HEADSET	Threaded or Threadless	Sizes	Built-In Head lock	Needle Roller Bearing	Sealed Cartridge Bearing	Anti-Dirt O-Ring Seals	Stack Height	Headlock Wrench Width	Upper Cup Wrench Width	Colors	Weight	Price
American Classic Trilock	Threaded	1" - 1 1/8" - 1 1/4"	yes	no	yes	yes	33mm to 36mm	32mm - 36mm - 40mm	32mm - 36mm - 40mm	Black, Silver	97.5 g. - 1 " -         g. -1 1/8" 	$  94.99 - $104.99
American Classic Trilock Threadless	Threadless	1 1/8"	not needed	no	yes	yes	33mm to 36mm	-	-	Black, Silver	g.	$104.99
Campagnolo Record	Threaded	1"	no	yes	no	yes	40.5 mm	32mm	32mm	Silver	148 g.	$ 74.99
Campagnolo Chorus	Threaded	1"	no	yes	no	yes	40.5 mm	32mm	32mm	Silver	149.5g.	$ 41.99
Dia Compe Kontak ST AheadSet	Threadless	1" - 1 1/8"	no	no	no	no	27.5mm - 28.0mm	-	-	Black	116.5 g. - 1" - 139 g. -1 1/8 "	$  24.99 - $  24.99
Dia Compe Kontak SA Aheadset	Threadless	1" - 1 1/8" - 1 1/4"	no	no	no	yes	27.5mm - 27.5mm - 28.7mm	-	-	Black	 - 1" 
 -  120 g. - 1 1/8" - 137 g. - 1 1/4"	$ 32.99
Dia Compe Kontak AL Aheadset	Threadless	1" - 1 1/8"	no	no	no	yes	26.0mm - 27.1mm	-	-	Black, Silver	 - 1"  -   120 g. - 1 1/8"	$ 39.99
Dia Compe AheadSet DL	Threadless	1" - 1 1/8" - 1 1/4"	no	no	no	yes	24.9mm - 26.5mm - 29.4mm	-	-	Black, Silver	 g. - 1" - 118.5 g. -1 1/8" - 147 g. -1 1/4"	$  43.99 - $  49.99 - $  49.99
Dia Compe Cane Creek Aheadset	Threadless	1" - 1 1/8" - 1 1/4"	no	no	yes	yes	29.0mm - 27.8mm - 28.6mm	-	-	Black, Silver	116 g. - 1" - 144.5 g. -1 1/8" - 138 g. -1 1/4"	$ 74.99 - $ 89.99 - $ 89.99
Dia Compe Threadhead	Threaded	1"	yes	no	yes	yes	29.0mm	32mm	32mm	Black, Silver	118.5 g. - 1"	$ 84.99
King Cycle Grip Nut	Threaded	1" - 1 1/8" - 1 1/4"	yes	no	yes	yes	    1" - 33/38mm - 1 1/8"-34/39mm - 1 1/4"-34/39mm	32mm - 36mm - 40mm	32mm - 36mm - 40mm	Blue, Black, Gold, Green, Purple,Red, Silver	1" - 93.5 g. - 1 1/8" - 109.5g. - 1 1/4" - 128g.	$  98.99 - $113.99 - $113.99
King Cycle "No Thread"	Threadless	1" - 1 1/8" - 1 1/4"	no	no	yes	yes	          1" - 28mm  - 1 1/8" - 31.5mm - 1 1/4" - 31.5mm	-	-	Blue, Black, Gold, Green, Purple,Red, Silver	1" - 109.5 g. - 1 1/8" - 125 g. - 1 1/4" - 143.5g.	$104.99 $119.99 $119.99
King Cycle Grip Nut Titanium	Threaded	1" - 1 1/8"	yes	no	yes	yes	    1" - 33/38mm - 1 1/8"-34/39mm	32mm - 36mm - 40mm	32mm - 36mm - 40mm	Titanium Grey	-	$159.99
King Cycle "No Thread" Titanium	Threadless	1" - 1 1/8"	no	no	yes	yes	         1" - 28mm  - 1 1/8" - 31.5mm	-	-	Titanium Grey	100.5 g. - 1"	$159.99
Odyssey Toro Pro	Threaded	1" - 1 1/8"	yes	yes	no	yes	33.5mm - 33.5mm	32mm - 36mm	32mm - 36mm	Blue, Black, Purple, Silver	100.5 g. - 1" - 114.5 g. -1 1/8"	$  34.99 - $  38.99
Onza Mongo II	Threaded	1" - 1 1/8" - 1 1/4"	yes	yes	no	yes	40.0mm - 39.7mm - 38.8mm	32mm - 36mm - 40mm	32mm - 36mm - 40mm	Black, Silver	116.5 g. - 1" - 113 g. - 1 1/8" - 125.5 g.-1 1/4"	$  54.99 - $  64.99 - $  64.99
Race Face Real Seal Threaded	Threaded	1 1/8"					36.5mm	36mm	36mm	Blue, Black, Gold, Green, Grey, Red, Purple, Silver	-	$ 79.99
Race Face Real Seal Threadless	Threadless	1 1/8"	no	no	yes	yes	31.5mm	-	-	Blue, Black, Gold, Green, Grey, Red,Purple, Silver	156g - 1 1/8"	$ 79.99
Ritchey Logic Expert	Threaded	1" - 1 1/8" - 1 1/4"	no	no	no	yes	 38.6mm - 40.2mm - 37.3mm	32mm - 36mm - 40mm	32mm - 36mm - 40mm	Silver	132 g. - 1 " - 153.5 g.-1 1/8 - 146.5 g. -1 1/4"	$  23.99 - $  23.99 - $  23.99
Ritchey  Logic Comp	Threaded	1"	no	no	no	yes	37.9mm	32mm	32mm	Black	115.5 grams	$ 28.99
Ritchey Logic Pro WCS	Threaded	1" - 1 1/8"	no	Yes	no	yes	1 1/8" - 36mm	32mm - 36mm	32mm - 36mm	Silver	1 1/8" - 102g.	$ 56.99
Ritchey Fuzzy Logic	Threadless	1" - 1 1/8"	no	Yes - Lower	no	yes	1" -  1 1/8" - 34mm	-	-	Silver	1 1/8" 111 g.	$ 38.99 - $ 43.99 
Ritchey Logic	Threadless	1" - 1 1/8"	no	no	no	yes	-	-	-	Silver	-	$ 23.99