tread depth questions

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Apr 22, 2021 | 11:49 AM

#11

JONNIEROCK

Road Master

Joined: Oct 2009

Posts: 861

Likes: 135

From: Wisconsin

Quote:

Originally Posted by mazz

i have 11000 miles on my third set of Dunlop [OEM] tires on 2017 CVO limited . i have 9 mm tread depth on rear tire and 7mm on front tire. That seams to good to be true i recall worst case tires must be replaced at 2 or 3 mm . How many miles do i have left on these tires?
Mazz

What I do is measure the depth. Deduct that from new specs. Then figure out how many miles per 1/32" I'm getting, then you can come close to how many miles you have left. Works pretty good for me.

According to Dunlop's website, tread depth on your OE tires when new:
Front...5/32"
Rear...10/32"

Apr 22, 2021 | 02:40 PM

#12

btsom

Grand HDF Member

Joined: Jan 2012

Posts: 4,428

Likes: 2,779

From: Oklahoma

Re the above post, remember that replacement is recommended when tread depth is 1/32 (tread wear indicators) so that means for a front tire you only have 4/32 of wear available and for the rear, only 9/32. If you do your math based on tread depth new without subtracting the 1/32, you will be calculating miles to a bald tire. Slicks may be fine on dry pavement, but if you ever get caught in the rain or ever run through a wet spot, LOOK OUT!