Tire 241 Series Front/Rear 3.50 19 57p Bias Tt

A versatile performer with a tough nylon carcass and raised dimpled knobs that work well in a variety of terrain.
Features:

• Narrow knobby configuration means less of an environmental foot print on the trail


• 4 ply rated


• DOT approved


• Not intended for extended highway use


• All sizes will work for front or rear fitment


• *GOLDEN BOY*

Designed To Fit:
1978 Yamaha SR500
1979 Yamaha SR500
1980 Yamaha SR500
1981 Yamaha SR500
1982 Honda CR125R
1983 Honda CR125R
1984 Honda CR125R
1985 Honda CR125R
1986 Honda CR125R
1987 Honda CR125R
1987 Kawasaki KX80 Big Wheel
1988 Honda CR125R
1988 Kawasaki KX80 Big Wheel
1989 Honda CR125R
1989 Kawasaki KX250
1989 Kawasaki KX500
1989 Kawasaki KX80 Big Wheel
1989 Yamaha YZ125
1989 Yamaha YZ250
1990 Honda CR125R
1990 Kawasaki KX125
1990 Kawasaki KX250
1990 Kawasaki KX500
1990 Kawasaki KX80 Big Wheel
1990 Suzuki RM125
1990 Yamaha YZ125
1990 Yamaha YZ250
1991 Honda CR125R
1991 Kawasaki KX125
1991 Kawasaki KX250
1991 Kawasaki KX500
1991 Kawasaki KX80 Big Wheel
1991 Suzuki RM125
1991 Yamaha YZ125
1991 Yamaha YZ250
1992 Honda CR125R
1992 Kawasaki KX125
1992 Kawasaki KX250
1992 Kawasaki KX500
1992 Kawasaki KX80 Big Wheel
1992 KTM 125 SX
1992 KTM 250 SX
1992 KTM 300 SX
1992 KTM 500 SX
1992 Suzuki RM125
1992 Suzuki RM250
1992 Yamaha YZ125
1992 Yamaha YZ250
1993 Honda CR125R
1993 Kawasaki KX125
1993 Kawasaki KX250
1993 Kawasaki KX500
1993 Kawasaki KX80 Big Wheel
1993 KTM 125 SX
1993 KTM 250 SX
1993 KTM 300 SX
1993 KTM 500 SX
1993 Suzuki RM125
1993 Suzuki RM250
1993 Yamaha YZ125
1993 Yamaha YZ250
1994 Honda CR125R
1994 Kawasaki KX125
1994 Kawasaki KX250
1994 Kawasaki KX500
1994 Kawasaki KX80 Big Wheel
1994 KTM 125 SX
1994 KTM 250 SX
1994 KTM 300 SX
1994 KTM 440 Sx
1994 Suzuki RM125
1994 Suzuki RM250
1994 Yamaha YZ125
1994 Yamaha YZ250
1995 Honda CR125R
1995 Honda CR250R
1995 Kawasaki KX125
1995 Kawasaki KX250
1995 Kawasaki KX500
1995 KTM 125 SX
1995 KTM 250 SX
1995 KTM 300 SX
1995 Suzuki RM125
1995 Suzuki RM250
1995 TM MX 125 2T
1995 TM MX 250 2T
1995 Yamaha YZ125
1995 Yamaha YZ250
1996 Honda CR125R
1996 Honda CR250R
1996 Kawasaki KX125
1996 Kawasaki KX250
1996 Kawasaki KX500
1996 KTM 125 SX
1996 KTM 250 SX
1996 KTM 300 SX
1996 KTM 360 Sx
1996 KTM 620 Sx
1996 Suzuki RM125
1996 Suzuki RM250
1996 TM MX 125 2T
1996 TM MX 250 2T
1996 Yamaha YZ125
1996 Yamaha YZ250
1997 Honda CR125R
1997 Honda CR250R
1997 Kawasaki KX125
1997 Kawasaki KX250
1997 Kawasaki KX500
1997 KTM 125 SX
