How's it going guys I have an interesting issue with my F30. recently I upgraded my tires to be a little wider the original size was 225/50r17 and now I have 245/40/17 all brand new tires. Every time I drive the car I can feel my car going over every part of the road like small pebbles, smooth patches, and to be honest every single piece of the road its getting very irritating. I can't tell if it's a bad suspension or because I got new tires that are a little bigger but that wouldn't make sense to me. Can anyone tell me what needs replacing any help would be appreciated as always thanks in advance!
You went to a lower profile tire (50 to 40) so you now have less tire to absorb road imperfections. The benefits of a lower profile tire are that steering is more sharp as there is less tire roll in turns, but the negative is that the ride is usually a bit harsher, which is what I think you are feeling now.
+1
A 245 45 R17 would have been a better fit, for that is only .2 inch small in diameter, while those tires you bought are a full inch smaller, that a bit of sidewall you are missing.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
One thing you might try is to lower your tire pressures. I can definitely feel the difference between, say 40 psi and 33.
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