2\4 Bet river or not?

[truekornfan]

I do not meet this villain before but his stats are 17\13 and oo\oo\o AF factir during 70 hands.

iPoker No-Limit Texas Hold'em (NL400), $4.00 BB (5 handed) SB ($396)
BB($432.5)
MP3 ($394)
CO ($591.7)
Hero($404)

SB: Post SB $2.00
BB: Post BB $4.00

Preflop:
Hero is Button with J[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img]
<font color="#666666">2 folds</font>
<font color="#CC2222">Hero Raise $14</font>
<font color="#666666">1 folds</font>
BB Call $10

Flop:($30) 9[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img]<font color="#0030DD">(2 players)</font>
BB Check
<font color="#CC2222">Hero Bet $20</font>
<font color="#CC2222">BB Raise $60</font>
Hero Call $40

Turn:($150) Q[img]/images/graemlins/spade.gif[/img]<font color="#0030DD">(2 players)</font>
BB Check
Hero Check

River:($150) 4[img]/images/graemlins/club.gif[/img]<font color="#0030DD">(2 players)</font>
BB Check
Hero ???

[-DT-]

i usually check without history

[SluggishJ82]

check

[Barrin6]

I fail to see how we are behind here on the river. why not do a thin value bet?

[FionnMac]

bet small/call raise. $40-50

[Curse]

If you do make the value bet, which looks ok, I would not call a raise.

[Yeti]

bet 90

[-DT-]

[ QUOTE ]
I fail to see how we are behind here on the river. why not do a thin value bet?

[/ QUOTE ]

i guess you could do a smallish bet but his stats and AF lead me to believe his range is pretty polarized between air and hands that have us slightly beat