Another tyre question

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blinkey501 · #1 Post by **blinkey501** » Fri Jan 06, 2012 7:38 pm

I had some tyres given to me when i aquired the falco.
There are dates molded into the side wall of the tyre but the tyres are
out of date?
I am thinking of doing a few track days and fitting these tyres to a different set of of rims and not using them on the road.
Can anyone see a problem with doing this?

D-Rider · #2 Post by **D-Rider** » Fri Jan 06, 2012 8:18 pm

blinkey501 wrote:I had some tyres given to me when i aquired the falco.
There are dates molded into the side wall of the tyre but the tyres are
out of date?
I am thinking of doing a few track days and fitting these tyres to a different set of of rims and not using them on the road.
Can anyone see a problem with doing this?

These are "eat by" dates. If they've already passed you may find them a bit on the tough side. Pot roasting may make them more palatable.

.... actually I'm pretty sure that along with many things like this, they will be the dates of manufacture.
This supports my view: http://www.p-t-a.co.uk/Tyre-Age.htm

blinkey501 · #3 Post by **blinkey501** » Fri Jan 06, 2012 8:34 pm

Nice one andy.

szrdave · #4 Post by **szrdave** » Fri Jan 06, 2012 9:08 pm

How old and what kind of tyres are they?

I think most manufacturers state 7 years as the max shelf life, but as with most things how they've been stored is as important as age.

#5 Post by **mangocrazy** » Fri Jan 06, 2012 9:30 pm

Some years ago I found this site which answers just about every question you may have regarding tyres and wheels. Here's what they have to say about tyre dates. It's mainly for cars but applies to bikes as well:

http://www.carbibles.com/tyre_bible.html

Basically, you shouldn't be using a tyre that is more than 6 years old; i.e. if you bought it before Jan 2006, then change it, now...

blinkey501 · #6 Post by **blinkey501** » Fri Jan 06, 2012 9:31 pm

I have just been and had a look.
They are scrap, which is sad has they have never been fitted.

#7 Post by **mangocrazy** » Fri Jan 06, 2012 9:35 pm

The thing is, if a tyre is over 6 years old, because tyre technology has moved on so fast it will be way behind what's currently available. It's a bit like graphics cards in that respect (to refer to another currently active thread)...

szrdave · #8 Post by **szrdave** » Fri Jan 06, 2012 10:10 pm

mangocrazy wrote:The thing is, if a tyre is over 6 years old, because tyre technology has moved on so fast it will be way behind what's currently available. It's a bit like graphics cards in that respect (to refer to another currently active thread)...

True, does depend on the tyre though.

I'd happily fit a pair of Rennsports or Dragon Supercorsas, but wouldn't touch a Hi-Sport or D207!

blinkey501 · #9 Post by **blinkey501** » Fri Jan 06, 2012 10:20 pm

I might have mis led slightly...
These are road tyres. Bridgestones; I have done 2 track days, the BT021s i have fitted to the bike have been brilliant.
I have these tyres spare and i thought maybe they would be just has good if the date was ok.
Thanks for your help

flatlander · #10 Post by **flatlander** » Fri Jan 06, 2012 11:24 pm

from memory the date is in the stretched oval and is the week up to 5x and year

ReggieGasket · #11 Post by **ReggieGasket** » Sat Jan 07, 2012 10:26 am

Hi, if you are thinking of doing track days, I would strongly encourage you to buy a set of used racer's tyres. The performance of the tyres these days is incredible and the Falco feels very good on sticky tyres, particularly the front end. The main limitation of the Falco on track is front end feel and the extra confidence that comes from using track tyres helps considerably when you commit to a corner. The Falco can do very good lap times, but corner entry is tricky as the bike is slow steering and bulky (relatively). I also find thesse tyres better on the road too, but you need to be careful to warm them up and in the wet. The most recent tyres I used were Dunpop Sportmax GP, which were made for a national race series - very grippy and very long lasting.

D-Rider · #12 Post by **D-Rider** » Sat Jan 07, 2012 11:03 am

ReggieGasket wrote: The most recent tyres I used were Dunpop Sportmax GP,

.... from the pre-punctured series?

randomsquid · #13 Post by **randomsquid** » Sat Jan 07, 2012 1:35 pm

My rear roadsmart has a large nail in it. That can't be helping the unsprung weight at all.

szrdave · #14 Post by **szrdave** » Sat Jan 07, 2012 4:15 pm

ReggieGasket wrote:Hi, if you are thinking of doing track days, I would strongly encourage you to buy a set of used racer's tyres. The performance of the tyres these days is incredible and the Falco feels very good on sticky tyres, particularly the front end. The main limitation of the Falco on track is front end feel and the extra confidence that comes from using track tyres helps considerably when you commit to a corner. The Falco can do very good lap times, but corner entry is tricky as the bike is slow steering and bulky (relatively). I also find thesse tyres better on the road too, but you need to be careful to warm them up and in the wet. The most recent tyres I used were Dunpop Sportmax GP, which were made for a national race series - very grippy and very long lasting.

The most important thing though, is a Falco sitting on a pair of sticky tyres looks cool and purposeful.

A Falco on a pair of 020s looks like it's fallen asleep in front of the fire, next to its pipe and slippers

#15 Post by **mangocrazy** » Sat Jan 07, 2012 4:52 pm

Reggie, these Dunlop Sportmax GPs of which you speak - what do they do to the handling? Do they make the bike steer quicker, and if so is that at the expense of stability? And what are they like on warm-up? Can you happiliy iuse them without tyre blankets?

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