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Old 01-03-2009, 07:24 PM   #1
Scooby Guru
Member#: 139955
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Boston
2015 Subaru STI
2017 Forester 2.5i

Default Oval "Holes" of varying depth on Direzza Z1 SS Center Strip?

Ive noticed on mine and all other Dunlop Direzza Sport Z1 Star Spec, along the center tread strip, there are 4 sets, 3 holes each, varying depth. What are these for?

2nd tire from top, 2 sets are visible, 3rd tire from top, 1 set is visible.

Pretty visible here
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