Slight vibration or just really communicative handling/steering?

bones · 04-14-2009, 06:54 AM

Just switched from my winters to Sumi HTR Zs on 17" KM11s. Feeling a slight vibration at speed. I can't tell if it is simply the harder compound of the tires causing me to feel every slight fluctuation in the road or if it is a true vibration.

I can only feel it via the wheel. I can't feel it if I take my hands off the wheel.

I can't remember if my run flats felt like this last summer. I've been on marshmellow snow tires too long.

This normal, or should I get them rebalanced? Bot the tires from tirerack, had them mounted at NTB (which makes me wary).

bones · 04-15-2009, 06:14 AM

thoughts?

rawbert54 · 04-15-2009, 07:16 AM

vibration at certain speeds but not others usually means they were not balanced properly, especially if they are not new tires. It may have thrown a balance wieight

crex · 04-15-2009, 07:17 AM

Quote:

Originally Posted by bones

thoughts?

I would get them high speed balanced for peace of mind.

jeremyc74 · 04-15-2009, 07:35 PM

Probably balancing. I've got the same thing going on right now. I think a wheel weight has come off because it started pretty suddenly.

warmtoes · 04-15-2009, 07:43 PM

Yeah, sounds like a slight balance issue. If the problem persists after a balance see if you can find a tire shop with a Hunter RoadForce balancing machine as it tends to provide the best balancing by appying pressure to the tire as if it was rolling while doing the balancing.

bones · 04-15-2009, 08:02 PM

Dropping her off tomorrow to get worked over by a Hunter GSP9700.

Addict...Nah Im A Junkie! · 04-15-2009, 08:07 PM

Let us know what happens. I have a pair of KM11's with dunlop winter sports that I've balanced three times at three separate places within 3 months and they still have the jiggles. I'm pretty pissed at this point.

warmtoes · 04-16-2009, 02:34 AM

I've had the TireRack Sport Edition wheels previously for my winter set (similar to the Sport Edition Glide with Dunlop M3's) and could not get them balanced properly on normal balancing machines. I had to finally find a place with a Hunter RoadForce balancing machine to balance them and even then they still had a slight wobble but nothing like it was before when it was balanced on a regular machine where it felt like the wheel was going to come off.

When you pay as little as you do for the Sport Editions you get what you pay for.

bones · 04-16-2009, 07:48 PM

My guy had to use a shitload of weight on two of the wheels -- double stacking it in one place. Can't complain about the ride though.

He said that his Hunter came pre-loaded with some weight saving software that actually produced a worse ride than the car came in with in some instances. Once he bagged that and got some new software (that apparently doesn't spare the weight!) he became a meastro with the machine.

04-14-2009, 06:54 AM	#1
bones Private First Class 123 Rep 180 Posts Drives: 2020 M340 RWD Join Date: Sep 2008 Location: Boston iTrader: (0)	Slight vibration or just really communicative handling/steering? Just switched from my winters to Sumi HTR Zs on 17" KM11s. Feeling a slight vibration at speed. I can't tell if it is simply the harder compound of the tires causing me to feel every slight fluctuation in the road or if it is a true vibration. I can only feel it via the wheel. I can't feel it if I take my hands off the wheel. I can't remember if my run flats felt like this last summer. I've been on marshmellow snow tires too long. This normal, or should I get them rebalanced? Bot the tires from tirerack, had them mounted at NTB (which makes me wary).
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04-15-2009, 06:14 AM	#2
bones Private First Class 123 Rep 180 Posts Drives: 2020 M340 RWD Join Date: Sep 2008 Location: Boston iTrader: (0)	thoughts?
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04-15-2009, 07:16 AM	#3
rawbert54 Private First Class 6 Rep 129 Posts Drives: sedona Reda 128i Join Date: Dec 2008 Location: fort lauderdale iTrader: (0)	vibration at certain speeds but not others usually means they were not balanced properly, especially if they are not new tires. It may have thrown a balance wieight
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04-15-2009, 07:35 PM	#5
jeremyc74 Banned 76 Rep 5,970 Posts Drives: '08 135i Montego/Terra Join Date: Feb 2008 Location: Evansville, IN iTrader: (0)	Probably balancing. I've got the same thing going on right now. I think a wheel weight has come off because it started pretty suddenly.
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04-15-2009, 07:43 PM	#6
warmtoes Lieutenant Colonel 31 Rep 1,917 Posts Drives: EBII 435i xDrive Join Date: Apr 2008 Location: Vancouver iTrader: (1)	Yeah, sounds like a slight balance issue. If the problem persists after a balance see if you can find a tire shop with a Hunter RoadForce balancing machine as it tends to provide the best balancing by appying pressure to the tire as if it was rolling while doing the balancing. __________________ *2014 EBII 435i xDrive M-sport* Gone: 2011 TiAg F25 X3 xDrive35i M-sport Gone: 2008 TiAg w/Coral Red E88 135i Cab M-sport
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04-15-2009, 08:02 PM	#7
bones Private First Class 123 Rep 180 Posts Drives: 2020 M340 RWD Join Date: Sep 2008 Location: Boston iTrader: (0)	Thanks guys Dropping her off tomorrow to get worked over by a Hunter GSP9700.
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04-15-2009, 08:07 PM	#8
Addict...Nah Im A Junkie! Captain 34 Rep 786 Posts Drives: 09 135i, 98 M rdstr Join Date: Sep 2008 Location: NY iTrader: (0)	Let us know what happens. I have a pair of KM11's with dunlop winter sports that I've balanced three times at three separate places within 3 months and they still have the jiggles. I'm pretty pissed at this point. __________________ '09 135i 6MT : Space Grey/Black ette : Cold Weather Package : Sport Package : Glacier Silver Aluminum Trim : iPod and USB : Nav : HD radio : Premium hi-fi system
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04-16-2009, 02:34 AM	#9
warmtoes Lieutenant Colonel 31 Rep 1,917 Posts Drives: EBII 435i xDrive Join Date: Apr 2008 Location: Vancouver iTrader: (1)	I've had the TireRack Sport Edition wheels previously for my winter set (similar to the Sport Edition Glide with Dunlop M3's) and could not get them balanced properly on normal balancing machines. I had to finally find a place with a Hunter RoadForce balancing machine to balance them and even then they still had a slight wobble but nothing like it was before when it was balanced on a regular machine where it felt like the wheel was going to come off. When you pay as little as you do for the Sport Editions you get what you pay for. __________________ *2014 EBII 435i xDrive M-sport* Gone: 2011 TiAg F25 X3 xDrive35i M-sport Gone: 2008 TiAg w/Coral Red E88 135i Cab M-sport
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04-16-2009, 07:48 PM	#10
bones Private First Class 123 Rep 180 Posts Drives: 2020 M340 RWD Join Date: Sep 2008 Location: Boston iTrader: (0)	So far, so good. My guy had to use a shitload of weight on two of the wheels -- double stacking it in one place. Can't complain about the ride though. He said that his Hunter came pre-loaded with some weight saving software that actually produced a worse ride than the car came in with in some instances. Once he bagged that and got some new software (that apparently doesn't spare the weight!) he became a meastro with the machine.
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