How do you read the dates on tires? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 23 (permalink) Old 02-09-2012, 03:25 PM Thread Starter
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How do you read the dates on tires?

I have Dunlap 404's on a used bike that I bought. the tread is real good. I don't know how to figure the age. The numbers are on the front NA7M2808 and on the rear NA7M1109. Am I looking at the right numbers?

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post #2 of 23 (permalink) Old 02-09-2012, 04:00 PM
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Quote:
Originally Posted by Mcneuby View Post
I have Dunlap 404's on a used bike that I bought. the tread is real good. I don't know how to figure the age. The numbers are on the front NA7M2808 and on the rear NA7M1109. Am I looking at the right numbers?

Mcneuby
Here Front-July 2008 Rear March 2009

http://blog.unsafemotorcycles.com/20...e-matters.html

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post #3 of 23 (permalink) Old 02-09-2012, 09:25 PM Thread Starter
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Dates on tires

Thanks I just couldn't make sense of it. I really like this forum. A great bunch of people.

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post #4 of 23 (permalink) Old 02-09-2012, 09:49 PM
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First two digits are the week the tires were made and last two are the year.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #5 of 23 (permalink) Old 02-15-2012, 01:49 PM
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This thread made me want to check my dates. When I bought my 2001 last March (2011) the front B-Stone s11 had the 'noogies' on it, so its a new tire. The only number I see are the DOT #'s and at the end is 2310. So its ~May 2010? It had an Avon Venom on the rear, and the DOT number ends in 1105. Am i looking at the right numbers also?

1986 Vn750
18,800 miles, and counting
Bone Stock
New cam chain tentioners
all fluids changed
Spline Lube
windshield
Engine Guard
B-stone S11 RWL-stock sizes
*wanted*
New grips

2001 Vn750
13,100 miles, and counting
spline lube
Bridgestone S11 100/90
Shinko 170/80
rear end oil change
aftermarket mirrors
windshield
otherwise all stock
*anticipated mods*
Engine Guard

Last edited by 1986vn750; 02-15-2012 at 01:51 PM.
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post #6 of 23 (permalink) Old 02-15-2012, 05:35 PM
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That's the correct number that you need to look at. The rear is almost 7 years old.
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post #7 of 23 (permalink) Old 02-15-2012, 09:46 PM
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I took the Avon off and installed a used Dunlop 404 off my dad's '86, because i got him two B-Stone s11's. His are dated at the early 2011. I didnt know the date of the D404 when stalling. Nor did I know that age is such a safety hazard. The tire I put on was on my dads bike when he bought his is 2004, this tire could very well be ten years old. And im sure you're asking "why dont you just look at the date and find out!" thats where it gets weird, I did, and it SAYS it was made is 1986? the last 4 #'s were 4386. that is strange because it had a ton of tread, my dads bike is a 1986, that has 18,000 miles, so if it was the original tire, id imagine it's be worn out!

1986 Vn750
18,800 miles, and counting
Bone Stock
New cam chain tentioners
all fluids changed
Spline Lube
windshield
Engine Guard
B-stone S11 RWL-stock sizes
*wanted*
New grips

2001 Vn750
13,100 miles, and counting
spline lube
Bridgestone S11 100/90
Shinko 170/80
rear end oil change
aftermarket mirrors
windshield
otherwise all stock
*anticipated mods*
Engine Guard
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post #8 of 23 (permalink) Old 02-15-2012, 10:40 PM
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Prior to the turn of the century, tire codes were just three numbers. The year was only one digit. I don't think that number is the tire code.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #9 of 23 (permalink) Old 02-15-2012, 10:57 PM
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thats what i thought. I read on the link earlier in this thread that the '4 number' code started in 2000.

1986 Vn750
18,800 miles, and counting
Bone Stock
New cam chain tentioners
all fluids changed
Spline Lube
windshield
Engine Guard
B-stone S11 RWL-stock sizes
*wanted*
New grips

2001 Vn750
13,100 miles, and counting
spline lube
Bridgestone S11 100/90
Shinko 170/80
rear end oil change
aftermarket mirrors
windshield
otherwise all stock
*anticipated mods*
Engine Guard
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post #10 of 23 (permalink) Old 02-16-2012, 07:35 AM
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If the tire was manufactured before January 1st 2000, the last 3 digits of a DOT number represented the week (2 digits) and the year (1 digit) of production. For example, if the last three digits are 063, the tire was produced in the 6th week of 1993. There is often a triangle after the single year digit. Tires produced after January 1, 2000 have a 4-digit date code at the end of the DOT number. The first 2 digits represent the week of production and the final 2 digits represent the last 2 digits of the year of production. For example, 4104 indicates that this tire was manufactured on the 41stweek of 2004.
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