About ktm

KTM manufactures multiple variations of off-road motorcycles.

Motocross – The current Motocross line designated by SX includes 65, 85, 105, 125, 150 and 250 cc two-stroke models, and 250, 350, 450 four-stroke models. In 2005 KTM released the new 250SX-F to the general public. For the 2007 model-year, all of KTM's four-stroke SX motors were re-designed similarly to the 250 SX-F, in a dual-overhead cam 4-valve line dubbed the "RC4". The SX-F's are KTM's new racing motocross range introduced in 2007.

KTM now produce a 150SX (144 cc), which was developed to take advantage of AMA rule changes in the amateur classes.

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Enduro – KTM began manufacturing competition Enduro motorcycles in the 1960s and started competing in 1964. By 1968 their 125cc GS model was imported into the US market as the Penton Six Day. In 1973 they began production of their first 250cc two-stroke Enduro bike^[7] and in 1974 Italian rider Imerio Testori won KTM their first European Championship title. In 1981 they produced their first liquid cooled motor and soon thereafter applied the technology to four-strokes culminating in the 1987 LC4 (liquid-cooled four-stroke) motor and two more championships. 1997 marked the beginning of KTMs domination of the off-road/Enduro market with the introduction of the LC4 based, electric-starting, 400 EGS-E. The electric-starting bike became the RFS (Racing Four Stroke) 400 EXC in 1999 and dominated the World Enduro Championship.

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