How much more uncomfortable can it get...

belcom · 02-26-2015, 07:53 PM

with the stock Xi suspension and RFT tires. Was just driving home for an hour and every little thing on road I felt in my gut. I could hear my lunch floating around as well. Wow! Add some instability to that.

Feels like the car wants to grow wings and fly away sometimes as well. BMW should be ashamed for ruining a nice car like that.

Rant over...

altostratus · 02-26-2015, 11:01 PM

Get rid of the RFT's.

MTTH · 02-26-2015, 11:20 PM

Get rid of the RFTs. Although idk if I need an alignment or if my suspension is terrible. Been feeling a lot of instability.

belcom · 02-27-2015, 09:02 AM

I got these continental winter RFTs with the car brand new when I bought it. Guess I am stuck with them for now. I will try to sell them before next winter and get some blizzaks. But either way, I can't wait to put the KWs on. Soon...

zipstic · 02-27-2015, 01:56 PM

What did you have for lunch?!?!

Yeah, the stock suspension isn't very good, especially when you have run-flats on.

belcom · 02-28-2015, 08:49 AM

Quote:

Originally Posted by zipstic

What did you have for lunch?!?!

Yeah, the stock suspension isn't very good, especially when you have run-flats on.

Some very tasty Pho soup hahaha

chillbil79 · 02-28-2015, 02:33 PM

Ditched rft and bought eibach springs n koni's. Problem solved.

CoralRed335XI · 03-01-2015, 08:46 AM

I'm still running my OEM RFTs on my KWV1s. I was pleasantly surprised by the ride. Some say it would be harsher than stock. I beg to differ.

danniexi · 03-01-2015, 09:24 AM

it's definitely the RFTs, not the suspension.

ive been through a few setups. i find the KW V1s to be extremely harsh in terms of ride comfort, but the stock suspension + RFTs were worse.

get regular tires and get new bump stops to allow for more travel with OEM suspension (gets ride of crashing effect).

belcom · 03-01-2015, 10:53 AM

Firm and harsh are two very different things. I have KWs coming, already have brand new 19" CSL style wheels that will wrapped in Michelin PSS. I know 19s are not optimal but I am going to try it anyway since I got them already.

I had a nice setup before on my previous car and it was firm however way better than original stock suspension which was "soft" but at the same time quite harsh. On stock suspension when you hit a larger dip the car just seems to float, roll and becomes unstable especially at speed and all the small imperfections were going through the seat and I felt it every time. Bimmer although better stock for the exception of RFTs however still needs much improvement. I am expecting similar results from this upgrade.

Edit:

I was expecting these to arrive in a week or two but fedex guy showed up today...

oneha1980 · 03-02-2015, 07:44 PM

Quote:

Originally Posted by belcom

Firm and harsh are two very different things. I have KWs coming, already have brand new 19" CSL style wheels that will wrapped in Michelin PSS. I know 19s are not optimal but I am going to try it anyway since I got them already.

I had a nice setup before on my previous car and it was firm however way better than original stock suspension which was "soft" but at the same time quite harsh. On stock suspension when you hit a larger dip the car just seems to float, roll and becomes unstable especially at speed and all the small imperfections were going through the seat and I felt it every time. Bimmer although better stock for the exception of RFTs however still needs much improvement. I am expecting similar results from this upgrade.

Edit:

I was expecting these to arrive in a week or two but fedex guy showed up today...

enjoy your coilovers! the car rides soooo much better with them on.. the best mod i've done to my car..

i have the stock 17's with RFTs and they were/are just ok.. it doesn't really bother me too much.. id rather have my car a little harsh/firm for better handling for sure.. i have 19" 313's with non RFTs that i will be using once the weather gets nice so we'll see how much it improves or not.

belcom · 04-08-2015, 05:34 PM

I got my 19s put on with Michelin PSS 235 front and 265 rear. Already quite an improvement. My wheels are pretty light as well. About 20lbs front and 22lbs rear. KWs are still in the box... just waiting for the damn dealer to finish some warranty work first (takes forever!).

