SLK/R170: wheel sizes
Thread Starter
Newbie
Joined: Aug 2005
Posts: 11
Likes: 0
From: l.a.
slk230
wheel sizes
i bought my 98 slk 230 used, the previous owner apperatnly bought some bbs wheels for it, they are getting tired looking. the tires are still good, they are 225/40 rz 18 , i dont know jack about wheel or tires sizes, what wheel sizes are compatible for these tires? what does 225/40rz18 mean?
thnks guys
thnks guys
Out Of Control!!
Joined: Jul 2002
Posts: 28,933
Likes: 12
BBS wheels are wicked 
I'll use your example for my explanation.
225 / 40 / 18 / RZ
225mm wide.
40% of your width is equal to your side wall, or the side of the tire.
18" diameter rim.
RZ is your load and speed rating. I can't remember what RZ is specifically though.
Depending on how the previous owner setup the car, I'm not sure what to say. He might have been running very wide with a VIP look, therfore using a stretched tire. Or he might have been going for that dragger look with a very wide tire on a skinny rim.
Do you know how wide those BBS rims are?
I'll use your example for my explanation.
225 / 40 / 18 / RZ
225mm wide.
40% of your width is equal to your side wall, or the side of the tire.
18" diameter rim.
RZ is your load and speed rating. I can't remember what RZ is specifically though.
Depending on how the previous owner setup the car, I'm not sure what to say. He might have been running very wide with a VIP look, therfore using a stretched tire. Or he might have been going for that dragger look with a very wide tire on a skinny rim.
Do you know how wide those BBS rims are?
Thread Starter
Newbie
Joined: Aug 2005
Posts: 11
Likes: 0
From: l.a.
slk230
yeah, they look great but the road rash has put a beatin' on em'.i wonder if its possible to repair them, and maybe have them painted a gloss black.sorry i dont have a cam, but i will search for them online.
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MBWorld Fanatic!
Joined: Mar 2002
Posts: 1,537
Likes: 2
From: Arizona, USA
W205 C300
7.5" or 8" wide x 18" would be fine with that size tire. Make sure you get the right off-set, ET31 to 35. OEM wheels have the width and off-set stamped on the inside and most good aftermarket wheels do too. The off-set, labeled as "ET" is important so that they don't rub.
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