Re: Wheels & Tyres FAQ- please read before posting
Posted: Thu Jun 22, 2017 8:50 pm
Thanks Marco, less grip on the new tyres may still be better than what it's got at the moment!
Part number 36316796205, which might be embossed on the back. Might be split up like 36 31 6796205, or just the last seven digits 6796205Mistrale wrote: ↑Wed Jun 28, 2017 9:43 amHi all, sorry if this is covered elsewhere - I had a good look, honest!!
About to pick up a 2014 M135i I have found some winter wheels/tyres for sale that 'should' be 17" style 380 wheels. They are a fair way away from me so I want to be sure - where is the part number stamped on these - does anyone have a picture I can send to the seller please?
What about the f22 2 series, is it the same my 240 has 225/40 front and 245/35 rear?130girl wrote: ↑Sun Apr 01, 2007 11:41 pmWheels and Tyres
Frequently Asked Questions (FAQ)
Updated: 1 May 2007
Hi everyone. Members are often asking the same questions on wheels and tyres so I have compiled the following FAQ for this topic based on what members have posted.
1. What are the standard wheel and tyre sizes for BMW 1er?
7JX16 ET:44 .......... for 205/55/16 tyres
61/2JX16 ET:42 ..... for 195/55/16 tyres
7JX17 ET:47 .......... for 205/50/17 tyres
71/2JX17 ET:47 ..... for 225/45/17 tyres (only rear)
71/2JX18 ET:47 ..... for 205/45/18 tyres (front)
8JX18 ET:49 .......... for 225/40/18 tyres (rear)
2. What do the different BMW OEM 1er wheel styles look like?
See this site.
3. What is the stud pattern for the 1er?
pcd is 5/120
4. Can I replace my RunFlat Tyres ("RFT") with conventional non RFTs on my BMW OEM wheels?
This is a highly contentious issue. From a practical perspective, the answer is yes, however 1er owners should satisfy themselves regarding:
a. Your BMW warranty. It appears that using non RFT at least voids your BMW warranty in relation to anything related to the use of non RFTs.
b. Your insurance. ie that your insurance company does not consider using non RFT on a 1er to be a modification which voids or otherwise creates an exception to your policy. The general consensus appears to be that non RFT are not considered a modification to your 1er that changes your insurance.
c. Legal requirements. Are there any relevant legal requirements in your jurisdiction to carry equipment to deal with any flat? Regardless, owners should consider how to deal with flats from a practical point of view.
d. Your safety. Cars fitted with RFT generally have greater control after any (especially sudden) loss of tyre pressure at speed.
The run flat tyre indicator works fine with non RFT as the 1er uses an indirect monitoring system. Don't forget to reset it per the 1er owners manual.
5. OK, I've decided to get non RFT- what do I do about any flat tyres?
Try using the BMW Mobility Kit (see here) or use a similar third party product.
6. I cannot find 18" non RFT that are identical to OEM spec- what can I use?
Widest specs that keep the speedometer as accurate as possible and understeer/oversteer bias with no guard rubbing is 225 40 18 front and 245 35 18 rear (see here). Those wanting more oversteer bias may consider 225 40 18 for both front and rear.
7. Will 255 tyres fit on the rear?
Tyre manufacturers generally specify that 255 tyres are too wide for all wheels up to and including 8” in width. However, TUV has certified some 255 tyres for use with 8" wide wheels. See here. Members generally report no rubbing issues for 255 tyres on the standard BMW 18" 208M wheels.
8. What tyres should I use?
Depends on your priorities. See here for a recent tyre comparison using the 3er.
9. What non RFT are BabyBMW members putting on their 1ers?
Pirelli P Zero Rosso
225 40 18 and 255 35 18 (Roofer)
225 40 18 both front and rear (Vasalis, Pilsbury)
Continental Contact Sport 2
205 50 17 and 225 45 17 (Rumple and here)
225 40 18 and 245 35 18 (Iwant1)
225 35 19 and 235 35 19 (minfred)
225 40 18 both front and rear (Ghibbett and Woms)
Goodyear Eagle F1 GS-D3
225 40 18 and 245 35 18 (Scottie)
Yokohama Advan Sport
215/45/18 and 235/40/18 (kompey)
Michelin Primacy HPZP
225 45 17 and 225 45 17 (Juancarslim)
235/35/19 and 265/30/19 (aponting389)
235/40/19 both front and rear (atmosphere)
225 45 17 both front and rear (oreo)
Michelin Pilot Preceda (PP2)
205/50/17 and 225/45/17 (08ABC)
225/40/18(88 ) front on 208M 7.5-inch (serpent1)
255/35/18(94) rear on 208M 8.0-inch (serpent1)
10. Where can I find more info about tyres?
I'm happy to add any other questions which the forum is able to work out so hopefully we can make this a fairly comprehensive document that will be useful to all. Please post specific edits as a reply to this topic and I will amend the above based on what is accepted.
As always on BabyBMW.net, all care was taken when compiling this information but people should satisfy themselves whether this is indeed appropriate for them before acting on the same.
Thanks to all who contributed to this info and helped me compile it. Any errors/omissions please let me know.
Standard Sport ones, look like this:
The width - not really, but if the offset is different than stock it can add more load on to the wheel bearings. If you are running aftermarket wheels I would expect them to refuse the claim (although it's not a given).Adam-M wrote: ↑Mon Sep 24, 2018 11:28 amDoes anyone know if the width size of an alloy can have an impact on the wheel bearing? My car has come back with an advisory for the front wheel bearing on its MOT, its running 8.5J aftermarket all round on my 2012 1 series. Its under warranty and this is covered, but wondering if BMW will kick up a fuss if the aftermarket alloys are directly related to causing the problem? Many thanks