19s are not as bad as I thought they would be. Quite comfy actually. Added quite a bit of stability to the ride too. Cornering is way better over stock 17 RFTs. Car stays flatter.

1QuikWS6 · 04-08-2015, 07:31 PM

Quote:

How much more uncomfortable can it get...

In answer to your question - only thing worse then RFT's are the stone wheels on Fred Flintstone car

You need to be getting rid of those & pick up a set of good tires - if you also want wheels & your area has really crappy roads, I would not suggest going any bigger than 18" wheels so as to not risk bending them...

18" wheels with regular tires still ride way better than RFT's on 17" wheels

Nismo G · 04-12-2015, 01:04 PM

haha I feel your pain. I have the OEM bridgestone RFT with stock suspension here in Boston. Sometimes i think my engine is going to just fall out the bottom....

denraf · 04-12-2015, 08:39 PM

I installed KWv3 today, still with RFT, but it feels like another car already.

MrHerboto · 04-12-2015, 11:57 PM

Ditch the RFT's, I swapped out the OEM Bridgestone EL42'S after three months and put on the Michelin A/S 3's; the difference was night and day. Rather than every minute road imperfection feeling like impending doom, they are far more subdued. You'll notice an appreciable difference in both ride quality and handling, I am sure a comparable Continental like the DWS or even the DW would yield a similar outcome.

