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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 1 Series / 2 Series > E82 / E88 1 Series (2008 - 2013)

E82 / E88 1 Series (2008 - 2013)
BMWs throw back to the iconic 2002, with a renewed form and function. The smallest car in BMW's line up but still packs a punch. Available in coupe or convertible, powered by either an inline 6 in the 128 or the twin turbo rocket sled 135.

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  #26  
Old 03-19-2013, 09:16 PM
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bear-avhistory bear-avhistory is offline
2014 435M-Sport/MPPK
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BMWUSA 1 series Features/Specs Specs

Engine

TwinPower Turbo 3.0/inline 6/4

Displacement

2979 cu cm

Bore/Stroke

3.31/3.53 inch

Nominal output @ rpm

320 @ 5800 hp

Max. torque @ rpm

317 @ 1500-5000 lb-ft

Compression ratio

10.2 :1

Wheels

Tire dimensions standard front

225/40

Tire dimensions standard rear

255/35

Wheel dimensions standard front

18 x 8

Wheel dimensions standard rear

18 x 8.5

Material

light cast alloy
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  #27  
Old 03-19-2013, 10:02 PM
JP 99300 JP 99300 is offline
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OK, I now see that under the "Specifications" tab on the website for 135is convertible. Interestingly, though, if you look at same 135is convertible under the "Standard Features" tab, it lists 18x7.5 w/ 215/40 and 18x8.5 w/ 245/35. So 0.5" wider front wheels too on the vert? Talk about contradicting and confusing!

I guess the proof will be on the actual car when it arrives (or maybe you've already confirmed with one on the lot)....

Thanks for pointing it out.
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  #28  
Old 03-19-2013, 11:28 PM
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bear-avhistory bear-avhistory is offline
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No they just had a Coupe on the lot. Will take a look in a few weeks when its due in & post what it actually has on it. Will still be looking to replace them with get flats but the wider wheels if they are there would increase the available choices.
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  #29  
Old 03-23-2013, 09:54 PM
JP 99300 JP 99300 is offline
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Just received a couple of reports from new 135is convertible owners that the website specs are wrong and their cars have 215/40 and 245/35 tires, same as coupe.
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  #30  
Old 03-23-2013, 11:05 PM
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Sorry to hear that, do you know how wide the wheels are? Need 8X8.5 to get the bigger tires.
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Last edited by bear-avhistory; 03-23-2013 at 11:07 PM.
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  #31  
Old 03-25-2013, 07:37 AM
bmw325 bmw325 is offline
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Just curious why you guys would want even wider tires at the rear? The car is already tuned for understeer an with the wider rear tires it exacerbates the issue. But maybe i'm missing something. Granted it might look a little bettter.
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  #32  
Old 03-25-2013, 08:29 AM
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Understeer/oversteer is less of an issue than loss of traction due to no LSD &/or overpowering the tires.
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Last edited by bear-avhistory; 03-25-2013 at 08:30 AM.
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  #33  
Old 03-25-2013, 08:37 AM
ND40oz ND40oz is offline
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Quote:
Originally Posted by bmw325 View Post
Just curious why you guys would want even wider tires at the rear? The car is already tuned for understeer an with the wider rear tires it exacerbates the issue. But maybe i'm missing something. Granted it might look a little bettter.
Helps put the power down, plus things aren't changing drastically when you move to a 225/255 staggered setup, the percentage of contact patch at the front actually increases a bit.
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  #34  
Old 03-25-2013, 10:07 AM
bmw325 bmw325 is offline
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Originally Posted by bear-avhistory View Post
Understeer/oversteer is less of an issue than loss of traction due to no LSD &/or overpowering the tires.
Kind of fun to overpower the tires though... I think most modern cars are over-tired in the interest of generating good numbers and safety but not as much fun. Kind of like Subaru's approach with the BRZ; they use skinny prius spec tires so you can get the tail out easily.
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  #35  
Old 03-26-2013, 03:08 PM
JP 99300 JP 99300 is offline
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To follow up, it turns out actual tire size on 135is convertible is same as size on coupe. It appears the specs showing wider size for convertible on BMW website are an error.
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  #36  
Old 04-17-2013, 05:18 PM
Guam135i Guam135i is offline
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great info!
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  #37  
Old 04-17-2013, 07:36 PM
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Quote:
Originally Posted by JP 99300 View Post
To follow up, it turns out actual tire size on 135is convertible is same as size on coupe. It appears the specs showing wider size for convertible on BMW website are an error.
Just looked it up & based on the size of the stock wheels width 235F & 255R are the best choice.
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  #38  
Old 09-13-2013, 06:15 PM
spotteddog spotteddog is offline
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Here's my situation. I have a e93 'vert with sport package and want to buy tires with a larger profile. The OEM is 18 inch wheels, tires are 225-40 255-35 rear. I'd like to go 225-45 and 255-40 on those 18-inch rims. Is there enough clearance? No rub? I may not know unless I buy a tire and try it, but anyone else have some experience on this? thx
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