1997 KTM 250 SX
1997 KTM 360 Sx
1997 KTM 620 SX 4-Stroke
1997 Suzuki RM125
1997 Suzuki RM250
1997 TM MX 125 2T
1997 TM MX 250 2T
1997 Yamaha YZ125
1997 Yamaha YZ250
1998 Honda CR125R
1998 Honda CR250R
1998 Husqvarna CR125
1998 Kawasaki KX125
1998 Kawasaki KX250
1998 Kawasaki KX500
1998 KTM 125 SX
1998 KTM 200 Sx
1998 KTM 250 SX
1998 KTM 380 Sx
1998 KTM 400 SX 4-Stroke
1998 KTM 620 Sx
1998 Suzuki RM125
1998 Suzuki RM250
1998 TM MX 125 2T
1998 TM MX 250 2T
1998 TM MX 300
1998 Yamaha YZ125
1998 Yamaha YZ250
1998 Yamaha YZ400F
1999 Honda CR125R
1999 Honda CR250R
1999 Husqvarna CR125
1999 Kawasaki KX125
1999 Kawasaki KX250
1999 Kawasaki KX500
1999 KTM 125 SX
1999 KTM 200 Sx
1999 KTM 250 SX
1999 KTM 380 Sx
1999 KTM 620 Sx
1999 Suzuki RM125
1999 Suzuki RM250
1999 TM MX 125 2T
1999 TM MX 250 2T
1999 TM MX 300
1999 Yamaha YZ125
1999 Yamaha YZ250
1999 Yamaha YZ400F
2000 Honda CR125R
2000 Honda CR250R
2000 Husqvarna CR125
2000 Kawasaki KX100
2000 Kawasaki KX125
2000 Kawasaki KX250
2000 Kawasaki KX500
2000 KTM 125 SX
2000 KTM 125 SXS
2000 KTM 200 Sx
2000 KTM 250 SX
2000 KTM 250 SXS
2000 KTM 380 Sx
2000 KTM 520 SX 4-Stroke
2000 Suzuki RM125
2000 Suzuki RM250
2000 TM MX 125 2T
2000 TM MX 250 2T
2000 TM MX 300
2000 Yamaha TT-R125L
2000 Yamaha YZ125
2000 Yamaha YZ250
2000 Yamaha YZ426F
2001 Honda CR125R
2001 Honda CR250R
2001 Husqvarna CR125
2001 Kawasaki KX100
2001 Kawasaki KX125
2001 Kawasaki KX250
2001 Kawasaki KX500
2001 KTM 125 SX
2001 KTM 125 SXS
2001 KTM 200 Sx
2001 KTM 250 SX
2001 KTM 250 SXS
2001 KTM 380 Sx
2001 KTM 520 SX 4-Stroke
2001 Suzuki RM125
2001 Suzuki RM250
2001 TM MX 125
2001 TM MX 250 2T
2001 TM MX 300
2001 Yamaha TT-R125L
2001 Yamaha YZ125
2001 Yamaha YZ250
2001 Yamaha YZ250F
2001 Yamaha YZ426F
2002 Honda CR125R
2002 Honda CR250R
2002 Honda CRF450R
2002 Husqvarna CR125
2002 Husqvarna CR250
2002 Husqvarna TC 250
2002 Kawasaki KX100
2002 Kawasaki KX125
2002 Kawasaki KX250
2002 Kawasaki KX500
2002 KTM 125 SX
2002 KTM 125 SXS
2002 KTM 200 Sx
2002 KTM 250 SX
2002 KTM 250 SXS
2002 KTM 380 Sx
2002 KTM 520 SX 4-Stroke
2002 Suzuki RM125
2002 Suzuki RM250
2002 TM MX 125 2T
2002 TM MX 250 2T
2002 TM MX 300
2002 Yamaha TT-R125L
2002 Yamaha YZ125
2002 Yamaha YZ250
2002 Yamaha YZ250F
2002 Yamaha YZ426F
2003 Honda CR125R
2003 Honda CR250R
2003 Honda CR85RB Expert
2003 Honda CRF150F
2003 Honda CRF450R
2003 Husqvarna CR125
2003 Husqvarna CR250
2003 Husqvarna TC 250
2003 Kawasaki KLX125L
2003 Kawasaki KX100
2003 Kawasaki KX125
2003 Kawasaki KX250
