The KTM 50 SX Junior is 23 inches, the 50 SX Pro Senior is 25.6 inches.
66 to 68 cm
Seat height is 29.5 inches.
As far as I know, there is no adjustment.
Seat height on the 2010 450 SX-F is 38.78 inches
Seat height is 34.4 inches with 16.3 inches of ground clearance.
The 2011 KTM 125SX seat height is 992 mm (39.1 inches)
Seat height on the 09 is 985 mm or 38.8 inches.
According to bikez.com specs, for a 2008 105 SX, seat height is 35 inches.
the engine power and the seat height
The seat latch bolts to the frame through the gas tank. The seat latch will screw out like a bolt.
KTM 50 tops out around 50-52 mph my 06 ktm 50 hits 55-60mph
You have a 1999 KTM 50 SXR.