THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics Tracking / Autocrossing Bridgestone RE71r 235/45 17 for Auto X

Post Reply
 
Thread Tools Search this Thread
      07-12-2018, 10:32 PM   #1
TajoMan
Private First Class
30
Rep
153
Posts

Drives: 17 M240 xdrive
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

Bridgestone RE71r 235/45 17 for Auto X

Installed Potenza RE71r in 235/45 R17 size.

So far no issue with fitment/rubbing. (17x7.5 ET40)

Sidewall doesn't seem like very stiff but need more time to really feel the difference. Will see how much it rolls.

Compound on this tire is very soft. You can feel it when you touch the thread.
As expected, it picks up everything on the road and throw back to fender liner. lol

It doesn't feel too noisy for now. Although it has some weird hum at higher speed.

Looking forward to next Auto X.
Attached Images
    
Appreciate 0
      07-13-2018, 08:37 AM   #2
bryan_f22
Because Race Car
bryan_f22's Avatar
987
Rep
1,616
Posts

Drives: Agressive: 408whp - 494tq
Join Date: Jun 2012
Location: Queens, NY

iTrader: (0)

you just put yourself into the R-comp class with that tire.

I run these regularly on street/ road track.

Super sticky, very soft, wont last long, not loud at all when comparing to other r comps.

keep it around 34 hot, sidewalls are much stiffer than a mpss. Compare this tier with a nt01.
__________________

www.nybmwcca.org Chief Instructor Auto-X 2018 (7/7, 8/18, 9/1, 10/6)
Motorsport Safety Foundation Certified Instructor
Appreciate 0
      07-13-2018, 09:22 AM   #3
PLF69
Private First Class
PLF69's Avatar
Canada
57
Rep
139
Posts

Drives: 2015 M235i Xdrive
Join Date: Jan 2017
Location: Quebec

iTrader: (0)

I run this size 17x8 wheels, like it ! Next will be a little more street friendly in 245/40-17 like Toyo R1R
__________________
Toy: 2015 M235i Xdrive M Performance Edition 1/50
Daily: 2014 Q5 TDI Malone Stage 2
Appreciate 0
      07-13-2018, 09:36 AM   #4
TajoMan
Private First Class
30
Rep
153
Posts

Drives: 17 M240 xdrive
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

Quote:
Originally Posted by bryan_f22 View Post
you just put yourself into the R-comp class with that tire.
it's still 200 wear rated. lol

Technically, this tire should last 20k miles (with 200 wear rating) but I have no idea how this will last 20k miles.
There is no way this is 200 wear rate.
Appreciate 0
      07-13-2018, 10:28 AM   #5
Anthony235
Major
Anthony235's Avatar
United_States
659
Rep
1,495
Posts

Drives: m235i
Join Date: Feb 2016
Location: OC, Ca

iTrader: (2)

Garage List
2015 BMW  [0.00]
Quote:
Originally Posted by TajoMan View Post
it's still 200 wear rated. lol

Technically, this tire should last 20k miles (with 200 wear rating) but I have no idea how this will last 20k miles.
There is no way this is 200 wear rate.
It's not. They just like to say it is If I remember right the RS3 was 200 treadwear also....the RE71 is way softer.

Some organizations bump you into another class or allocate more points to your car if you run RE71. Bimmer Challenge Time Attack did this to me when I ran RE71.
Appreciate 1
bryan_f22986.50

      07-16-2018, 09:06 AM   #6
bryan_f22
Because Race Car
bryan_f22's Avatar
987
Rep
1,616
Posts

Drives: Agressive: 408whp - 494tq
Join Date: Jun 2012
Location: Queens, NY

iTrader: (0)

Quote:
Originally Posted by TajoMan View Post
it's still 200 wear rated. lol

Technically, this tire should last 20k miles (with 200 wear rating) but I have no idea how this will last 20k miles.
There is no way this is 200 wear rate.
PPl show up on re71s and think they won't be put into the R comp tire, or add 5pts. Your wrong.

Some clubs may overlook it, most won't.

enjoy the tires!!! I thought they were too sticky for auto x on the awd with the understeer, wanted to slide a little more out back.


And watch those cones! I hit one at 90mpg 2 weeks ago, re routed my brake lines cost me $1000 to repair.
__________________

www.nybmwcca.org Chief Instructor Auto-X 2018 (7/7, 8/18, 9/1, 10/6)
Motorsport Safety Foundation Certified Instructor
Appreciate 0
      07-16-2018, 11:50 AM   #7
TajoMan
Private First Class
30
Rep
153
Posts

Drives: 17 M240 xdrive
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

Does SCCA put Re71r in different class?
I couldn't find anything about Re71r in SCCA rule book.
Appreciate 0
      07-16-2018, 10:11 PM   #8
nubbster927
New Member
25
Rep
13
Posts

Drives: AW M235xi
Join Date: Nov 2017
Location: Denver

iTrader: (0)

I'm not sure about SCCA classing, but I'm running this tire and it is fantastic on track! Looking forward to seeing your impressions and pics/vids.
Attached Images
 
Appreciate 0
      07-17-2018, 12:11 PM   #9
semclane
Private
27
Rep
68
Posts

Drives: 2006 330i Sport
Join Date: Jan 2013
Location: Pleasanton, CA

iTrader: (0)

Quote:
Originally Posted by nubbster927 View Post
I'm not sure about SCCA classing, but I'm running this tire and it is fantastic on track! Looking forward to seeing your impressions and pics/vids.
SCCA tire rule for Street and Street Touring classes is a minimum tread wear rating of 200. Ergo: RE71r is legal in both. ST has some restrictions on the maximum width for each subclass.
Appreciate 0
      07-18-2018, 01:56 AM   #10
teinesina
New Member
2
Rep
20
Posts

Drives: M240xi
Join Date: Jan 2018
Location: Nevada

iTrader: (0)

Bridgestone re71s are 100% legal and are one of the most the most preferred tire in all of the scca 200 treadwear minimum classes. I run 235 40 r18s.
Appreciate 0
      07-18-2018, 12:52 PM   #11
Anthony235
Major
Anthony235's Avatar
United_States
659
Rep
1,495
Posts

Drives: m235i
Join Date: Feb 2016
Location: OC, Ca

iTrader: (2)

Garage List
2015 BMW  [0.00]
Quote:
Originally Posted by teinesina View Post
Bridgestone re71s are 100% legal and are one of the most the most preferred tire in all of the scca 200 treadwear minimum classes. I run 235 40 r18s.
Cause it's a cheater tire
Appreciate 0
      07-22-2018, 11:24 PM   #12
TajoMan
Private First Class
30
Rep
153
Posts

Drives: 17 M240 xdrive
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

I did a Auto X this weekend and it was a blast.
Tire held up very well at respectably low pressure (compare to MPSS).

I ran 36~37 in front and 30~32 rear, hot.
Tire wear did not even touch the wear marker triangle. I was impressed.
(I had to run 43~48 psi in front with MPSS to keep the letter readable on the sidewall. lol)

I did not improve that much in terms of my time/score compare to other regular drivers but I think I was little too scared to push way further than I used to with MPSS.
After I checked my videos, I don't hear much tire squeal. I should've pushed more. way more.

Next time, I will lower the pressure to 32~34 in front and 28~30 in rear and push much harder. will see.

Overall, I can see why this is THE tire for Auto X.


Last edited by TajoMan; 07-22-2018 at 11:33 PM. Reason: .
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 08:34 AM.




2addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST