KR133 Tire Pressure

[Binksy]

Howdy folks,

Burning up some of the older rubber sitting in the garage, and just came across my KR133 rear old ASC control tire. I remember they ran a higher pressure unlike KR108 pressure but google is letting me down on the recommended pressure? Anyone happen to know a rough number off the top of their head? Hot cold warmers anything would be useful :)

Cheers

[Marshy]

Soft or medium? Some guys were running them down at 18-19 hot, others at 25-26 hot. Either way, they are shit. The softs are a five-lap wonder tyre, and the Mediums are an endurance tyre.... no grip but last forever.

[Mr.Ed]

25-26 hot but on a 600... but yes, the KR108s or even the D212s are a lot better

[stevem]

I prefer a KR108 2 anyday but thought they were pretty good over 35 track temp but finicky. 19-21 hot off the warmer from memory (soft). When they work they are not far off a 2 but the window is a lot smaller .

[Binksy]

Thanks all ended up getting okay wear out of them. Felt a bit spinny but got through a day on them and didnt have to use a new tire for track days :). Fairly sure it was a medium.

[Mr.Ed]

That's what I find with them as well... they spin a lot easier than the other Dunlop rears. Especially when the track is hot.

[Kris]

That's what I find with them as well... they spin a lot easier than the other Dunlop rears. Especially when the track is hot.


Yup, had mine spin a whole rotation at PI. Fucking shit tyres.

[Slow98]

Guys, I was thinking running for the first time KR108 med-soft or KR108 med-hard with a KR106 front at PI on my 1299 . Ive only ever run Pirellis. Any tips for pressures , expectation etc.

Are these rotating on the rim due to low pressures ? Mounted without lube ?

[Nelso]

Guys, I was thinking running for the first time KR108 med-soft or KR108 med-hard with a KR106 front at PI on my 1299 . Ive only ever run Pirellis. Any tips for pressures , expectation etc.

Are these rotating on the rim due to low pressures ? Mounted without lube ?

20psi (cold track) to 24psi (hot track) hot off the warmer. You won't spin a KR108 on the rim.

[Slow98]

Thanks. Fronts ?

[Nelso]

Thanks. Fronts ?

30-34 off the warmer for a KR106.

[Marshy]

Thanks. Fronts ?

35 on a litrebike in hot temps :)

At PI in the cold, as Nelso says, I'm at 30 on the fronts. 35 in the heat at the Creek. 34 most places in more average weather.

[Slow98]

Treat the fronts like an SC Pirelli then.

[Marshy]

Treat the fronts like an SC Pirelli then.

Yes. They feel very very similar. It's only on the absolute maximum lean, mid-turn in slow corners, that I can tell the difference between the Dunlop front and the Pirelli. If it wasn't for that bit, I wouldn't know.