Race ready the minute you buy it, the KTM SX line is built with the incredible performance needed to compete and win in the super cross war. KTM is the only manufacturer to offer what most consider to be aftermarket racing parts stock on their off-road products, and the SX is no exception. Exclusive factory installed components include Hydraulic Magura Clutches, Brembo Brakes, FMF, Pro Circuit, and Akrapovic Exhausts, WP and Marzocchi Suspension, Excel Wheels, Pro Taper or Renthal bars, and many more. With the best components already installed, a racer can purchase a KTM SX, head straight to the track and be competitive.
KTM stands out from other manufacturers by offering way more for consumers to choose from than just the typical mini, 250cc, and 450cc engine sizes. The SX line is offered in almost every conceivable engine size as well as 2-stroke (SX) and 4-stroke (SX-F) making it considerably easier for growing or learning riders to transition from a small bike to a larger one.
KTM SX Specs
Tires, Battery, and Spark Plug
KTM 50 SX Specs
1998-2009 50 Mini
Front Tires 2.50x10
Rear Tires 2.50x10 (2000-2003)
Rear Tires 2.75x10 (2004-2009)
Battery None
Spark Plug B8HS (2000-2003)
Spark Plug BR8ECM (2004-2009)
KTM 50 SX Specs
1998-2009 50 JR/Pro JR
Front Tires 2.50x10
Rear Tires 2.50x10 (1998-2001)
Rear Tires 2.75x10 (2002-2009
Battery None
Spark Plug B8HS (1998-2001)
Spark Plug BR8HS & BR10EG (2002 Only)
Spark Plug BR8ECM (2003-2009)
KTM 50 SX Specs
1999-2007 50 SR/Pro SR
Front Tires 2.50x10
Rear Tires 2.50x10 (1998-2001)
Rear Tires 2.75x10 (2002-2007)
Battery None
Spark Plug B8HS (1999-2000)
Spark Plug BR8HS & BR10EG (2002 Only)
Spark Plug BR8ECM (2003-2007)
KTM 60 SX Specs
1998-2000 60 SX
Front Tires 60x100x14
Rear Tires 80x100x12
Battery None
Spark Plug BR10EG
KTM 65 SX Specs
1998-2009 65 SX
Front Tires 60x100x14
Rear Tires 80x100x12
Battery None
Spark Plug BR10EG (1998-2001)
Spark Plug BR8ECM (2002-2009)
KTM 85 SX Specs
2003-2009 85 SX (Small Wheel)
Front Tires 70x100x17
Rear Tires 90x100x14
Battery None
Spark Plug BR10ECMVX (2003-2006)
Spark Plug BR9EVX (2007 Only)
Spark Plug BR9ECMVX (2008-2009)
KTM 85 SX Specs
2003-2009 85 SX (Big Wheel)
Front Tires 70x100x19
Rear Tires 90x100x16
Battery None
Spark Plug BR10ECMVX (2003-2006)
Spark Plug BR9EVX (2007 Only)
Spark Plug BR9ECMVX (2008-2009)
KTM 105 SX Specs
2004-2009 105 SX
Front Tires 70x100x19
Rear Tires 90x100x16
Battery None
Spark Plug BR10ECMVX (2004-2006)
Spark Plug BR9EVX (2007 Only)
Spark Plug BR9ECMVX (2008-2009)
KTM 125 SX Specs
1998-2008 125 SX
Front Tires 80x100x21
Rear Tires 100x90x19
Battery None
Spark Plug R6918B-8 (1998-1999)
Spark Plug BR9EVX (2000-2007)
Spark Plug BR9ECMVX (2008)
KTM 144 SX Specs
2007-2008 144 SX
Front Tires 80x100x21
Rear Tires 100x90x19
Battery None
Spark Plug BR9ECMVX
KTM 150 SX Specs
2009 150 SX
Front Tires 80x100x21
Rear Tires 100x90x19
Batter None
Spark Plug BR9ECMVX
KTM 200 SX Specs
2003-2004 200 SX
Front Tires 800x100x21
Rear Tires 100x90x19
Batter None
Spark Plug BR9EVX
KTM 250 SX Specs
1998-2009 250 SX
Front Tires 80x100x21
Rear Tires 110x90x19
Battery None
Spark Plug BR8ECM
KTM 250 SX Specs
2005-2009 250 SX-F
Front Tires 80x100x21
Rear Tires 100x90x19
Battery None
Spark Plug CR9EKB
KTM 380 SX Specs
1998-2002 380 SX
Front Tires 80x100x21
Rear Tires 110x100x19
Battery None
Spark Plug BR8ECM
KTM 400 SX Specs
2000-2002 400 SX
Front Tires 80x100x21
Rear Tires 110x100x19
Battery None
Spark Plug CR8EK
KTM 450 SX Specs
2003-2006 450 SX (RFS)
Front Tires 80x100x21
Rear Tires 110x90x19
Battery None
Spark Plug DCPR8E
KTM 450 SX Specs
2007-2009 450 SX-F
Front Tires 800x100x21
Rear Tires 110x90x19
Battery YTX4L-BS (2007-2008)
Battery YTX5L-BS (2009)
Spark Plug CR9EKB
KTM 505 SX Specs
2008-2009 505 SX-F
Front Tires 80x100x21
Rear Tires 110x90x19
Battery YTX4L-BS
Spark Plug CR9EKB
KTM 520 SX Specs
2000-2002 520 SX
Front Tires 80x100x21
Rear Tires 110x100x19
Battery None
Spark Plug CR8EK
KTM 525 SX Specs
2003-2007 525 SX
Front Tires 800x100x21
Rear Tires 110x90x19
Battery None
Spark Plug DCPR8E
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