Think 14 or R14 is spot on to the correct seat. Was looking at some 14x1.5 R14 Porsche titanium lug nuts, just was double checking. They are 1/2 the weight of OEM lugs.
Does anyone know the specs of the OEM lug nut/rim ball seat. German cars use numbers like R12 R13 R14 to describe the seat. Was trying to find the specs on the OEM Type S ball seat for 14 x 1.5 lug nuts. Just haven't seen the 'R' number of the seat.
It sits up about an inch like was described with the BMW solution. Flat towards the back seats up an inch in the front. The 115/95/17 tire sticks up less but the design of the rim makes it protrude the inch. Should be fine with the trunk mat. Will follow up with pictures.
Went the 2020 RLX route. Rim 42700-TX4-A51. Lug Nuts 90304-TK4-A01 (5), ball seat lugs for rim match. Continental Tire SContact 115/95/R17. Same size tire used with BMW rim solution. Still working on securing rim in wheel well, will use adhesive.
Genuine Hyundai 65581-3K000 Spare Tire Mounting...
According to Acura Parts websites the RL uses a 42700-SJA-J52 rim where the RLX uses a 42700-TK4-A51 rim. The RLX rim doesn't look as high as the RL rim but hard to tell without the specs. Saw where the RLX rim is available for $55 locally. Just trying to come up with a solution that lays down...
Was wondering about using the tire size used on the BMW solution by @kjechel 115/95/17 vs the RL tire size of 155/70/17. Would the spare sit lower with the 115 vs 155 in the well. Like the RL solution better vs BMW. Just thinking. Thanks.