Tire Offset Numbers
Thread Starter
Pro
Joined: Oct 2006
Posts: 654
Likes: 1
From: Prescott Valley Arizona
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Depends on the width of the wheels. Diameter means nothing. Offset merely determines how far in or out the wheel will sit relative to the hub.
Not knowing the widths, ballpark offset numbers will be in the 50s for a C5.
Not knowing the widths, ballpark offset numbers will be in the 50s for a C5.
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
Here you go (from sticky in C5 General Section):
Wheels
19.2 lbs, front; 21.4 lbs, rear - 97-99 OEM wagon - Src
22 lbs, front; 29 lbs, rear - 97-99 OEM wagon - Src
17 lbs, front; 19.5 lbs rear - 97-00 OEM magnesium - Src
17.5 lbs, front; 19.5 lbs, rear - 97-00 OEM magnesium - Src
18.08 lbs, front; 20.06 rear - 00 OEM standard, thin spoke, high polish - Src
17 lbs, front; 20 lbs, rear - 00 OEM standard, thin spoke, painted, no sensors or centercaps - Src
16 lbs, front; 20 lbs, rear - 01 OEM standard high polish - Src
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged - Src
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun - Src, Src
24 lbs, 18x10.5 - 00+ repro high polish - Src
28 lbs, front; 32 lbs, rear - Z06 chrome repro - Src
23 lbs, front; 26 lbs, rear - Z06 chrome repro - Src
23.5 lbs, front; 24.5 lbs, rear - Z06 Motorsports, polished - Src
20 lbs, 17x8.5, 58mm offset, front; 23 lbs, 18x9.5, 65mm offset, rear - PWO - Src
22 lbs, 18x10.5, 58mm offset, front - HRE 545 w/clear center - Src
27 lbs, 18x12, 74mm offset, rear - HRE 545 w/clear center - Src
24/25 lbs - Z07 wheel weight, front - Src
28 lbs - Z07 wheel weight, rear - Src
OEM Wheel specs
8.5"x17", front; 9.5"x18", rear --- 97-99 Wagon wheels --- Source
8.5"x17", offset=58mm, front; 9.5"x18", offset=65mm, rear --- 00-04 Thin/Thick 5-spoke wheels --- Source, Source
9.5"x17", front; 10.5"x18", rear --- 01-04 Z06 forged or cast wheels --- Source
17"x11", offset=50mm, rear --- AFS GS --- Source, Source=http://forums.corvetteforum.com/showthread.php?t=448185]Source[/url]
Wheels
19.2 lbs, front; 21.4 lbs, rear - 97-99 OEM wagon - Src
22 lbs, front; 29 lbs, rear - 97-99 OEM wagon - Src
17 lbs, front; 19.5 lbs rear - 97-00 OEM magnesium - Src
17.5 lbs, front; 19.5 lbs, rear - 97-00 OEM magnesium - Src
18.08 lbs, front; 20.06 rear - 00 OEM standard, thin spoke, high polish - Src
17 lbs, front; 20 lbs, rear - 00 OEM standard, thin spoke, painted, no sensors or centercaps - Src
16 lbs, front; 20 lbs, rear - 01 OEM standard high polish - Src
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged - Src
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun - Src, Src
24 lbs, 18x10.5 - 00+ repro high polish - Src
28 lbs, front; 32 lbs, rear - Z06 chrome repro - Src
23 lbs, front; 26 lbs, rear - Z06 chrome repro - Src
23.5 lbs, front; 24.5 lbs, rear - Z06 Motorsports, polished - Src
20 lbs, 17x8.5, 58mm offset, front; 23 lbs, 18x9.5, 65mm offset, rear - PWO - Src
22 lbs, 18x10.5, 58mm offset, front - HRE 545 w/clear center - Src
27 lbs, 18x12, 74mm offset, rear - HRE 545 w/clear center - Src
24/25 lbs - Z07 wheel weight, front - Src
28 lbs - Z07 wheel weight, rear - Src
OEM Wheel specs
8.5"x17", front; 9.5"x18", rear --- 97-99 Wagon wheels --- Source
8.5"x17", offset=58mm, front; 9.5"x18", offset=65mm, rear --- 00-04 Thin/Thick 5-spoke wheels --- Source, Source
9.5"x17", front; 10.5"x18", rear --- 01-04 Z06 forged or cast wheels --- Source
17"x11", offset=50mm, rear --- AFS GS --- Source, Source=http://forums.corvetteforum.com/showthread.php?t=448185]Source[/url]
Last edited by Oldvetter; Jan 31, 2007 at 07:35 PM.
