265/305 vs 275/305 on VFF 103s?

AleksDeRussian · 09-24-2020, 05:15 PM

I have a 2015 M4 and I bought some vff 103 19in wheels that came with 265/35 and 305/30 tires. I was wondering if I could fit 275/35 or 275/30 tire up front like ECS or PS4S. Would there be any advantages to 275 up front or any problems with traction control or rubbing?
I love the 305s in the back but just want to keep the stagger ratio closer to oem. Anyone with experience have any input if I should move up or just stick to 265/305? I do plan to lower my car as much as the wheels let me with MP HAS.

TopJimmy · 09-26-2020, 03:20 PM

Aleks,
I switched from 255/35/19 to 275/35/19 up front and steering felt heavy. Just barely a rub at full lock but the liner showed it, not heard/felt. Switching to 265/35/19 brought back the light feel but kept grip. Clearance is proper. Rears were 295/30/19 but now I run 305/30/19. Old were Conti, new are RE-71R. Wheels are 19in BBS CI-R 9.5ET25 & 10.5ET35.

Went from stock Non-ZCP springs with EDC, now bumped up to MP-HAS. Tires are just inside of perfect fitment in front and just outside perfect out back (looks fat and proper), no sidewall stretch and no bulge, square shoulders. Only issue with RE-71R is that Velcro sound on certain road surfaces, but they grip great all the time. MPS4S should give the grip you need without the sound. Conti ECS...meh...pass.
-TJ

AleksDeRussian · 09-26-2020, 07:54 PM

Quote:

Originally Posted by TopJimmy

Aleks,
I switched from 255/35/19 to 275/35/19 up front and steering felt heavy. Just barely a rub at full lock but the liner showed it, not heard/felt. Switching to 265/35/19 brought back the light feel but kept grip. Clearance is proper. Rears were 295/30/19 but now I run 305/30/19. Old were Conti, new are RE-71R. Wheels are 19in BBS CI-R 9.5ET25 & 10.5ET35.

Went from stock Non-ZCP springs with EDC, now bumped up to MP-HAS. Tires are just inside of perfect fitment in front and just outside perfect out back (looks fat and proper), no sidewall stretch and no bulge, square shoulders. Only issue with RE-71R is that Velcro sound on certain road surfaces, but they grip great all the time. MPS4S should give the grip you need without the sound. Conti ECS...meh...pass.
-TJ

Sounds like I'll be keeping the 265/305. Did you notice any more understeer going from 295 to 305?

TopJimmy · 09-26-2020, 08:30 PM

Quote:

Originally Posted by AleksDeRussian

Quote:

Originally Posted by TopJimmy

Aleks,
I switched from 255/35/19 to 275/35/19 up front and steering felt heavy. Just barely a rub at full lock but the liner showed it, not heard/felt. Switching to 265/35/19 brought back the light feel but kept grip. Clearance is proper. Rears were 295/30/19 but now I run 305/30/19. Old were Conti, new are RE-71R. Wheels are 19in BBS CI-R 9.5ET25 & 10.5ET35.

Went from stock Non-ZCP springs with EDC, now bumped up to MP-HAS. Tires are just inside of perfect fitment in front and just outside perfect out back (looks fat and proper), no sidewall stretch and no bulge, square shoulders. Only issue with RE-71R is that Velcro sound on certain road surfaces, but they grip great all the time. MPS4S should give the grip you need without the sound. Conti ECS...meh...pass.
-TJ

Sounds like I'll be keeping the 265/305. Did you notice any more understeer going from 295 to 305?

I haven't felt a difference. Most of my hard runs are 1/4mi or roll race, not curves.

horsepower_and_hounds · 09-28-2020, 05:40 AM

Since the V-FF103's are 1/2 inch wider F&R I went +1 on the sizing for similar stretch. 265/285. On my old M4 I ran 265/305 and it was fine just felt a little sidewall soft exiting corners in the mountains

onefastdoc · 10-03-2020, 01:41 AM

A 275/35/19 would rub up front as the tire is too tall. A 275/30/19 up front would be fine with the proper offset.

