KTM 50SX 2012 Review
2012 KTM 50SX Review
The perfect launch pad into the MX world
A real KTM for the smallest of future MX. The 88 lb. lightweight 50 SX sets the standard in terms of controllability and riding fun. A high-quality chassis with easily applied rotor brakes, top-quality components wherever you look and a powerful, reliable engine with easy-to-operate centrifugal clutch.
2012 KTM 50SX Features and Benefits
New for 2012:
» New 35 mm USD front fork made by WP (205 mm travel)
» New triple clamps
» New front axle (15 instead of 12 mm)
» Larger radiators
» New handlebars made by Renthal
» New full-size throttle grip
» New 2-component handlebar grips
» New wheels with aluminum spoke nipples
» New graphics
Frame and suspension components
The chassis on the 50 SX is equipped exclusively with high-quality components — from the sturdy chrome-molybdenum steel frame to the newly developed WP upside-down fork. The torsionally, extremely stiff 1.38 in telescopic fork with new, forged triple clamps and 7.28 in suspension travel provides perceptibly better ride stability and more comfortable suspension.
High-quality, hydraulically actuated disc brakes, with wave type brake rotors at the front and rear.
High-quality, aluminum alloy Renthal handlebars designed specifically for the 50 SX contribute to the ergonomic package for optimum control. Power is now even more controllable with the new Domino throttle grip. The new, dual-compound rubber grips on the handlebar provide a secure hold for the hands, with the cross bar bearing a crash pad should you need one.
The liquid-cooling system of the 50 SX, with two large radiators and additional cooling for the crankcase, prevents the engine from overheating, even under the most extreme loads. Besides that, the smallest KTM can still take a fair bit of punishment — from bike-to-bike contact or contact with the ground.
Frame and suspension components
The chassis on the 50 SX is equipped exclusively with high-quality components — from the sturdy chrome-molybdenum steel frame to the torsionally stiff, multiple-adjustment WP upside-down telescopic fork with forged triple clamps, 1.38 in outer tubes and 7.28 in suspension travel.
2012 KTM 50SX – International Specifications
MSRP Price: See KTM dealer in your country for pricing.
Engine type Single cylinder, 2-stroke
Displacement 49 cc
Bore/stroke 39,5/40 mm
Carburetor Dell’Orto PHBG 19 BS
Lubrication Mixture lubrication 1:60
Transmission Single gear automatic
Gear ratios 14:31
Primary ratio 61:33
Final drive 11:40
Cooling Liquid cooling
Clutch Centrifugal clutch (adjustable)
Ignition Selettra 2p D36
Frame Double grinded central double-cradle-type frame
Handlebar Renthal, Aluminium Ø 22 mm
Front suspension WP Upside-Down Ø 35 mm
Rear suspension WP mono shock
Suspension travel front/rear 185/185 mm
Front brake Disc brake Ø 160 mm
Rear brake Disc brake Ø 140 mm
Front/rear rims 1.50 x 12″; 1.60 x 10″ Alu
Front/rear tires 60/100 x 12″; 2.75 x 10″
Chain 1/2 x 3/16″
Steering head angle 66°
Wheel base 1,032 mm ± 10 mm
Ground clearance 252 mm
Seat height 684 mm
Tank capacity ca. 2,3 Liter
Weight (ready to race) approx. 39,8 kg (without fuel)
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