50nl common AK situation

[blackize]

No reads on the shorty but this type of thing keeps coming up. A lot of the time against a bigger stack I'll raise these donk leads, but any raise commits me to calling a shove. Standard to just let it go with no pair no draw in these spots?

Full Tilt Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $18.25
BB: $36.95
UTG: $15.25
MP: $22.75
Hero (CO): $60.70
BTN: $6.55

Preflop: Hero is dealt A[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] (6 Players)
2 folds, <font color="red">Hero raises to $2.00</font>, BTN folds, SB calls $1.75, BB folds

Flop: ($4.50) 2[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $2.50</font>, Hero folds
Uncalled bet of $2.50 returned to SB

Pot Size: $4.50 ($0.20 Rake)

Edit: DAMN YOU NEIL DEWHURST