Thread Starter
Pro
Joined: Oct 2006
Posts: 654
Likes: 1
From: Prescott Valley Arizona
Here you go (from sticky in C5 General Section):
Wheels
19.2 lbs, front; 21.4 lbs, rear - 97-99 OEM wagon - Src
22 lbs, front; 29 lbs, rear - 97-99 OEM wagon - Src
17 lbs, front; 19.5 lbs rear - 97-00 OEM magnesium - Src
17.5 lbs, front; 19.5 lbs, rear - 97-00 OEM magnesium - Src
18.08 lbs, front; 20.06 rear - 00 OEM standard, thin spoke, high polish - Src
17 lbs, front; 20 lbs, rear - 00 OEM standard, thin spoke, painted, no sensors or centercaps - Src
16 lbs, front; 20 lbs, rear - 01 OEM standard high polish - Src
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged - Src
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun - Src, Src
24 lbs, 18x10.5 - 00+ repro high polish - Src
28 lbs, front; 32 lbs, rear - Z06 chrome repro - Src
23 lbs, front; 26 lbs, rear - Z06 chrome repro - Src
23.5 lbs, front; 24.5 lbs, rear - Z06 Motorsports, polished - Src
20 lbs, 17x8.5, 58mm offset, front; 23 lbs, 18x9.5, 65mm offset, rear - PWO - Src
22 lbs, 18x10.5, 58mm offset, front - HRE 545 w/clear center - Src
27 lbs, 18x12, 74mm offset, rear - HRE 545 w/clear center - Src
24/25 lbs - Z07 wheel weight, front - Src
28 lbs - Z07 wheel weight, rear - Src
OEM Wheel specs
8.5"x17", front; 9.5"x18", rear --- 97-99 Wagon wheels --- Source
8.5"x17", offset=58mm, front; 9.5"x18", offset=65mm, rear --- 00-04 Thin/Thick 5-spoke wheels --- Source, Source
9.5"x17", front; 10.5"x18", rear --- 01-04 Z06 forged or cast wheels --- Source
17"x11", offset=50mm, rear --- AFS GS --- Source, Source=http://forums.corvetteforum.com/showthread.php?t=448185]Source[/url]
Wheels
19.2 lbs, front; 21.4 lbs, rear - 97-99 OEM wagon - Src
22 lbs, front; 29 lbs, rear - 97-99 OEM wagon - Src
17 lbs, front; 19.5 lbs rear - 97-00 OEM magnesium - Src
17.5 lbs, front; 19.5 lbs, rear - 97-00 OEM magnesium - Src
18.08 lbs, front; 20.06 rear - 00 OEM standard, thin spoke, high polish - Src
17 lbs, front; 20 lbs, rear - 00 OEM standard, thin spoke, painted, no sensors or centercaps - Src
16 lbs, front; 20 lbs, rear - 01 OEM standard high polish - Src
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged - Src
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun - Src, Src
24 lbs, 18x10.5 - 00+ repro high polish - Src
28 lbs, front; 32 lbs, rear - Z06 chrome repro - Src
23 lbs, front; 26 lbs, rear - Z06 chrome repro - Src
23.5 lbs, front; 24.5 lbs, rear - Z06 Motorsports, polished - Src
20 lbs, 17x8.5, 58mm offset, front; 23 lbs, 18x9.5, 65mm offset, rear - PWO - Src
22 lbs, 18x10.5, 58mm offset, front - HRE 545 w/clear center - Src
27 lbs, 18x12, 74mm offset, rear - HRE 545 w/clear center - Src
24/25 lbs - Z07 wheel weight, front - Src
28 lbs - Z07 wheel weight, rear - Src
OEM Wheel specs
8.5"x17", front; 9.5"x18", rear --- 97-99 Wagon wheels --- Source
8.5"x17", offset=58mm, front; 9.5"x18", offset=65mm, rear --- 00-04 Thin/Thick 5-spoke wheels --- Source, Source
9.5"x17", front; 10.5"x18", rear --- 01-04 Z06 forged or cast wheels --- Source
17"x11", offset=50mm, rear --- AFS GS --- Source, Source=http://forums.corvetteforum.com/showthread.php?t=448185]Source[/url]
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Offset requirements will change with the width of the wheel. A 18x9.5 with a 58mm offset will fit completely different than a 18x10.5 with a 58mm offset.Many people get offset confused with spacing in front of the hub. Offset changes as a wheel is widened.