TopJimmy · 10-04-2020, 11:20 AM

Quote:

Originally Posted by onefastdoc

A 275/35/19 would rub up front as the tire is too tall. A 275/30/19 up front would be fine with the proper offset.

My 275/35/19 Conti 5Ps did not rub up front on stock springs non-ZCP. Only got one tiny shiny spot on the liner the size of a nickel from full lock, no noise, no probs for 9mos. These were my OEM rears moved up front mounted on BBS CI-R 9.5ET25 and paired with 295/30 rears and mounted on 10.5ET35 (shoulda got 295/35 since 295/30 looked short).

kchan · 10-09-2020, 04:31 PM

I have a 18 ZCP, originally came with the 666 20" rims. I feel that's a bit too heavy and bumpy. About 1 year ago I bought a set of Vorsteiner VFF 103 19" rims. The set came with very skinny tires Michelin PSS (245/35/19 and 265/35/19) which was originally mounted on M2.

Anyways, I felt it's more nimble but definitely lost some traction on the rear. Also, I feel that above 80 MPH there's a slight vibration, which somewhat bother me but never try to get it rebalance.

Now, my rear tires is almost toast, the front still has ~4-5 /32nds. I am debating to change out all the tires. What would you pick?

265/35/19 front
285 or 295/35/19 rear

Tire choice is either Michelin PS4 or Continental ECS. Would like to get feedback from you who has similar setup. Stock ZCP suspension, no aftermarket drop. My #1 and #2 goal is quietness and handling. Yes I know this is F80, who cares about quietness...

For the front, it seems like 265 is a safe bet, 275 may have a chance to rub?
For the rear, 285 is the same width as the 666 20" rim, but I think 295 should also fit and has a tad more sidewall (which could be less bumpy?)

Then of course there's price, PS4 is like ~$300 more for a set, does it worth it over the Continental ECS which also seem to have good reviews? Both seem to be relatively not too harsh (compare to Michelin PSS which is what I have now and before).

kchan · 10-09-2020, 04:34 PM

Opps, meant to start a new thread for this... please ignore this post here.

Quote:

Originally Posted by kchan

I have a 18 ZCP, originally came with the 666 20" rims. I feel that's a bit too heavy and bumpy. About 1 year ago I bought a set of Vorsteiner VFF 103 19" rims. The set came with very skinny tires Michelin PSS (245/35/19 and 265/35/19) which was originally mounted on M2.

Anyways, I felt it's more nimble but definitely lost some traction on the rear. Also, I feel that above 80 MPH there's a slight vibration, which somewhat bother me but never try to get it rebalance.

Now, my rear tires is almost toast, the front still has ~4-5 /32nds. I am debating to change out all the tires. What would you pick?

265/35/19 front
285 or 295/35/19 rear

Tire choice is either Michelin PS4 or Continental ECS. Would like to get feedback from you who has similar setup. Stock ZCP suspension, no aftermarket drop. My #1 and #2 goal is quietness and handling. Yes I know this is F80, who cares about quietness...

For the front, it seems like 265 is a safe bet, 275 may have a chance to rub?
For the rear, 285 is the same width as the 666 20" rim, but I think 295 should also fit and has a tad more sidewall (which could be less bumpy?)

Then of course there's price, PS4 is like ~$300 more for a set, does it worth it over the Continental ECS which also seem to have good reviews? Both seem to be relatively not too harsh (compare to Michelin PSS which is what I have now and before).

