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20 inch Uberturbine wheels on Model Y + optional thicker 45 profile sidewall.

avs007

Member
May 14, 2021
167
117
PacNW
I tried 245/45/20 and took them off after one day. The car bounces too much and lost road feel. Especially with acceleration boost option the LRY wants to run fast and hard. I now put 255/40/20 Pilot Sport 4S on and it’s like a new car with instant torque and unreal grip.
Which tires did you try in 255/45-20?
 

smithrukami

Member
May 8, 2019
92
5
irvine
Which tires did you try in 255/45-20?
Sumitomo. Maybe that’s partly why. I did notice great grip and feel with M3P stock 235/35/20 but they look terrible in wheel well. Now I have pilot sport 4S in 255/40/20 and they feel really good. Wondering if I could go 235/40 or 245/35 for improvement??
 

avs007

Member
May 14, 2021
167
117
PacNW
Sumitomo. Maybe that’s partly why. I did notice great grip and feel with M3P stock 235/35/20 but they look terrible in wheel well. Now I have pilot sport 4S in 255/40/20 and they feel really good. Wondering if I could go 235/40 or 245/35 for improvement??
I was just curious, becuase I would've thougth that tire model would have more an impact on what you describe, vs simply a small change in profile. Especially since on my other car, I have 275/40 on the rears, which is the same sidewall height as a 245/45. I've run that size in several different tires by Michelin, Continental, and Bridgestone, and never noticed anything like what you described. I would at least try to keep the stock tire width tho, so I wouldn't drop down to 235 or 245. Especially since the load rating on the sizes you mentioned are much lower than the OEM size.
 

smithrukami

Member
May 8, 2019
92
5
irvine
I was just curious, becuase I would've thougth that tire model would have more an impact on what you describe, vs simply a small change in profile. Especially since on my other car, I have 275/40 on the rears, which is the same sidewall height as a 245/45. I've run that size in several different tires by Michelin, Continental, and Bridgestone, and never noticed anything like what you described. I would at least try to keep the stock tire width tho, so I wouldn't drop down to 235 or 245. Especially since the load rating on the sizes you mentioned are much lower than the OEM size.
Thank you. I’m a novice. But doing research. I bought M3P wheels with 235/35/20 and ran them for one week. Amazing road feel. Looked weird in wheel well so I replaced. Now my PS4 have 500 miles and feel great. But I have to admit the 235/35/20 felt a bit more track ready probably because of profile. I can’t imagine 245/35 or 245/40 would be worse maybe just look too small. But I think the car is so close to a M3 it can take a range of sizes.
 

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