XB4 '15 tyre wear

[Hans Wynants]

Hello , i have gone from the XB4 '14 tot the '15 last month .

i mainly drive on an astro track ( Orra in Arendonk Belgium) . fully out of astro . and when dry with Schumacher minispike Yellow.

with my old 2014 i can race my tyre's untill they are almonst completely gone. the front tyres would also wear faster than the rear tyres . still have plenty of grip to drive fairly good lap times. less steering obviously butt still ok. the only times i would get in trouble was when driving brand new tyres...


now the 2015 is way different. i drive the new car in shorty setup , with at the moment extra weight on the chassis , under the rear mid axle . the difference i feel directly is that the car drives better with brand new tyres , but as soon the tyres are worn like approx 60% , the grip will dissapear in the rear! the rear of the car will slide faster and the bite when on throttle is nog good anymore...

cane someone tell me what i am doing wrong?

my setup is pritty soft . needs to be for the bumpy astro.

thanks .

[BentKa]

Originally Posted by Hans Wynants

Hello , i have gone from the XB4 '14 tot the '15 last month .

i mainly drive on an astro track ( Orra in Arendonk Belgium) . fully out of astro . and when dry with Schumacher minispike Yellow.

with my old 2014 i can race my tyre's untill they are almonst completely gone. the front tyres would also wear faster than the rear tyres . still have plenty of grip to drive fairly good lap times. less steering obviously butt still ok. the only times i would get in trouble was when driving brand new tyres...


now the 2015 is way different. i drive the new car in shorty setup , with at the moment extra weight on the chassis , under the rear mid axle . the difference i feel directly is that the car drives better with brand new tyres , but as soon the tyres are worn like approx 60% , the grip will dissapear in the rear! the rear of the car will slide faster and the bite when on throttle is nog good anymore...

cane someone tell me what i am doing wrong?

my setup is pritty soft . needs to be for the bumpy astro.

thanks .

Post your setup and it will be easier to help you out

We run on astro using Mini Spike (control tires for the National Series) and Mini Pin as well and have never had any issues with the rear tires going bad before the fronts on either of the '13, '14 or '15 cars.

Bent

[dibble34]

I agree, if anything the tires are hanging on better with my 2015.

[Hans Wynants]

i hope the quality is a bit decent, i have pulled a print screen of the PDF file...

[Hans Wynants]

my car is completely in pieces at the moment, awainting for the 3mm chassis :-) so all the help is welcome.

[Hans Wynants]

maybe an important extra , i checked my diffs , becouse they are off the chassis anyway , and the rear diff was almost empty , i noticed in the race that i often had 'diff out' . maybe this had someting to do with the tyre wear , or the strange feeling off the tyres.