Tire tread depth
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For the Z06 (2017), the front tires have a tread depth of 7.4/32”. The rear tires are listed at 7.8/32”.
Melting Slicks
Joined: Mar 2013
Posts: 3,104
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From: Baton Rouge LA
My 2017 GS had 7.2/32" in the outer and middle large groove of both front and rear tires (non-Cup2), but 6.7/32" in the inner groove. Being less than spec and the discrepancy in the inner groove surprised me so I checked another new GS at a local dealership and it was the same. So don't freak out if you see less depth on the inner groove and blame wheel alignment, that is unless its >0.5/32".
Le Mans Master
Joined: Sep 2004
Posts: 6,019
Likes: 567
From: Conroe Texas
tire rack states that the tread depth is 5.9/32 for the fronts and 5.7/32 for the rears.
SIZE UTQG MAX.
LOAD MAX. INFLATION PRESSURE TREAD DEPTH TIRE WEIGHT RIM WIDTH RANGE MEAS. RIM WIDTH SECT. WIDTH TREAD WIDTH OVERALL DIAM. REVS. PER MILE COUNTRY OF
ORIGIN* P285/30ZR19
(94Y) SL
Run Flat
Front 180 AA A 1,477 lbs 51 psi 5.9/32" 29 lbs 9.5-10.5" 10" 11.4" 11.2" 25.8" 807 US
P335/25ZR20 (99Y) SL
Run Flat
Rear 180 AA A 1,709 lbs 51 psi 5.7/32" 32 lbs 11.5-12.5" 12" 13.5" 13" 26.6" 782 US
Specs for Selected Tire
This front/rear set fits your 2017 Chevrolet Corvette Grand Sport Coupe.SIZE UTQG MAX.
LOAD MAX. INFLATION PRESSURE TREAD DEPTH TIRE WEIGHT RIM WIDTH RANGE MEAS. RIM WIDTH SECT. WIDTH TREAD WIDTH OVERALL DIAM. REVS. PER MILE COUNTRY OF
ORIGIN* P285/30ZR19
(94Y) SL
Run Flat
Front 180 AA A 1,477 lbs 51 psi 5.9/32" 29 lbs 9.5-10.5" 10" 11.4" 11.2" 25.8" 807 US
P335/25ZR20 (99Y) SL
Run Flat
Rear 180 AA A 1,709 lbs 51 psi 5.7/32" 32 lbs 11.5-12.5" 12" 13.5" 13" 26.6" 782 US