2003 Kawasaki KX500
2003 KTM 125 SX
2003 KTM 125 SXS
2003 KTM 200 Sx
2003 KTM 250 SX
2003 KTM 250 SXS
2003 KTM 450 SX-F
2003 KTM 450 SXS 4-Stroke
2003 KTM 525 SX 4-Stroke
2003 Suzuki DR-Z125L
2003 Suzuki RM125
2003 Suzuki RM250
2003 Suzuki RM85L
2003 TM MX 125 2T
2003 TM MX 250 2T
2003 TM MX 300
2003 Yamaha TT-R125L
2003 Yamaha TT-R125LE
2003 Yamaha YZ125
2003 Yamaha YZ250
2003 Yamaha YZ250F
2003 Yamaha YZ450F
2004 Honda CR125R
2004 Honda CR250R
2004 Honda CR85RB Expert
2004 Honda CRF100F
2004 Honda CRF150F
2004 Honda CRF250R
2004 Honda CRF450R
2004 Husqvarna CR125
2004 Husqvarna CR250
2004 Husqvarna TC 250
2004 Husqvarna TC 510
2004 Kawasaki KLX125L
2004 Kawasaki KX100
2004 Kawasaki KX125
2004 Kawasaki KX250
2004 Kawasaki KX250F
2004 Kawasaki KX500
2004 KTM 105 SX
2004 KTM 125 SX
2004 KTM 125 SXS
2004 KTM 200 Sx
2004 KTM 250 SX
2004 KTM 250 SXS
2004 KTM 450 SX-F
2004 KTM 450 SXS 4-Stroke
2004 KTM 525 SX 4-Stroke
2004 Suzuki DR-Z125L
2004 Suzuki RM-Z250
2004 Suzuki RM125
2004 Suzuki RM250
2004 Suzuki RM85L
2004 TM MX 125 2T
2004 TM MX 250 2T
2004 TM MX 450 4T
2004 Yamaha TT-R125L
2004 Yamaha TT-R125LE
2004 Yamaha YZ125
2004 Yamaha YZ250
2004 Yamaha YZ250F
2004 Yamaha YZ450F
2005 Honda CR125R
2005 Honda CR250R
2005 Honda CR85RB Expert
2005 Honda CRF100F
2005 Honda CRF150F
2005 Honda CRF250R
2005 Honda CRF450R
2005 Husqvarna CR125
2005 Husqvarna CR250
2005 Husqvarna TC 250
2005 Husqvarna TC 510
2005 Kawasaki KLX125L
2005 Kawasaki KX100
2005 Kawasaki KX125
2005 Kawasaki KX250
2005 Kawasaki KX250F
2005 KTM 105 SX
2005 KTM 125 SX
2005 KTM 125 SXS
2005 KTM 250 SX
2005 KTM 250 SX-F
2005 KTM 250 SXS
2005 KTM 450 SX-F
2005 KTM 450 SXS 4-Stroke
2005 KTM 525 SX 4-Stroke
2005 KTM 85 SX (19/16)
2005 Suzuki DR-Z125L
2005 Suzuki RM-Z250
2005 Suzuki RM-Z450
2005 Suzuki RM125
2005 Suzuki RM250
2005 Suzuki RM85L
2005 TM MX 125 2T
2005 TM MX 250 2T
2005 TM MX 450 4T
2005 TM MX 530 4T
2005 Yamaha TT-R125L
2005 Yamaha TT-R125LE
2005 Yamaha YZ125
2005 Yamaha YZ250
2005 Yamaha YZ250F
2005 Yamaha YZ450F
2006 Honda CR125R
2006 Honda CR250R
2006 Honda CR85RB Expert
2006 Honda CRF100F
2006 Honda CRF150F
2006 Honda CRF250R
2006 Honda CRF450R
2006 Husqvarna CR125
2006 Husqvarna TC 250
2006 Husqvarna TC 510
2006 Kawasaki KLX125L
2006 Kawasaki KX100
2006 Kawasaki KX250
2006 Kawasaki KX250F
2006 Kawasaki KX450F
2006 KTM 105 SX
2006 KTM 125 SX
2006 KTM 125 SXS
2006 KTM 250 SX
2006 KTM 250 SX-F
2006 KTM 250 SXS
2006 KTM 250 SXS-F
2006 KTM 450 SX-F
2006 KTM 450 SXS 4-Stroke
