08-25-2021, 04:31 PM | #1 |
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M235iR Wing Uprights on GTS?
I've searched around and have an email out to one of the suppliers but wanted to ask here whether anyone has installed the M235iR wing stands on their GTS?
Yes, i realize RKP has essentially created a duplicate of these but there's just *something* about having BMW Motorsports parts isn't there? Haha My primary concern is around fitment, whether the distance between the "feet" bolts is the same on the M235iR stands as the GTS trunk, and perhaps whether the blade mounting is the same as well but from pictures they would appear to work. Thanks! |
08-25-2021, 07:59 PM | #2 |
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Well. I have both of these cars, but they're in separate garages. I'm 99% certain the M235iR and M4 GTS wing element is the same, which would suggest that the spacing is the same. I'll be out at the garage with the M235iR tomorrow, if I remember I can measure them.
I'll have to see if I can view the underside of the wing mount on the trunk of the M235iR to see what the bolt spacing is like. |
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08-25-2021, 08:44 PM | #3 |
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Drives: 2016 M4 GTS
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The spacing on the wing stands are the exact same. It's all plug and play.
I just swapped to a set of Team Schirmer wing stands which is higher than oem but not as tall as RKP. Time for the M235IR CF endplates.
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08-25-2021, 11:06 PM | #4 | |
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Oh wow, I didn't even realize there were other options, I've never seen these before. I like that they are between OEM and RKP |
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08-26-2021, 03:36 PM | #6 |
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The OE M235ir uprights don't work on the GTS. The bolt diameter to attach them to the trunk is different. If I recall the GTS is a smaller bolt diameter than the M235ir.
Also, M235ir uprights do not have rubber grommets to seal the holes from the elements. I don't recall if the RKP ones do either though. |
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08-30-2021, 11:30 AM | #7 | ||
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08-31-2021, 06:52 AM | #8 |
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Theses are the endplates I have:
https://futureclassic.us/products/bm...-end-plate-set Was a late 2019 update for the M240IR it seems. |
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08-31-2021, 11:53 AM | #9 | |||
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Also, for clarification I have an oe M235ir wing on my e92 and RKP risers on my GTS. I know for a fact that are not cross compatible. |
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08-31-2021, 10:57 PM | #10 | |||||||||
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09-01-2021, 05:07 PM | #11 |
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Interesting development- one of the vendors I reached out to got back and confirmed fitment and even provided a comparison picture of the mounting surfaces for OEM GTS stands vs the M245iR stands and upon visual it appears the bolt diameters are the same and will line up, maybe those inserts were to size down the hardware? I guess we'll see when they get here!
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rcompound97.00 |
09-21-2021, 03:46 PM | #13 | |
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I have the following 235iR/240iR stands and the holes are definitely too large. According to RealOEM.com they are M8, vs the GTS M6 size. - 51488417323 - 51488417324 Thanks. |
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09-21-2021, 03:57 PM | #14 | |
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09-21-2021, 04:39 PM | #15 | |
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Also of interest, the listing on AP Motorsports website for the wing kit lists the 4 - M8x1.25 bolts (41008421771) that are listed on RealOEM.com. https://www.apmotorsport.co.uk/produ...cing-rear-wing https://www.realoem.com/bmw/enUS/sho...diagId=41_2721 I may just install some M8x1.25 to M6x1 thread reducers with some read Loctite. https://www.ebay.com/itm/254254855623 I'm interested to see what you receive. Do you have an estimated delivery date? |
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09-21-2021, 04:48 PM | #16 |
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09-21-2021, 09:44 PM | #17 | |
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09-22-2021, 12:06 AM | #18 |
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I went ahead and mounted mine today using the larger M8 bolts. After thinking more about it, the bolts are going to have a fair amount more force on them. First, longer uprights and secondly, the wing plane is further behind the lower mounting point.
I also found that the only part which needed to be drilled out was the 4 aluminum bushings, which have enough material and can be very easily replaced to return to stock. Here is bushing for reference: 51628057650 https://www.realoem.com/bmw/enUS/sho...diagId=41_2598 Size differences: OEM Bushings: Bushings after drilling: Fully mounted: Last edited by kryptokatalyst; 09-22-2021 at 04:25 PM.. Reason: Updated info w/photos |
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09-28-2021, 02:14 PM | #19 | |
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10-12-2021, 07:34 PM | #20 |
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Fall-Line Motorsports High Mount Wing sets are another great option available! Since endplates were mentioned as well, we offer them in carbon fiber and the raw BMW finishes.
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JustAnothaM4883.50 Gomeler500.00 |
10-13-2021, 04:35 PM | #21 |
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Just a quick update from my side since some were curious as to what mine would look like/bolt size is when they arrived.
I actually ended up cancelling my order as I saw the GT4 risers that IND sells and prefer the look of those (even though they aren't actual BMW Motorsports parts...). Just patiently waiting for them to be painted and shipped- went with Satin Black and I was told they will go out end of this week. Sorry I will no longer be able to report on the BMWM ones |
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10-14-2021, 03:00 PM | #22 | |
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