I'm 6'5 with a 32 inseam, I wanted to know if I need a 20 or 22in size?

Tech Specs:

Frame Material:

Kona Race Light Scandium 

Headset:

FSA 

Rear Axle:

135 x 10 mm 

Fork:

Fox 32 F29 

Front Travel:

100 mm 

Wheelset:

Easton EA70 XC Disc 

Front Derailleur:

SRAM X7 (triple) 

Front Derailleur Mount:

clamp 

Rear Derailleur:

SRAM X.9 (10-speed) 

Shifters:

SRAM X.9 

Crankset:

Truvativ X9 

Chain Rings:

44 x 33 x 22 t Truvativ 

Crank Arm Length:

(18 inch) 175 mm 

Pedals:

Shimano PD-M520 

Bottom Bracket:

TruVativ GXP 

Brake Levers:

Avid Elixir CR 

Brake Calipers:

Avid Elixir CR 

Rear Rotor:

160 mm 

Front Rotor:

185 mm 

Handlebar:

Kona flat 

Handlebar Width:

(18 inch) 710 mm 

Grips:

Kona LOG 

Stem:

Kona Aluminum 4-bolt 

Stem Length:

(16 inch) 90 mm, (18, 19 inch) 105 mm, (20, 22 inch) 120 mm 

Chain:

SRAM PC-1031 

Cassette:

SRAM PG 1050 

Sprocket Range:

12 x 36 t 

Tires:

Maxxis Aspen 

Tire Size:

29 x 2.1 in 

Valve Stem:

Presta 

Seatpost:

Kona Alloy 

Saddle:

WTB 

Cables / Housing:

Jagwire 

Weight:

(18 inch) 25 lb 12 oz 

Recommended Use:

XC racing, blasting singletrack, rolling over unbelievers 

Manufacturer Warranty:

limited lifetime