Tyre size

205 / 40 R18 · every rim width

100 real, user-submitted fitments of 205/40 R18 across 8 rim widths, 7.5J to 10J. Pick a width to see its photos.

7.5J · 205/40 R18

6 fitments · 191 mm rim, 14 mm narrower than the tyre

8J · 205/40 R18

13 fitments · 203 mm rim, 2 mm narrower than the tyre

8.25J · 205/40 R18

3 fitments · 210 mm rim, 5 mm wider than the tyre

8.5J · 205/40 R18

29 fitments · 216 mm rim, 11 mm wider than the tyre

8.75J · 205/40 R18

8 fitments · 222 mm rim, 17 mm wider than the tyre

9J · 205/40 R18

16 fitments · 229 mm rim, 24 mm wider than the tyre

9.5J · 205/40 R18

21 fitments · 241 mm rim, 36 mm wider than the tyre

10J · 205/40 R18

4 fitments · 254 mm rim, 49 mm wider than the tyre

Most viewed 205/40 R18 fitments

An example of tyre stretch: 205/40 R18 on 8.5J – ACHILLES

ACHILLES8.5J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.5J – ACHILLES

ACHILLES8.5J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – SEMPERIT

SEMPERIT8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – SEMPERIT

SEMPERIT8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 7.5J – BRIDGESTONE

BRIDGESTONE7.5J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – YOKOHAMA

YOKOHAMA8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J

205/40 R188.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – NANKANG

NANKANG8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – SEMPERIT

SEMPERIT8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.5J – NANKANG

NANKANG8.5J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – NITTO

NITTO8.0J · 205/40 R18

An example of tyre stretch: 205/40 R18 on 8.0J – SEMPERIT

SEMPERIT8.0J · 205/40 R18

Other R18 sizes

13 rim widths · 184 fitments

11 rim widths · 180 fitments

10 rim widths · 116 fitments

10 rim widths · 113 fitments

8 rim widths · 58 fitments

7 rim widths · 55 fitments

5 rim widths · 29 fitments

8 rim widths · 27 fitments

205/40 R18 rim widths: common questions

What rim widths has 205/40 R18 been stretched on?: TyreStretch.com has real photos of 205/40 R18 on 8 rim widths: 7.5J (6 photos), 8J (13 photos), 8.25J (3 photos), 8.5J (29 photos), 8.75J (8 photos), 9J (16 photos), 9.5J (21 photos), 10J (4 photos).
Which rim width has the most 205/40 R18 photos?: 8.5J, with 29 of the 100 photos. That reflects what the community has uploaded, not a fitment recommendation.
How much wider than a 205/40 R18 tyre is each rim?: A 205/40 R18 tyre has a nominal section width of 205 mm. The rims pictured run from 191 mm (7.5J) to 254 mm (10J) across the bead seats.