of gunmetal/grey on this car. I added them to my shortlist.

01-12-2014, 12:19 AM	#7
SoCal909 Senior Member Join Date: Jan 2013 Drives: 2014 WRB BRZ 6MT Location: IE Posts: 274 Thanks: 162 Thanked 183 Times in 98 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	do you not like RPF1's? out of those....looks wise, i like the K4Rs actually

01-12-2014, 01:06 AM	#8
chulooz Registered you sir Join Date: Feb 2010 Drives: 99 impreza coupe Location: DC / CT Posts: 1,666 Thanks: 259 Thanked 380 Times in 207 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	The weight and strength (performance and safety) are so close that unless you are a champion racer the differences will not make a difference. Nor will you be able to notice. Thus, the only thing that really matters is which set you prefer to look at. Tires will be your real performance-setting purchase. Good luck.

01-12-2014, 09:13 AM	#14
Captain Insano Senior Member Join Date: Sep 2012 Drives: 2014 Jeep Wrangler RubiconX Location: Midwest, USA Posts: 1,282 Thanks: 110 Thanked 292 Times in 224 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	I really like the K4Rs look and weight. I've thought about getting them for my winter wheels.

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