On KTM motorcycles, "SX" stands for "Supercross," indicating that the bike is designed primarily for Motocross racing. These models are typically lightweight, feature high-performance suspension systems, and are optimized for off-road conditions, making them suitable for competitive racing on dirt tracks. The SX lineup includes various engine sizes, catering to different rider preferences and skill levels.
The sx is for supercross.
The KTM 360 SX is still a good bike, like all other KTM's dependable but parts are expensive when you need them. Here is a link that has pictures of the 360 SX: http://www.bikepics.com/ktm/360sx/
The KTM sx is fast but the yfz is the best for what I do, what kind of riding do you do?
no it does not
The KTM 50 SX Junior is 23 inches, the 50 SX Pro Senior is 25.6 inches.
KTM 125
For a 250 SX KTM recommends Motorex Top Speed 4T 15W50 (.7 L). For a 250 SX-F KTM recommends Motorex Power Synt 4T 10W50 (1.1 L).
2009 KTM 250SX retail price $6598
MSRP of the 09 KTM 125 SX is $5998 USD.
for 2009 KTM 125SX $5998 US
You can find that info , as well as a lot more, here: http://motocross.transworld.net/2003/07/09/2004-ktm-125-sx-200-sx-250-sx-and-525-sx/
130mph