Even without disks its a good idea ta check your bike after a pine needle ride. But what a ride. Although at times kinda slippery our single track through the pine trees was nice, soft, and quiet.
I miss them as they are no longer around. They were destroyed by ebike riders trying to play like dirt bike riders (motorcycle) and now they belong to dirt bikes only...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)