2006 KTM 525 SX 4-Stroke
2006 KTM 85 SX (19/16)
2006 Suzuki DR-Z125L
2006 Suzuki RM-Z250
2006 Suzuki RM-Z450
2006 Suzuki RM125
2006 Suzuki RM250
2006 Suzuki RM85L
2006 TM MX 125 2T
2006 TM MX 250
2006 TM MX 450 4T
2006 TM MX 530 4T
2006 Yamaha TT-R125L
2006 Yamaha TT-R125LE
2006 Yamaha YZ125
2006 Yamaha YZ250
2006 Yamaha YZ250F
2006 Yamaha YZ450F
2007 Honda CR125R
2007 Honda CR250R
2007 Honda CR85RB Expert
2007 Honda CRF100F
2007 Honda CRF150F
2007 Honda CRF150RB Expert
2007 Honda CRF250R
2007 Honda CRF450R
2007 Husqvarna CR125
2007 Husqvarna TC 250
2007 Husqvarna TC 510
2007 Kawasaki KX100
2007 Kawasaki KX250
2007 Kawasaki KX250F
2007 Kawasaki KX450F
2007 KTM 105 SX
2007 KTM 125 SX
2007 KTM 125 SXS
2007 KTM 144 Sx
2007 KTM 250 SX
2007 KTM 250 SX-F
2007 KTM 250 SXS
2007 KTM 250 SXS-F
2007 KTM 450 SX-F
2007 KTM 450 SXS 4-Stroke
2007 KTM 85 SX (19/16)
2007 Suzuki DR-Z125L
2007 Suzuki RM-Z250
2007 Suzuki RM-Z450
2007 Suzuki RM125
2007 Suzuki RM250
2007 Suzuki RM85L
2007 TM MX 125 2T
2007 TM MX 250 2T
2007 TM MX 450 4T
2007 TM MX 530F
2007 Yamaha TT-R125L
2007 Yamaha TT-R125LE
2007 Yamaha YZ125
2007 Yamaha YZ250
2007 Yamaha YZ250F
2007 Yamaha YZ450F
2008 Honda CRF100F
2008 Honda CRF150F
2008 Honda CRF150RB Expert
2008 Honda CRF250R
2008 Honda CRF450R
2008 Husqvarna CR125
2008 Husqvarna TC 250
2008 Husqvarna TC 510
2008 Kawasaki KLX140L
2008 Kawasaki KX100
2008 Kawasaki KX250F
2008 Kawasaki KX450F
2008 KTM 105 SX
2008 KTM 105 XC
2008 KTM 125 SX
2008 KTM 125 SXS
2008 KTM 144 Sx
2008 KTM 150 SX
2008 KTM 250 SX
2008 KTM 250 SX-F
2008 KTM 250 SXS-F
2008 KTM 450 SX-F
2008 KTM 450 SXS 4-Stroke
2008 KTM 505 Sx-F
2008 KTM 85 SX (19/16)
2008 Suzuki DR-Z125L
2008 Suzuki RM-Z250
2008 Suzuki RM-Z450
2008 Suzuki RM250
2008 Suzuki RM85L
2008 TM MX 125 2T
2008 TM MX 144 2T
2008 TM MX 250 2T
2008 TM MX 300
2008 TM MX 450 4T
2008 TM MX 530F
2008 Yamaha TT-R125L
2008 Yamaha TT-R125LE
2008 Yamaha YZ125
2008 Yamaha YZ250
2008 Yamaha YZ250F
2008 Yamaha YZ450F
2009 Honda CRF100F
2009 Honda CRF150F
2009 Honda CRF150RB Expert
2009 Honda CRF250R
2009 Honda CRF450R
2009 Husqvarna CR125
2009 Husqvarna TC 250
2009 Husqvarna TC 510
2009 Kawasaki KLX140L
2009 Kawasaki KX100
2009 Kawasaki KX250F
2009 Kawasaki KX450F
2009 KTM 105 SX
2009 KTM 105 XC
2009 KTM 125 SX
2009 KTM 150 SX
2009 KTM 250 SX
2009 KTM 250 SX-F
2009 KTM 450 SX-F
2009 KTM 85 SX (19/16)
2009 Suzuki DR-Z125L
2009 Suzuki RM-Z250
2009 Suzuki RM-Z450
2009 TM MX 250 TPI 2T
2009 Yamaha TT-R125LE
2009 Yamaha YZ125
2009 Yamaha YZ250
