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post #9 of (permalink) Old 05-11-2019, 12:10 PM
esq'z me
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Quote:
Originally Posted by Black_Gold_Saw View Post
Are these tyre pressures based on being able to lean the bike over to the very edge of the tyre when cold?(scrubbing tyre to the edge) Say a 50-70 degree fahrenheit day

For example: can I practice my "knee down"/"steeper lean angle" skills on a parking lot with cold tyres at 2.4 & 2.8 bar.
Or is it recommended to lower the pressure?

Might sound stupid, but on a race track you obviously put a lower amount of pressure in that automaticly build up when tyre heats up and gets stickier.
I used to take my 910R to a subdivision in construction to "practice". Lots had been laid out, infrastructure done and roads paved, but no houses in construction. It sat basically abandoned for a year or longer while the builder found financing. (mortgage/housing crisis years)

2 large roundabouts and a several bending/straight roads off the main highway. I would ride past the barricade and play......

Toes scraping the pavement and tires to the edge (I only ever get my knee down on a track...old school body position on the street...no hanging off).....OEM Diablo Corsa tires at spec (33-33)....

I have ridden in the North Georgia mountains at speed and scuffed my tires to the edge, looking just like I had been on a track....at spec pressures (33-33).

The key is, on the track you maintain higher temps longer than possible on the street. Hence increased pressure build up and need to lower cold pressure.

When I ride on the street I run what the book says. Bike handles well and tires last as long as can be expected.

Run what the book says.

I used to be fast....now I just dream about it.
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'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit), '71 CB100 (Lil' Red), '75 RD350C (Orange Bird) restoration project, '70 Suzuki F50 (Baby Blue)
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