Hello everyone, I have a 2015 F55 3 Cyl. I'm currently looking at buying tires, The ones that are installed at the moment are 205/45R17, I would like to know if I will have any issues if I get the new tires in this size 205/50R17. I tried searching before posting but couldn't find the answer I was looking for, Thanks

 

You're probably fine. That's 3.3% taller than what you have now.

Personally I'd go for 215/45/17 if you want an alternate size. That's only 1.2% taller.

 

Thanks for the response.
Glad to hear that it'll be ok, I thought about a 215 but was kind of worried it was going to hit the strut,
the ones I have now are extremely close to them and I didn't wanted to push my luck.
Maybe next time around I'll get some small wheel spacers and give the 215 a try.

 

205/45-17 to 205/50-17 is quite a jump in terms of overall tire diameter. It’s honestly enough that I would be concerned there would be rubbing. Maybe not on the strut, but possibly on the inner or outer fender trim or other parts, particularly when the suspension is compressed and the wheels turned. It’ll also mess with your speedometer, reading an average of about 2 MPH slower than actual vehicle speed. The speedometer is off a bit anyway, so the oversized tires will help correct that, but they might cause the speedometer to report a speed that’s lower than your actual vehicle speed. Something to be aware of!

Personally, I chose 215/45-17 tires. No issues with rubbing, and closer to the OE tire size.

 

Forgot to mention the winter tires on my F56 SE are 215/45/17 and I don't have any rubbing issues.

 

I moved from 205/45R17 to 205/50R17 on my 2017 F56S to deal with the incompatibility of potholes and low profile tires (fully stock, in my case).

- no rubbing or similar issue.

- yes, raised actual speed by 1-2 MPH (baseline is GPS), with peak at highway speeds. But as noted, the speedometer overreports speed by more than that. So in my case, for example, I went from the speedo saying 75 but actually doing 71, to the speedo say 75 but actually doing 73. I thought about whether to do coding to compensate for this but ultimately I decided it’s fine. I know the speedo is reporting 2MPH over actual most of time, instead of more than that. No biggie.

- better tolerance of potholes and better handling.

In my case the old tires were Bridgestone DriveGuard (run flat), and the new were Bridgestone DeiveGuard Plus (also run flat). I have no way to know if the Plus is specifically better than the non-Plus, since I didn’t try the non-Plus at 205/50.

Hope this is a useful data point. The size bump, btw, was suggested by a tire & suspension shop I have trusted with all my wheel/tire/suspension concerns since 2006, and they handle needs from daily driver to racing. So far their recommend seems to have been solid.

 

Awesome, Thanks. Taking in consideration your experience I believe I will be happy with them. Can't wait to get them installed at the moment my current tires are dry rotted.

 

Well, Got the new tires installed on my F55 with the 205/50R17 and so far everything is being good.
There's no rubbing from lock to lock and the car feels completely different.
The new size absorbs road bumps/ small pot holes very well.
The speedometer is spot on up until around 50 MPH after that it was off by around a mile maybe mile and a half so no concerns there.
Very happy with the out come.

 

This is really cool to hear. “The car feels completely different” — I noticed that too, but wasn’t sure if it was my imagination. Guess not!

Nice to have a second data point on the 205/50R17 — enjoy!

 

bonus: it fills up the wheel well better.