Results 1 to 3 of 3

Thread: 215/40r17 Tire Size

  1. #1
    Join Date
    Jan 2016
    Location
    Union, Kentucky
    Posts
    56
    My Cars
    1999 BMW Z3 2.3

    215/40r17 Tire Size

    I'm running some cheap 225/45r17 tires right now that came with the wheels I got. Wheels are Konig 17x7.5 with a 35 offset.

    I'm going to upgrade to some nice summer tires and would like to switch to a lower profile 215/40. I'm lowered with HR springs and get a bit of rubbing on the front plastic fender when going over bumps. I figure a slightly lower profile tire would look good and prevent the rubbing. Also, would give me a bit more pep off the line with a higher final drive ratio.

    Basically, I'm looking to see it others have ran this size tire and if you have any pics or advice to share.

    Thanks,
    Matt

  2. #2
    Join Date
    Aug 2015
    Location
    Denver, CO
    Posts
    3,447
    My Cars
    1999 Z3M, 1999 2.8 Coupe
    I doubt you need to drop diameter by over an entire inch to avoid rubbing. How new are the rest of the suspension parts?

    I'm also running H&R springs but with 18x8.5 ET35 wheels and 235/40-18 tires up front and will only very slightly rub the driver's side liner over a bump when turning right.

  3. #3
    Join Date
    Jan 2016
    Location
    Union, Kentucky
    Posts
    56
    My Cars
    1999 BMW Z3 2.3
    Quote Originally Posted by s8ilver View Post
    I doubt you need to drop diameter by over an entire inch to avoid rubbing. How new are the rest of the suspension parts?

    I'm also running H&R springs but with 18x8.5 ET35 wheels and 235/40-18 tires up front and will only very slightly rub the driver's side liner over a bump when turning right.
    New shocks (less than 5,000 miles) all around. Reinforcement plates on front and rear shocks from ECS. Anything else I shock check for that would be worn?

    Edit: The "rubbing" generally takes place only a high speeds when I go over an expansion joint or something similar on the highway.
    Last edited by zielritter; 01-12-2020 at 03:56 PM.

Similar Threads

  1. What tire size should I order?....more
    By bmwmsport in forum 1991 - 1999 (E36)
    Replies: 4
    Last Post: 08-03-2020, 03:43 PM
  2. (norcal)anyone with a 215-30-18 sized tire wtt for a falken 452 235-40-18?
    By polo12345 in forum Interior Lighting & Body Parts
    Replies: 0
    Last Post: 01-08-2009, 01:13 PM
  3. Increasing 17inch tire sizes
    By Kevlar in forum 1992 - 1999 M3 (E36)
    Replies: 6
    Last Post: 05-28-2001, 05:32 AM
  4. Would rim&tire size effect Dyno numbers?
    By BMBrad in forum 1992 - 1999 M3 (E36)
    Replies: 10
    Last Post: 05-11-2001, 08:39 PM
  5. Tire Sizes
    By Mike325i in forum 1991 - 1999 (E36)
    Replies: 2
    Last Post: 04-07-2001, 07:01 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •