08-14-2016, 02:08 AM | #2 |
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What's the weight of the 666's?
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08-14-2016, 02:12 AM | #3 |
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25lbs front, 26.5lbs rear, according to IND
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08-14-2016, 02:17 AM | #4 |
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08-14-2016, 03:26 PM | #5 |
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The GTS wheels are not the same as the CP wheels. GTS has 19in front, 20in rear.
Maybe they're lighter too?
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08-16-2016, 05:03 AM | #8 | |
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"As standard, forged 19” M light-alloy wheels are used at the front and 20” M light-alloy wheels at the rear in 666M styling." I guess this is why they offer the carbon wheels as a way to reduce weight |
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08-16-2016, 09:28 AM | #9 |
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A few data points on dimensions and weights:
When you consider that the front GTS wheel is 0.5 wider than the 437M, the 1.1lb weight penalty is not that bad. Maybe they made the 666M very sturdy. But I still find the 666M wheels quite heavy compared to the 437M though. I had much higher expectation when BMW advertised the 666M to be "weight optimized" .
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08-17-2016, 02:05 AM | #10 |
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Totally agree. Don't know why BMW didn't opt for the sort of lightweight wheels Porsche fit on their GT3/GT3 RS.
BBS FI-R weigh in at 16.5lbs front, 18.5lbs rear with M4 GTS spec. Weight-saving for all 4 wheels is 34.8lbs (15.8kg)!!! http://f80.bimmerpost.com/forums/sho....php?t=1155359 |
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08-17-2016, 09:11 AM | #11 |
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GTS should have came from the factory with BBS FI-R's
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08-17-2016, 12:06 PM | #12 |
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You guys are forgetting about the carbon wheels
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08-17-2016, 12:16 PM | #14 |
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Even the 681M Carbon composite wheels are quire heavy compared the BBS FI-R:
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08-17-2016, 12:23 PM | #15 |
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The weight you quoted seem to be for CP 666M (they are very close to the ETK quoted weights). It is important to note that beyond the fact that the front GTS wheel is a 19", the GTS front and rear wheels are also 0.5" wider than the CP, which increases their weight.
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08-25-2016, 01:35 AM | #16 | |
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2015 AB/SO F80 M3 6MT | 19" Black M437 | KW H.A.S. | AutoTechnik Black Front Grills | BMW Performance Side Grills | Painted Front Bumper Reflectors | Gloss Black Exhaust Tips
GONE 2011 SG/Blk E92 M3 CS 6MT |
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08-25-2016, 10:59 AM | #17 |
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Didn't the GTS do the 2nd fastest time around the Nurburgring on these wheels?
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08-25-2016, 11:05 AM | #18 | |
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Quote:
The point is that the weight of the 666M wheels is not a big contributor to the M4 GTS' good performance.
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08-25-2016, 11:40 AM | #19 |
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Tbh, i just switched my 666m to the 437m wheels and i don't know for some reason my car felt slower. i don't know if it was the tires or whatever reason, maybe psychological, but i felt like my car doesn't feel the same. lol. maybe i'm just getting used to the 19s.
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08-25-2016, 12:03 PM | #20 | |
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08-27-2016, 04:08 AM | #21 |
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I think they wanted a really stiff and sturdy wheel seeing probable track use?
Porsche 991 gt3 wheels are also 24-28 lb front-rear... |
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11-14-2016, 12:25 AM | #22 | |
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The 666m's probably felt faster to you because it took you longer to slow down..
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