Easy as toast... just like old car brakes... (only smaller, with easier springs)..
... but,.. if yours are worn out, you're using them too much.
I got 27k on mine and the rear brakes are like new... most of your stopping power is in the front.
My buddy Gerry has 40k+ with original rear shoes...
They should outlast the bike...
...
Wheel alignment ... use the notches on the adjuster to get close, then put a yardstick along the tire to see that it runs parallel with the belt/beltguard... close enough, is close enough, it ain't that critical...
Belt tightness should be, not floppy, not tight... if you can twist the belt at midway 90' with your thumb and forefinger it's just dandy...
People worry too much...
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