2009 Yamaha YZ250F
2009 Yamaha YZ450F
2010 Honda CRF250R
2010 Honda CRF450R
2010 Husaberg Fx450
2010 Husqvarna CR125
2010 Husqvarna TC 250
2010 Kawasaki KX250F
2010 Kawasaki KX450F
2010 KTM 105 SX
2010 KTM 105 XC
2010 KTM 125 SX
2010 KTM 150 SX
2010 KTM 250 SX
2010 KTM 250 SX-F
2010 KTM 450 SX-F
2010 KTM 85 SX (19/16)
2010 Suzuki RM-Z250
2010 Suzuki RM-Z450
2010 Yamaha YZ125
2010 Yamaha YZ250
2010 Yamaha YZ250F
2010 Yamaha YZ450F
2011 Honda CRF100F
2011 Honda CRF250R
2011 Honda CRF450R
2011 Husaberg Fx450
2011 Husqvarna CR150
2011 Husqvarna TC 250
2011 Husqvarna TC 449
2011 Kawasaki KLX140L
2011 Kawasaki KX100
2011 Kawasaki KX250F
2011 Kawasaki KX450F
2011 KTM 105 SX
2011 KTM 125 SX
2011 KTM 150 SX
2011 KTM 250 SX
2011 KTM 250 SX-F
2011 KTM 350 SX-F
2011 KTM 450 SX-F
2011 Suzuki RM-Z250
2011 Suzuki RM-Z450
2011 Yamaha TT-R125LE
2011 Yamaha YZ125
2011 Yamaha YZ250
2011 Yamaha YZ250F
2011 Yamaha YZ450F
2012 Honda CRF100F
2012 Honda CRF150F
2012 Honda CRF150RB Expert
2012 Honda CRF250R
2012 Honda CRF450R
2012 Husaberg Fx450
2012 Husqvarna CR125
2012 Husqvarna TC 250
2012 Husqvarna TC 310
2012 Husqvarna TC 449
2012 Kawasaki KLX140L
2012 Kawasaki KX100
2012 Kawasaki KX250F
2012 Kawasaki KX450F
2012 KTM 125 SX
2012 KTM 150 SX
2012 KTM 250 SX
2012 KTM 250 SX-F
2012 KTM 350 SX-F
2012 KTM 450 SX-F
2012 KTM 450 SX-F Factory Edition
2012 Suzuki DR-Z125L
2012 Suzuki RM-Z250
2012 Suzuki RM-Z450
2012 Suzuki RM85L
2012 Yamaha TT-R125LE
2012 Yamaha YZ125
2012 Yamaha YZ250
2012 Yamaha YZ250F
2012 Yamaha YZ450F
2013 Honda CRF100F
2013 Honda CRF150F
2013 Honda CRF150RB Expert
2013 Honda CRF250R
2013 Honda CRF450R
2013 Husqvarna CR125
2013 Husqvarna TC 250R
2013 Husqvarna TC 449
2013 Kawasaki KLX140L
2013 Kawasaki KX100
2013 Kawasaki KX250F
2013 Kawasaki KX450F
2013 KTM 125 SX
2013 KTM 150 SX
2013 KTM 250 SX
2013 KTM 250 SX-F
2013 KTM 350 SX-F
2013 KTM 450 SX-F
2013 KTM 450 SX-F Factory Edition
2013 KTM 85 SX (19/16)
2013 Suzuki DR-Z125L
2013 Suzuki RM-Z250
2013 Suzuki RM-Z450
2013 Yamaha TT-R125LE
2013 Yamaha YZ125
2013 Yamaha YZ250
2013 Yamaha YZ250F
2013 Yamaha YZ450F
2014 Honda CRF125FB
2014 Honda CRF150F
2014 Honda CRF150RB Expert
2014 Honda CRF250R
2014 Honda CRF450R
2014 Husqvarna FC 250
2014 Husqvarna FC 350
2014 Husqvarna FC 450
2014 Husqvarna TC 125
2014 Husqvarna TC 250
2014 Kawasaki KLX140L
2014 Kawasaki KX100
2014 Kawasaki KX250F
2014 Kawasaki KX450F
2014 KTM 125 SX
2014 KTM 150 SX
2014 KTM 250 SX
2014 KTM 250 SX-F
2014 KTM 350 SX-F
2014 KTM 450 SX-F
2014 KTM 450 SX-F Factory Edition
2014 KTM 85 SX (19/16)
2014 Suzuki DR-Z125L
2014 Suzuki RM-Z250
2014 Suzuki RM-Z450
2014 Yamaha TT-R125LE
2014 Yamaha YZ125
2014 Yamaha YZ250
2014 Yamaha YZ250F
2014 Yamaha YZ450F
2015 Honda CRF125FB
2015 Honda CRF150F
2015 Honda CRF150RB Expert
2015 Honda CRF250R
2015 Honda CRF450R
2015 Husqvarna FC 250
2015 Husqvarna FC 350
2015 Husqvarna FC 450
2015 Husqvarna TC 125
2015 Husqvarna TC 250
2015 Kawasaki KLX140L
2015 Kawasaki KX100
2015 Kawasaki KX250F
2015 Kawasaki KX450F
2015 KTM 125 SX
2015 KTM 150 SX
2015 KTM 250 SX
2015 KTM 250 SX-F
2015 KTM 250 SX-F Factory Edition
2015 KTM 350 SX-F
2015 KTM 450 SX-F
2015 KTM 450 SX-F Factory Edition
2015 KTM 85 SX (19/16)
2015 Suzuki DR-Z125L
2015 Suzuki RM-Z250
2015 Suzuki RM-Z450
2015 Yamaha TT-R125LE
2015 Yamaha YZ125
2015 Yamaha YZ250
2015 Yamaha YZ250F
2015 Yamaha YZ450F
2016 Honda CRF125FB
2016 Honda CRF150F
2016 Honda CRF150RB Expert
2016 Honda CRF250R
2016 Honda CRF450R
2016 Husqvarna FC 250
2016 Husqvarna FC 350
2016 Husqvarna FC 450
2016 Husqvarna TC 125
2016 Husqvarna TC 250
2016 Kawasaki KLX140L
2016 Kawasaki KX100
2016 Kawasaki KX250F
2016 Kawasaki KX450F
2016 KTM 125 SX
2016 KTM 150 SX
2016 KTM 250 SX
2016 KTM 250 SX-F
2016 KTM 250 SX-F Factory Edition
2016 KTM 350 SX-F
2016 KTM 450 SX-F
2016 KTM 450 SX-F Factory Edition
2016 Suzuki DR-Z125L
2016 Suzuki RM-Z250
2016 Suzuki RM-Z450
2016 Yamaha TT-R125LE
2016 Yamaha YZ125
2016 Yamaha YZ250
2016 Yamaha YZ250F
2016 Yamaha YZ450F
2017 Alta Redshift MX
2017 Honda CRF250R
2017 Honda CRF450R
2017 Husqvarna FC 250
2017 Husqvarna FC 350
2017 Husqvarna FC 450
2017 Husqvarna TC 125
2017 Husqvarna TC 250
2017 Kawasaki KX250F
2017 Kawasaki KX450F
2017 KTM 125 SX
2017 KTM 150 SX
2017 KTM 250 SX
2017 KTM 250 SX-F
2017 KTM 250 SX-F Factory Edition
2017 KTM 350 SX-F
2017 KTM 450 SX-F
2017 KTM 450 SX-F Factory Edition
2017 Suzuki RM-Z250
2017 Suzuki RM-Z450
2017 TM MX 250 TPI 2T
2017 TM MX 300 FI 2T
2017 Yamaha YZ125
2017 Yamaha YZ250
2017 Yamaha YZ250F
2017 Yamaha YZ450F
2018 Alta Redshift MX
2018 Honda CRF250R
2018 Honda CRF450R
2018 Husqvarna FC 250
2018 Husqvarna FC 350
2018 Husqvarna FC 450
2018 Husqvarna TC 125
2018 Husqvarna TC 250
2018 Kawasaki KX250F
2018 Kawasaki KX450F
2018 KTM 125 SX
2018 KTM 150 SX
2018 KTM 250 SX
2018 KTM 250 SX-F
2018 KTM 350 SX-F
2018 KTM 450 SX-F
2018 Suzuki RM-Z250
2018 Suzuki RM-Z450
2018 TM MX 250 TPI 2T
2018 TM MX 300 FI 2T
2018 Yamaha YZ125
2018 Yamaha YZ250
2018 Yamaha YZ250F
2018 Yamaha YZ450F