2004 KTM Sportminicycles
- 50 SX Pro Senior
Faster, taller, broader, stronger - the young
pros always want more from their bike. For
pros ages 6 to 9. With Marzocchi racing fork,
WP central shock, and liquid cooled racing
sport engine with automatic transmission.
Seat height from 650 mm.
In the KTM Sportminicycle program, the 50
SX pro series with liquid-cooling offers a
true Motocross sport motorcycle in small format
for young pros. Both models are equipped with
a WP shock absorber with improved sealing,
a new crankshaft and a new water pump shaft
for increased durability.
All 50 SX Pro Junior LC models come with
thicker, more reliable rear wheel spokes.
Rear disc brakes replace drums of the 50 SX
Pro Senior LC and therefore adapted new frame.
Foot brake-cylinder with an integrated reservoir
and dual-piston rear brake calliper. Stronger
swing arm axle enlarged from 10 mm to 12 mm
with needle bearing instead of bushings offer
more stability and less maintenance.
Engine Type - single cylinder, 2-stroke
Displacement (cc) - 49
Bore x stroke (mm) - 39.5 x 40
Starter - Kick-starter
Carburetor - Dell'Orto PHVA 19 BS
Engine lubrication - mixture lubrication
Primary drive - 16:57
Final drive - chain 1/2 x 3/16" 104 R
Cooling - liquid cooled
Clutch - centrifugal clutch (adjustable)
Ignition - Selettra
Frame - central double-cradle-type frame
Handlebar - Alu D22
Front suspension - Marzocchi Ø 32 mm
Rear suspension - WP monoshock
Suspension travel front / rear - 185/185
Front brake - disc brake Ø 160 mm
Rear brake - disc brake Ø 140 mm
Front / rear rim - 1,6 x 12"; 1,6 x 10"
Front / rear tyre - 2,50 x 12"; 2,75 x
Transmission ratio - 10:44
Main silencer - Aluminum
Steering head angle - 24°
Wheel caster - 66.7 mm
Wheel base - 1030 mm
Ground clearance (unloaded) - 255 mm
Seat height - 650/675 mm (adjustable)
Fuel capacity - approx. 1.8 liters
Weight (ready to race, no fuel) - approx.