Tyres expire?

Dim675 · 4 September 2009 23:38

I’ve found a good deal on a pair of tyres(Diablo Supercorsa BSB) for my 675 however, I will be away from my bike for 6 months. Before that I will have a full 3,5 months to enjoy my pair of new tyres. Do you think it is a pointless purchase or can I remove them and store them for use after my return back home? What should I look for? Any tips would be very helpful.

PS
The tyres I have now are the plain Diablos and are in a reasonably good condition(about 3000+ km) but I don’t know whether they could be ideal for a trackday scenario. Any opinions on that?

Thank you in advance

SneakyMcC · 5 September 2009 07:26

Buy them, enjoy them, BCR them and they’ll be gone in 3.5 months! Did I read that on the side wall of tyres (Car tyres?) the a 4 digit number that that denotes what week of what year they where produced?

Drivers will keep their tire pressure in optimum parameters, and make sure that the threads are still good, but most often than not, we overlook the other factor that tells us how good the tire is at holding the car on the road, its freshness.

As tires are made of rubber compound, and rubber tends to get stiffen over time, fresher tire will always yield better grips. As a rule of thumb, never buy tires that are manufactured more than 6 years ago, sitting on the shelves all these while.

**Fortunately, the tire manufacture date is stamped on every tire as part of the DOT code. Look out for the 4 digit code (if it is 3 digit, your tire is already way too old, manufactured before the year 2000) stamped on the sidewall of the tire. The first two digits denote the week of birth, and the last two digits describing the year of birth.

In the accompanying picture, then, 3902 means this particular tire was manufactured on the 39th week of 2002. Dividing 39 by 4 (4 weeks a month) gets us 9.x, so it was produced sometimes in September, 2002. Simple as that.
**
So, next time when you put in new tires, make sure they are still new. If your current set of tires still has good threads left but are already over 6 years since it was produced, consider replacing them.

From here:

http://www.kydrives.net/2006/11/13/tire-dot-code-knowing-the-age-of-your-tires/