Track day tyre pressure advice?

[rina]

hey im just wonderin if anyone would know how many psi's i should put in my skinny-tyre cbr125 for a trackday? (for a mint day and/or a rainy one). on the factory sticker it says 29 front and 33 rear.
i was thinkin just 28/32 cos i wont be thrashing the tits too much off it on my first trackday i have to be able to ride back home...

thanks dudes

[malcy25]

I'd be going lower yet.

When I raced 125's on treads and slicks in the early 80's to mid 90's on both 17 and 18 inch rim's I was down at 21 front and 23 rear (18 cross ply) or 21 and 25 (17 radials).

I'd probably start at something like 25 front and 28 rear and do a session have a look. Buya tyre guage and see what sort of pressure increase you get.

Stop at the garage on the way home and pump them back up again.

I guess a few of people here who have raced RG150's etc will have a good idea also.

[prettybillie]

I've got my first track day on Sunday - can someone answer the same question for me and m GSXR 600?????

[Cajun]

I've got my first track day on Sunday - can someone answer the same question for me and m GSXR 600?????

what tires are you running

weather for sunday doesn't look the best, so would only drop them a few psi from your normal road pressure and go from there.
on mine normal run 36/36 front rear road, down to 33/33 track on the pilot powers.

[rina]

sweet yeah 25 28 sounds alright ill see how i go. cheers

[puddy]

I've got my first track day on Sunday - can someone answer the same question for me and m GSXR 600?????

What? Won't Marcus give you any advice? Miserable prick!

[FROSTY:Me]

dunno if my limited experience means much but my oipinion- FIRST time out dont fark with stock settings
. In other words .
Do what you already know works for you on the road dont bugger with your head worrying about supeflous shite.
Unless you are a budding Mr Rossi then your first time on the track is going to be a whirl of sensory imputs. adding another element just aint worth the trouble.
When ya have done a lap or two then lets talk
That said ---given the chance have a natter on the day to one of the 150SS racers. Their bikes are the closest power/weight wise to yours that are likely to be out there. They are going to be able to offer you a heck of a lot of advice about pressures and suspension settings and other stuff.

[Cr1MiNaL]

hey im just wonderin if anyone would know how many psi's i should put in my skinny-tyre cbr125 for a trackday? (for a mint day and/or a rainy one). on the factory sticker it says 29 front and 33 rear.
i was thinkin just 28/32 cos i wont be thrashing the tits too much off it on my first trackday i have to be able to ride back home...

thanks dudes

These guys will tell ya what pressures etc to run... All I'll say is clutch the shite outa it on the back straight babe I wanna see some air