I think my tires are Sparking --

This is the front tire on a YF450Fsm a Bridgestone BT 016f and same on the rear -
steel cord is showing same amount on both sides of front tire -
On the rear tire the steel cord has not worn threw but I figure it one hour left in it-
I use the front brake only 90% of the time and usually just use engine breaking
for rear --

On my YZ250F I have Michelin Pilot Powers and they are about 50%
worn out with same amount of hours --Pilot Powers stick as Good or Better than the
Bridgstone BT -016 - the PPs is whats going on the 450 now-

One thing I did notice is the BT-016 left much darker skid marks in the turns
on Hot days than PP and got the Grease feeling in the turns more than the PP-
--Jay--