Every new tire will be coated & impregnated with the mold release goop that they paint inside the tread mold before they do the last tread molding stage of tire manufacture so that they can get the tire out without damaging the tread sipes & grooves etc after the tread pattern is melted into the tread layer of rubber - and this goop is seriously slippery stuff, even if it's mostly wiped off!! Which is why, just like Ann said earlier, they
strongly recommend that you exercise a little care & aim for smoooooth throttle, steering, & brake applications for about 3-500 miles or so after fitting new tires! :lecturef_smilie:
And yeah, it
does take that long for the stuff to wear/scrub off - the only other 'non tire damaging' way to get it all off the tire properly is to shave a couple of millimetres or so of tread off the tire, & that'd be maybe 10-15,000 miles of potential tread wear you'd likely loose!!! For most, it's much easier just to drive a little carefully for a few weeks or so after fitting new tires, isn't it?!? If you really don't want to do that, you could stick your tires in an oven & cook them at about 200F for saaay 12 or so hours each (but that does tend to bake all the sticky stuff outta the tread compound & make the tire tread go permanently hard & inflexible & not much fun to drive on.... ever!! And it really pisses off the Missus too! :shocked: :dontknow

OR you could ask your tire dealer about getting some
'on vehicle dynamic balancing including tread shaving' done - once you find someone with the right gear who can do that for you, it's not usually all that expensive, & it has the added advantage of not only removing the mold release goop but also makes the tire
perfectly round, & balances it fantastically at the same time!! Many top end super expensive cars get this sort of tire treatment as a matter of course, but it's not all that common unless the vehicle has 6 or more '0's' after a 'number bigger than 3 or so'..... but it can be done!
:thumbup:
Ps: just in case anyone missed it in amongst those earlier posts, Arachnid tires are pretty much just copies of the OE Spec Kendas for our Spyders, & as such, they are
almost as good..... but then, since the Kendas are crap anyway.... :dontknow: