Opções
Marca
Modelo
Ano
Dentagem
Cremalheira Jt Husqvarna, Racestars Racing
Concebido por computador para obter resistência máxima com o mínimo de peso.
A JT combina tecnologia de ponta com os melhores materiais para produzir a roda dentada da melhor qualidade.
Cada pinhão atende ou excede os mais altos padrões de qualidade possíveis estabelecidos para a indústria de motociclos, tratadas termicamente e jatadas com areia para reduzir a tensão superficial do material.
Fabricadas com aço C45 e liga de aço cromo-lítico SCM415
Disponível em várias dimensões (número de dentes).
| Dentes | |
| 38 | |
| 40 | |
| 41 | |
| 42 | |
| 43 | |
| 44 | |
| 45 | |
| 46 | |
| 47 | |
| 48 | |
| 49 | |
| 50 | |
| 51 | |
| 52 | |
| 53 | |
| Fabricante | |
| JT SPROCKETS | |
| Tipo de Mota | |
| MX / ENDURO | |
| Mota | |
| HUSQVARNA 125 CR 1984 | |
| HUSQVARNA 125 CR 1985 | |
| HUSQVARNA 125 CR 1986 | |
| HUSQVARNA 125 CR 1987 | |
| HUSQVARNA 125 CR 1990 | |
| HUSQVARNA 125 CR 1991 | |
| HUSQVARNA 125 CR 1992 | |
| HUSQVARNA 125 CR 1993 | |
| HUSQVARNA 125 CR 1994 | |
| HUSQVARNA 125 CR 1995 | |
| HUSQVARNA 125 CR 1996 | |
| HUSQVARNA 125 CR 1997 | |
| HUSQVARNA 125 CR 1998 | |
| HUSQVARNA 125 CR 1999 | |
| HUSQVARNA 125 CR 2000 | |
| HUSQVARNA 125 CR 2001 | |
| HUSQVARNA 125 CR 2002 | |
| HUSQVARNA 125 CR 2003 | |
| HUSQVARNA 125 CR 2004 | |
| HUSQVARNA 125 CR 2005 | |
| HUSQVARNA 125 CR 2006 | |
| HUSQVARNA 125 CR 2007 | |
| HUSQVARNA 125 CR 2008 | |
| HUSQVARNA 125 CR 2009 | |
| HUSQVARNA 125 CR 2010 | |
| HUSQVARNA 125 CR 2011 | |
| HUSQVARNA 125 CR 2012 | |
| HUSQVARNA 125 SMS 1999 | |
| HUSQVARNA 125 SMS 2000 | |
| HUSQVARNA 125 SMS 2001 | |
| HUSQVARNA 125 SMS 2002 | |
| HUSQVARNA 125 SMS 2003 | |
| HUSQVARNA 125 SMS 2004 | |
| HUSQVARNA 125 SMS 2005 | |
| HUSQVARNA 125 SMS 2006 | |
| HUSQVARNA 125 SMS 2007 | |
| HUSQVARNA 125 SMS 2008 | |
| HUSQVARNA 125 SMS 2009 | |
| HUSQVARNA 125 SMS 2010 | |
| HUSQVARNA 125 SMS 2011 | |
| HUSQVARNA 125 SMS 2012 | |
| HUSQVARNA 125 TC 2014 | |
| HUSQVARNA 125 TC 2015 | |
| HUSQVARNA 125 TC 2016 | |
| HUSQVARNA 125 TC 2017 | |
| HUSQVARNA 125 TC 2018 | |
| HUSQVARNA 125 TE 2014 | |
| HUSQVARNA 125 TE 2015 | |
| HUSQVARNA 125 TE 2016 | |
| HUSQVARNA 125 TE 2017 | |
| HUSQVARNA 125 TX 2017 | |
| HUSQVARNA 125 TX 2018 | |
| HUSQVARNA 125 WR 1983 | |
| HUSQVARNA 125 WR 1984 | |
| HUSQVARNA 125 WR 1985 | |
| HUSQVARNA 125 WR 1986 | |
| HUSQVARNA 125 WR 1987 | |
| HUSQVARNA 125 WR 1990 | |
| HUSQVARNA 125 WR 1991 | |
| HUSQVARNA 125 WR 1992 | |
| HUSQVARNA 125 WR 1993 | |
| HUSQVARNA 125 WR 1994 | |
| HUSQVARNA 125 WR 1995 | |
| HUSQVARNA 125 WR 1996 | |
| HUSQVARNA 125 WR 1997 | |
| HUSQVARNA 125 WR 1998 | |
| HUSQVARNA 125 WR 1999 | |
| HUSQVARNA 125 WR 2000 | |
| HUSQVARNA 125 WR 2001 | |
| HUSQVARNA 125 WR 2002 | |
| HUSQVARNA 125 WR 2003 | |
| HUSQVARNA 125 WR 2004 | |
| HUSQVARNA 125 WR 2005 | |
| HUSQVARNA 125 WR 2006 | |
| HUSQVARNA 125 WR 2007 | |
| HUSQVARNA 125 WR 2008 | |
| HUSQVARNA 125 WR 2009 | |
| HUSQVARNA 125 WR 2010 | |
| HUSQVARNA 125 WR 2011 | |
| HUSQVARNA 125 WR 2012 | |
| HUSQVARNA 125 WR 2013 | |
| HUSQVARNA 125 WRE 1995 | |
| HUSQVARNA 125 WRE 1996 | |
| HUSQVARNA 125 WRE 1997 | |
| HUSQVARNA 125 WRE 1998 | |
| HUSQVARNA 125 WRE 1999 | |
| HUSQVARNA 125 WRE 2000 | |
| HUSQVARNA 125 WRE 2001 | |
| HUSQVARNA 125 WRE 2002 | |
| HUSQVARNA 125 WRE 2003 | |
| HUSQVARNA 125 WRE 2004 | |
| HUSQVARNA 125 WRE 2005 | |
| HUSQVARNA 125 WRE 2006 | |
| HUSQVARNA 125 WRE 2007 | |
| HUSQVARNA 125 WRE 2008 | |
| HUSQVARNA 125 WRE 2009 | |
| HUSQVARNA 125 WRE 2010 | |
| HUSQVARNA 125 WRE 2011 | |
| HUSQVARNA 240 CR 1984 | |
| HUSQVARNA 240 CR 1985 | |
| HUSQVARNA 240 CR 1986 | |
| HUSQVARNA 240 CR 1987 | |
| HUSQVARNA 240 CR 1988 | |
| HUSQVARNA 240 WR 1985 | |
| HUSQVARNA 240 WR 1986 | |
| HUSQVARNA 240 WR 1987 | |
| HUSQVARNA 240 WR 1988 | |
| HUSQVARNA 240 WR 1990 | |
| HUSQVARNA 240 WR 1991 | |
| HUSQVARNA 250 CR 1984 | |
| HUSQVARNA 250 CR 1985 | |
| HUSQVARNA 250 CR 1986 | |
| HUSQVARNA 250 CR 1987 | |
| HUSQVARNA 250 CR 1988 | |
| HUSQVARNA 250 CR 1990 | |
| HUSQVARNA 250 CR 1991 | |
| HUSQVARNA 250 CR 1992 | |
| HUSQVARNA 250 CR 1993 | |
| HUSQVARNA 250 CR 1994 | |
| HUSQVARNA 250 CR 1995 | |
| HUSQVARNA 250 CR 1996 | |
| HUSQVARNA 250 CR 1997 | |
| HUSQVARNA 250 CR 1998 | |
| HUSQVARNA 250 CR 1999 | |
| HUSQVARNA 250 CR 2000 | |
| HUSQVARNA 250 CR 2001 | |
| HUSQVARNA 250 CR 2002 | |
| HUSQVARNA 250 CR 2003 | |
| HUSQVARNA 250 CR 2004 | |
| HUSQVARNA 250 CR 2005 | |
| HUSQVARNA 250 FC 2014 | |
| HUSQVARNA 250 FC 2015 | |
| HUSQVARNA 250 FC 2016 | |
| HUSQVARNA 250 FC 2017 | |
| HUSQVARNA 250 FC 2018 | |
| HUSQVARNA 250 FE 2014 | |
| HUSQVARNA 250 FE 2015 | |
| HUSQVARNA 250 FE 2016 | |
| HUSQVARNA 250 FE 2017 | |
| HUSQVARNA 250 FE 2018 | |
| HUSQVARNA 250 TC 2002 | |
| HUSQVARNA 250 TC 2003 | |
| HUSQVARNA 250 TC 2004 | |
| HUSQVARNA 250 TC 2005 | |
| HUSQVARNA 250 TC 2006 | |
| HUSQVARNA 250 TC 2007 | |
| HUSQVARNA 250 TC 2008 | |
| HUSQVARNA 250 TC 2009 | |
| HUSQVARNA 250 TC 2010 | |
| HUSQVARNA 250 TC 2011 | |
| HUSQVARNA 250 TC 2012 | |
| HUSQVARNA 250 TC 2013 | |
| HUSQVARNA 250 TC 2014 | |
| HUSQVARNA 250 TC 2015 | |
| HUSQVARNA 250 TC 2016 | |
| HUSQVARNA 250 TC 2017 | |
| HUSQVARNA 250 TC 2018 | |
| HUSQVARNA 250 TE 2002 | |
| HUSQVARNA 250 TE 2003 | |
| HUSQVARNA 250 TE 2004 | |
| HUSQVARNA 250 TE 2005 | |
| HUSQVARNA 250 TE 2006 | |
| HUSQVARNA 250 TE 2007 | |
| HUSQVARNA 250 TE 2008 | |
| HUSQVARNA 250 TE 2009 | |
| HUSQVARNA 250 TE 2010 | |
| HUSQVARNA 250 TE 2011 | |
| HUSQVARNA 250 TE 2012 | |
| HUSQVARNA 250 TE 2013 | |
| HUSQVARNA 250 TE 2014 | |
| HUSQVARNA 250 TE 2015 | |
| HUSQVARNA 250 TE 2016 | |
| HUSQVARNA 250 TE 2017 | |
| HUSQVARNA 250 TXC 2008 | |
| HUSQVARNA 250 TXC 2009 | |
| HUSQVARNA 250 TXC 2010 | |
| HUSQVARNA 250 TXC 2011 | |
| HUSQVARNA 250 TXC 2012 | |
| HUSQVARNA 250 WR 1980 | |
| HUSQVARNA 250 WR 1981 | |
| HUSQVARNA 250 WR 1982 | |
| HUSQVARNA 250 WR 1983 | |
| HUSQVARNA 250 WR 1984 | |
| HUSQVARNA 250 WR 1985 | |
| HUSQVARNA 250 WR 1986 | |
| HUSQVARNA 250 WR 1987 | |
| HUSQVARNA 250 WR 1988 | |
| HUSQVARNA 250 WR 1990 | |
| HUSQVARNA 250 WR 1991 | |
| HUSQVARNA 250 WR 1992 | |
| HUSQVARNA 250 WR 1993 | |
| HUSQVARNA 250 WR 1994 | |
| HUSQVARNA 250 WR 1995 | |
| HUSQVARNA 250 WR 1996 | |
| HUSQVARNA 250 WR 1997 | |
| HUSQVARNA 250 WR 1998 | |
| HUSQVARNA 250 WR 1999 | |
| HUSQVARNA 250 WR 2000 | |
| HUSQVARNA 250 WR 2001 | |
| HUSQVARNA 250 WR 2002 | |
| HUSQVARNA 250 WR 2003 | |
| HUSQVARNA 250 WR 2004 | |
| HUSQVARNA 250 WR 2005 | |
| HUSQVARNA 250 WR 2006 | |
| HUSQVARNA 250 WR 2007 | |
| HUSQVARNA 250 WR 2008 | |
| HUSQVARNA 250 WR 2009 | |
| HUSQVARNA 250 WR 2010 | |
| HUSQVARNA 250 WR 2011 | |
| HUSQVARNA 250 WR 2012 | |
| HUSQVARNA 300 TE 2014 | |
| HUSQVARNA 300 TE 2015 | |
| HUSQVARNA 300 TE 2016 | |
| HUSQVARNA 300 TE 2017 | |
| HUSQVARNA 300 TE 2018 | |
| HUSQVARNA 300 TX 2017 | |
| HUSQVARNA 300 TX 2018 | |
| HUSQVARNA 300 WR 2009 | |
| HUSQVARNA 300 WR 2010 | |
| HUSQVARNA 300 WR 2011 | |
| HUSQVARNA 300 WR 2012 | |
| HUSQVARNA 310 TE 2009 | |
| HUSQVARNA 310 TE 2010 | |
| HUSQVARNA 310 TE 2011 | |
| HUSQVARNA 310 TE 2012 | |
| HUSQVARNA 350 FC 2014 | |
| HUSQVARNA 350 FC 2015 | |
| HUSQVARNA 350 FC 2016 | |
| HUSQVARNA 350 FC 2017 | |
| HUSQVARNA 350 FC 2018 | |
| HUSQVARNA 350 FE 2014 | |
| HUSQVARNA 350 FE 2015 | |
| HUSQVARNA 350 FE 2016 | |
| HUSQVARNA 350 FE 2017 | |
| HUSQVARNA 350 FE 2018 | |
| HUSQVARNA 350 FX 2017 | |
| HUSQVARNA 350 FX 2018 | |
| HUSQVARNA 350 TE 1990 | |
| HUSQVARNA 350 TE 1991 | |
| HUSQVARNA 350 TE 1992 | |
| HUSQVARNA 350 TE 1993 | |
| HUSQVARNA 350 TE 1994 | |
| HUSQVARNA 350 TE 1995 | |
| HUSQVARNA 350 WR 1981 | |
| HUSQVARNA 350 WR 1982 | |
| HUSQVARNA 350 WR 1983 | |
| HUSQVARNA 350 WR 1984 | |
| HUSQVARNA 350 WR 1985 | |
| HUSQVARNA 350 WR 1986 | |
| HUSQVARNA 350 WR 1987 | |
| HUSQVARNA 350 WR 1988 | |
| HUSQVARNA 360 CR 1992 | |
| HUSQVARNA 360 CR 1993 | |
| HUSQVARNA 360 CR 1994 | |
| HUSQVARNA 360 WR 1992 | |
| HUSQVARNA 360 WR 1993 | |
| HUSQVARNA 360 WR 1994 | |
| HUSQVARNA 360 WR 1995 | |
| HUSQVARNA 360 WR 1996 | |
| HUSQVARNA 360 WR 1997 | |
| HUSQVARNA 360 WR 1998 | |
| HUSQVARNA 360 WR 1999 | |
| HUSQVARNA 360 WR 2000 | |
| HUSQVARNA 360 WR 2001 | |
| HUSQVARNA 360 WR 2002 | |
| HUSQVARNA 400 TE 1995 | |
| HUSQVARNA 400 TE 1996 | |
| HUSQVARNA 400 TE 1997 | |
| HUSQVARNA 400 TE 1998 | |
| HUSQVARNA 400 TE 1999 | |
| HUSQVARNA 400 TE 2000 | |
| HUSQVARNA 400 TE 2001 | |
| HUSQVARNA 400 TE 2002 | |
| HUSQVARNA 400 WR 1981 | |
| HUSQVARNA 400 WR 1982 | |
| HUSQVARNA 400 WR 1983 | |
| HUSQVARNA 400 WR 1984 | |
| HUSQVARNA 400 WR 1985 | |
| HUSQVARNA 400 WR 1986 | |
| HUSQVARNA 400 WR 1987 | |
| HUSQVARNA 400 WR 1988 | |
| HUSQVARNA 400 WR 1989 | |
| HUSQVARNA 410 TE 1995 | |
| HUSQVARNA 410 TE 1996 | |
| HUSQVARNA 410 TE 1997 | |
| HUSQVARNA 410 TE 1998 | |
| HUSQVARNA 410 TE 1999 | |
| HUSQVARNA 410 TE 2000 | |
| HUSQVARNA 449 SMR 2011 | |
| HUSQVARNA 449 TC 2011 | |
| HUSQVARNA 449 TC 2012 | |
| HUSQVARNA 449 TE 2011 | |
| HUSQVARNA 449 TE 2012 | |
| HUSQVARNA 450 FC 2014 | |
| HUSQVARNA 450 FC 2015 | |
| HUSQVARNA 450 FC 2016 | |
| HUSQVARNA 450 FC 2017 | |
| HUSQVARNA 450 FC 2018 | |
| HUSQVARNA 450 FE 2014 | |
| HUSQVARNA 450 FE 2015 | |
| HUSQVARNA 450 FE 2016 | |
| HUSQVARNA 450 FE 2017 | |
| HUSQVARNA 450 FE 2018 | |
| HUSQVARNA 450 FR 2016 | |
| HUSQVARNA 450 FS 2016 | |
| HUSQVARNA 450 FS 2017 | |
| HUSQVARNA 450 FS 2018 | |
| HUSQVARNA 450 FX 2017 | |
| HUSQVARNA 450 FX 2018 | |
| HUSQVARNA 450 SM 2008 | |
| HUSQVARNA 450 SM 2009 | |
| HUSQVARNA 450 SMR 2003 | |
| HUSQVARNA 450 SMR 2004 | |
| HUSQVARNA 450 SMR 2005 | |
| HUSQVARNA 450 SMR 2006 | |
| HUSQVARNA 450 SMR 2007 | |
| HUSQVARNA 450 SMR 2008 | |
| HUSQVARNA 450 SMR 2009 | |
| HUSQVARNA 450 SMR 2010 | |
| HUSQVARNA 450 TC 2002 | |
| HUSQVARNA 450 TC 2003 | |
| HUSQVARNA 450 TC 2004 | |
| HUSQVARNA 450 TC 2005 | |
| HUSQVARNA 450 TC 2006 | |
| HUSQVARNA 450 TC 2007 | |
| HUSQVARNA 450 TC 2008 | |
| HUSQVARNA 450 TC 2009 | |
| HUSQVARNA 450 TC 2010 | |
| HUSQVARNA 450 TE 2002 | |
| HUSQVARNA 450 TE 2003 | |
| HUSQVARNA 450 TE 2004 | |
| HUSQVARNA 450 TE 2005 | |
| HUSQVARNA 450 TE 2006 | |
| HUSQVARNA 450 TE 2007 | |
| HUSQVARNA 450 TE 2008 | |
| HUSQVARNA 450 TE 2009 | |
| HUSQVARNA 450 TE 2010 | |
| HUSQVARNA 450 TXC 2008 | |
| HUSQVARNA 450 TXC 2009 | |
| HUSQVARNA 450 TXC 2010 | |
| HUSQVARNA 450 TXC 2011 | |
| HUSQVARNA 501 FE 2014 | |
| HUSQVARNA 501 FE 2015 | |
| HUSQVARNA 501 FE 2016 | |
| HUSQVARNA 501 FE 2017 | |
| HUSQVARNA 501 FE 2018 | |
| HUSQVARNA 510 SMR 2005 | |
| HUSQVARNA 510 SMR 2006 | |
| HUSQVARNA 510 SMR 2007 | |
| HUSQVARNA 510 SMR 2008 | |
| HUSQVARNA 510 SMR 2009 | |
| HUSQVARNA 510 SMR 2010 | |
| HUSQVARNA 510 TC 1990 | |
| HUSQVARNA 510 TC 1991 | |
| HUSQVARNA 510 TC 1992 | |
| HUSQVARNA 510 TC 1993 | |
| HUSQVARNA 510 TC 1994 | |
| HUSQVARNA 510 TC 1995 | |
| HUSQVARNA 510 TC 1996 | |
| HUSQVARNA 510 TC 1997 | |
| HUSQVARNA 510 TC 1998 | |
| HUSQVARNA 510 TC 1999 | |
| HUSQVARNA 510 TC 2000 | |
| HUSQVARNA 510 TC 2001 | |
| HUSQVARNA 510 TC 2002 | |
| HUSQVARNA 510 TC 2003 | |
| HUSQVARNA 510 TC 2004 | |
| HUSQVARNA 510 TC 2005 | |
| HUSQVARNA 510 TC 2006 | |
| HUSQVARNA 510 TC 2007 | |
| HUSQVARNA 510 TC 2008 | |
| HUSQVARNA 510 TC 2009 | |
| HUSQVARNA 510 TC 2010 | |
| HUSQVARNA 510 TE 1990 | |
| HUSQVARNA 510 TE 1991 | |
| HUSQVARNA 510 TE 1992 | |
| HUSQVARNA 510 TE 1993 | |
| HUSQVARNA 510 TE 1994 | |
| HUSQVARNA 510 TE 1995 | |
| HUSQVARNA 510 TE 1996 | |
| HUSQVARNA 510 TE 1997 | |
| HUSQVARNA 510 TE 1998 | |
| HUSQVARNA 510 TE 1999 | |
| HUSQVARNA 510 TE 2000 | |
| HUSQVARNA 510 TE 2001 | |
| HUSQVARNA 510 TE 2002 | |
| HUSQVARNA 510 TE 2003 | |
| HUSQVARNA 510 TE 2004 | |
| HUSQVARNA 510 TE 2005 | |
| HUSQVARNA 510 TE 2006 | |
| HUSQVARNA 510 TE 2007 | |
| HUSQVARNA 510 TE 2008 | |
| HUSQVARNA 510 TE 2009 | |
| HUSQVARNA 510 TE 2010 | |
| HUSQVARNA 510 TXC 2009 | |
| HUSQVARNA 510 TXC 2010 | |
| HUSQVARNA 510 TXC 2011 | |
| HUSQVARNA 511 TE 2011 | |
| HUSQVARNA 511 TE 2012 | |
| HUSQVARNA 570 SMR 2001 | |
| HUSQVARNA 570 SMR 2002 | |
| HUSQVARNA 570 SMR 2003 | |
| HUSQVARNA 570 SMR 2004 | |
| HUSQVARNA 570 TC 2001 | |
| HUSQVARNA 570 TC 2002 | |
| HUSQVARNA 570 TC 2003 | |
| HUSQVARNA 570 TE 2001 | |
| HUSQVARNA 570 TE 2002 | |
| HUSQVARNA 570 TE 2003 | |
| HUSQVARNA 570 TE 2004 | |
| HUSQVARNA 610 SM 1999 | |
| HUSQVARNA 610 SM 2000 | |
| HUSQVARNA 610 SM 2001 | |
| HUSQVARNA 610 SM 2002 | |
| HUSQVARNA 610 SM 2003 | |
| HUSQVARNA 610 SM 2004 | |
| HUSQVARNA 610 SM 2005 | |
| HUSQVARNA 610 SM 2006 | |
| HUSQVARNA 610 SM 2007 | |
| HUSQVARNA 610 SM 2008 | |
| HUSQVARNA 610 SM 2009 | |
| HUSQVARNA 610 TC 1991 | |
| HUSQVARNA 610 TC 1992 | |
| HUSQVARNA 610 TC 1993 | |
| HUSQVARNA 610 TC 1994 | |
| HUSQVARNA 610 TC 1995 | |
| HUSQVARNA 610 TC 1996 | |
| HUSQVARNA 610 TC 1997 | |
| HUSQVARNA 610 TC 1998 | |
| HUSQVARNA 610 TC 1999 | |
| HUSQVARNA 610 TC 2000 | |
| HUSQVARNA 610 TE 1991 | |
| HUSQVARNA 610 TE 1992 | |
| HUSQVARNA 610 TE 1993 | |
| HUSQVARNA 610 TE 1994 | |
| HUSQVARNA 610 TE 1995 | |
| HUSQVARNA 610 TE 1996 | |
| HUSQVARNA 610 TE 1997 | |
| HUSQVARNA 610 TE 1998 | |
| HUSQVARNA 610 TE 1999 | |
| HUSQVARNA 610 TE 2000 | |
| HUSQVARNA 610 TE 2001 | |
| HUSQVARNA 610 TE 2002 | |
| HUSQVARNA 610 TE 2003 | |
| HUSQVARNA 610 TE 2004 | |
| HUSQVARNA 610 TE 2005 | |
| HUSQVARNA 610 TE 2006 | |
| HUSQVARNA 610 TE 2007 | |
| HUSQVARNA 610 TE 2008 | |
| HUSQVARNA 610 TE 2009 | |
| HUSQVARNA 630 SM 2010 | |
| HUSQVARNA 630 SMR 2003 | |
| HUSQVARNA 630 SMR 2004 | |
| HUSQVARNA 630 SMS 2011 | |
| HUSQVARNA 630 TE 2010 | |
| HUSQVARNA 630 TE 2011 | |
| HUSQVARNA 630 TE 2012 | |
| HUSQVARNA 65 TC 2017 | |
| HUSQVARNA 65 TC 2018 | |
| HUSQVARNA 85 TC 2015 | |
| HUSQVARNA 85 TC 2016 | |
| HUSQVARNA 85 TC 2017 | |
| HUSQVARNA 85 TC 2018 | |
Opções
Marca
Modelo
Ano
Dentagem
Tags:
Cremalheira Jt Husqvarna