09-24-2020, 05:15 PM	#1
AleksDeRussian Private First Class 9 Rep 108 Posts Drives: Bmw M4 Join Date: Sep 2019 Location: Knoxville,TN iTrader: (0)	265/305 vs 275/305 on VFF 103s? I have a 2015 M4 and I bought some vff 103 19in wheels that came with 265/35 and 305/30 tires. I was wondering if I could fit 275/35 or 275/30 tire up front like ECS or PS4S. Would there be any advantages to 275 up front or any problems with traction control or rubbing? I love the 305s in the back but just want to keep the stagger ratio closer to oem. Anyone with experience have any input if I should move up or just stick to 265/305? I do plan to lower my car as much as the wheels let me with MP HAS.
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09-26-2020, 03:20 PM	#2
TopJimmy Major General 5459 Rep 5,152 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Aleks, I switched from 255/35/19 to 275/35/19 up front and steering felt heavy. Just barely a rub at full lock but the liner showed it, not heard/felt. Switching to 265/35/19 brought back the light feel but kept grip. Clearance is proper. Rears were 295/30/19 but now I run 305/30/19. Old were Conti, new are RE-71R. Wheels are 19in BBS CI-R 9.5ET25 & 10.5ET35. Went from stock Non-ZCP springs with EDC, now bumped up to MP-HAS. Tires are just inside of perfect fitment in front and just outside perfect out back (looks fat and proper), no sidewall stretch and no bulge, square shoulders. Only issue with RE-71R is that Velcro sound on certain road surfaces, but they grip great all the time. MPS4S should give the grip you need without the sound. Conti ECS...meh...pass. -TJ __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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09-28-2020, 05:40 AM	#5
horsepower_and_hounds Brigadier General 1836 Rep 4,203 Posts Drives: BMW Join Date: Aug 2012 Location: USA iTrader: (9)	Since the V-FF103's are 1/2 inch wider F&R I went +1 on the sizing for similar stretch. 265/285. On my old M4 I ran 265/305 and it was fine just felt a little sidewall soft exiting corners in the mountains
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10-03-2020, 01:41 AM	#6
onefastdoc Lieutenant 115 Rep 424 Posts Drives: 2016 F80 M3 Join Date: Aug 2007 Location: L.A. iTrader: (2)	A 275/35/19 would rub up front as the tire is too tall. A 275/30/19 up front would be fine with the proper offset. __________________ *OneFastDoc* 2012 R35 GT-R Full Bolt On E85 (600whp) 2016 F80 M3 2008 E90 M3 sold 2007 E92 335i (369whp, 354wtq) sold
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10-09-2020, 04:31 PM	#8
kchan Private First Class 39 Rep 129 Posts Drives: 2018 F80 ZCP Join Date: Nov 2017 Location: Fremont, CA iTrader: (0)	265/35/19 and 295/35/19 tire size? Michelin PS4 vs Conti ECS I have a 18 ZCP, originally came with the 666 20" rims. I feel that's a bit too heavy and bumpy. About 1 year ago I bought a set of Vorsteiner VFF 103 19" rims. The set came with very skinny tires Michelin PSS (245/35/19 and 265/35/19) which was originally mounted on M2. Anyways, I felt it's more nimble but definitely lost some traction on the rear. Also, I feel that above 80 MPH there's a slight vibration, which somewhat bother me but never try to get it rebalance. Now, my rear tires is almost toast, the front still has ~4-5 /32nds. I am debating to change out all the tires. What would you pick? 265/35/19 front 285 or 295/35/19 rear Tire choice is either Michelin PS4 or Continental ECS. Would like to get feedback from you who has similar setup. Stock ZCP suspension, no aftermarket drop. My #1 and #2 goal is quietness and handling. Yes I know this is F80, who cares about quietness... For the front, it seems like 265 is a safe bet, 275 may have a chance to rub? For the rear, 285 is the same width as the 666 20" rim, but I think 295 should also fit and has a tad more sidewall (which could be less bumpy?) Then of course there's price, PS4 is like ~$300 more for a set, does it worth it over the Continental ECS which also seem to have good reviews? Both seem to be relatively not too harsh (compare to Michelin PSS which is what I have now and before).
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