02-26-2015, 07:53 PM	#1
belcom Lieutenant 179 Rep 429 Posts Drives: '18 540i, '06 Z4si, '07 Z4MC Join Date: Nov 2014 Location: Toronto iTrader: (1)	How much more uncomfortable can it get... with the stock Xi suspension and RFT tires. Was just driving home for an hour and every little thing on road I felt in my gut. I could hear my lunch floating around as well. Wow! Add some instability to that. Feels like the car wants to grow wings and fly away sometimes as well. BMW should be ashamed for ruining a nice car like that. Rant over...
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02-26-2015, 11:01 PM	#2
altostratus Private First Class 9 Rep 106 Posts Drives: 09 335xi sedan Join Date: Aug 2014 Location: Toronto iTrader: (0)	Get rid of the RFT's.
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02-26-2015, 11:20 PM	#3
MTTH Captain 233 Rep 738 Posts Drives: '11 328xi \|'18 440xi GranCoupe Join Date: Sep 2014 Location: Staten Island, NYC iTrader: (0) Garage List [0.00]	Get rid of the RFTs. Although idk if I need an alignment or if my suspension is terrible. Been feeling a lot of instability. __________________ https://www.instagram.com/mtth.f36/
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02-27-2015, 09:02 AM	#4
belcom Lieutenant 179 Rep 429 Posts Drives: '18 540i, '06 Z4si, '07 Z4MC Join Date: Nov 2014 Location: Toronto iTrader: (1)	I got these continental winter RFTs with the car brand new when I bought it. Guess I am stuck with them for now. I will try to sell them before next winter and get some blizzaks. But either way, I can't wait to put the KWs on. Soon...
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02-27-2015, 01:56 PM	#5
zipstic Major 484 Rep 1,188 Posts Drives: 2008 e92 335xi Join Date: Sep 2011 Location: Minneapolis iTrader: (1) Garage List 2008 335xi Coupe [10.00]	What did you have for lunch?!?! Yeah, the stock suspension isn't very good, especially when you have run-flats on. __________________ http://www.ishopwheels.com
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02-28-2015, 02:33 PM	#7
chillbil79 First Lieutenant 44 Rep 307 Posts Drives: 08 335xi Sedan Join Date: Jul 2012 Location: Delaware iTrader: (1)	Ditched rft and bought eibach springs n koni's. Problem solved.
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03-01-2015, 08:46 AM	#8
CoralRed335XI Captain 98 Rep 646 Posts Drives: 2008 E92 335XI Coupe Join Date: Aug 2011 Location: NJ,VA iTrader: (4) Garage List 2008 BMW 335XI [3.66]	I'm still running my OEM RFTs on my KWV1s. I was pleasantly surprised by the ride. Some say it would be harsher than stock. I beg to differ. __________________ 2008 E92 335XI, Space Gray on Coral/Fox Red Hybrid M3 seats, Premium, Cold Weather, Comfort Access, iPod. Mods: Fox Red M3 seats up front, KW V1, ER CP + TIAL BOV.
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03-01-2015, 09:24 AM	#9
danniexi Brigadier General 3071 Rep 4,393 Posts Drives: 2022 F97 X3M Comp LCI Join Date: May 2008 Location: NJ/NY iTrader: (15) Garage List 2022 BMW X3M Compet ... [10.00] 2016 BMW F80 M3 [10.00]	it's definitely the RFTs, not the suspension. ive been through a few setups. i find the KW V1s to be extremely harsh in terms of ride comfort, but the stock suspension + RFTs were worse. get regular tires and get new bump stops to allow for more travel with OEM suspension (gets ride of crashing effect). __________________ BMW MY22 F97 X3MC LCI - CURRENT BUILD THREAD\| Instagram: @danniexi BMW MY16 F80 M3 - GONE BMW MY08 E92 335XI - GONE BMW MY06 E46 325XI - GONE
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03-01-2015, 10:53 AM	#10
belcom Lieutenant 179 Rep 429 Posts Drives: '18 540i, '06 Z4si, '07 Z4MC Join Date: Nov 2014 Location: Toronto iTrader: (1)	Firm and harsh are two very different things. I have KWs coming, already have brand new 19" CSL style wheels that will wrapped in Michelin PSS. I know 19s are not optimal but I am going to try it anyway since I got them already. I had a nice setup before on my previous car and it was firm however way better than original stock suspension which was "soft" but at the same time quite harsh. On stock suspension when you hit a larger dip the car just seems to float, roll and becomes unstable especially at speed and all the small imperfections were going through the seat and I felt it every time. Bimmer although better stock for the exception of RFTs however still needs much improvement. I am expecting similar results from this upgrade. Edit: I was expecting these to arrive in a week or two but fedex guy showed up today... Last edited by belcom; 03-02-2015 at 03:03 PM..
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04-08-2015, 05:34 PM	#12
belcom Lieutenant 179 Rep 429 Posts Drives: '18 540i, '06 Z4si, '07 Z4MC Join Date: Nov 2014 Location: Toronto iTrader: (1)	I got my 19s put on with Michelin PSS 235 front and 265 rear. Already quite an improvement. My wheels are pretty light as well. About 20lbs front and 22lbs rear. KWs are still in the box... just waiting for the damn dealer to finish some warranty work first (takes forever!). 19s are not as bad as I thought they would be. Quite comfy actually. Added quite a bit of stability to the ride too. Cornering is way better over stock 17 RFTs. Car stays flatter.
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04-12-2015, 01:04 PM	#14
Nismo G Second Lieutenant 50 Rep 243 Posts Drives: 2008 335xi Sedan Join Date: Jul 2014 Location: Sarasota, FL iTrader: (1)	haha I feel your pain. I have the OEM bridgestone RFT with stock suspension here in Boston. Sometimes i think my engine is going to just fall out the bottom.... __________________ Current: 08 335xi Sedan - ST Suspension Coilovers - M3 Front Strut Brace - COBB Stage 1 - ECS Tuning Chargepipe + BOV - aFe Stage 2 Intake - Precision Raceworks Ignition Coils
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04-12-2015, 08:39 PM	#15
denraf Private 9 Rep 61 Posts Drives: 2010 335i E92 M xDrive Join Date: Jul 2014 Location: GA iTrader: (2)	I installed KWv3 today, still with RFT, but it feels like another car already.
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04-12-2015, 11:57 PM	#16
MrHerboto New Member 2 Rep 6 Posts Drives: 2007 BMW 328xit Join Date: Apr 2015 Location: Longview, WA iTrader: (0)	Ditch the RFT's, I swapped out the OEM Bridgestone EL42'S after three months and put on the Michelin A/S 3's; the difference was night and day. Rather than every minute road imperfection feeling like impending doom, they are far more subdued. You'll notice an appreciable difference in both ride quality and handling, I am sure a comparable Continental like the DWS or even the DW would yield a similar outcome.
	Appreciate 0 Quote