NL100 KK valuebet question

[xeanatic]

Villian is your tipical 40/6/1
My question is pretty simple: shove the river or bet it smaller?

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $170.15
Hero (CO): $107.20
BTN: $111.70
SB: $55.95
BB: $124.95
UTG: $126.10

Pre-Flop: K[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/heart.gif[/img] dealt to Hero (CO)
UTG folds, <font color="red">MP raises to $4</font>, <font color="red">Hero raises to $14</font>, 3 folds, MP calls $10

Flop: ($29.50) 5[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] (2 Players)
MP checks, Hero checks

Turn: ($29.50) T[img]/images/graemlins/club.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $20</font>, MP calls $20

River: ($69.50) 7[img]/images/graemlins/heart.gif[/img] (2 Players)
MP checks, <font color="red">Hero