When it comes to motocross bikes, KTM->ke1954 offers a full breadth of some of the most powerful bikes on the market, including the spectacular KTM 450 SX-F->ke3069.

The 450 SX-F's high-quality chassis allows advanced riders to convert the brutal power of the brand's innovative DOHC four-stroke engine into controllable traction, even on the toughest MX tracks. Add that to a newly-developed clutch and a robust steel cage, and you have a motocross bike that's truly the class of the field. Especially when you throw in the transmission-friendly back-damping that makes use of a spring washer for the first time instead of the customary conical springs, substantially reducing the operating force.

Adding to the bike's unbridled versatility and all-around functionality is a new technology for the exhaust. In conjunction with the innovative HPRS (Header Pipe Resonator System) and large-diameter silencer, the 450 SX-F's super-light titanium exhaust manifold ensures plenty of power at low noise levels.

In terms of its design, the 450 SX-F was built to compete, featuring a state-of-the-art frame that's made from high-quality chrome-molybdenum steel. The bike's bodywork is extremely slim, making for a dynamic ride that's characterized by a particularly balanced geometry that combines easy handling with razor-sharp precision.

Handling and ride ability are always chief requirements for world-class motocross riders. On both those fronts, the KTM 450 SX-F is in a true class of its own, making it an ideal choice for riders looking to make a name for themselves in the motocross world.

Find out more about the KTM 450 SX-F after the jump.

2012 KTM 450 SX-F

Specifications
  • Make: Array
  • Model: 2012 KTM 450 SX-F
  • Engine/Motor: 1-cylinder, 4-stroke, DOHC, 4-valve
  • Transmission: 5-speed, claw shifted
  • [do not use] Vehicle Model: Array

Engine

The 450 SX-F's sensational, state-of-the-art four-stroke single-cylinder engine, featuring twin overhead camshafts and four valves actuated by means of cam levers, excels with an extremely wide usable rev range and immense torque coupled with unrivalled performance.

Frame

The 450 SX-F's state-of-the-art frame made from high-quality chrome-molybdenum steel is not only extremely light and torsion-resistant. It is also characterised by a particularly balanced geometry that combines easy handling with razor-sharp precision.

Bodywork

The 450 SX-F's bodywork with the very slim seat and spoiler lines, plus excellent contact points, perfects the bike's ergonomics, making handling even simpler and more precise.

Electric Starter

Years ago, KTM proved that an electric starter is very advantageous even in the tough sport of motocross. That's why the 450 SX-F can also be started at the press of a button.

Specifications

Design

Single-cylinder, 4-stroke, spark-ignition engine, liquid-cooled

Displacement

449.3 cm³ (27.418 cu in)

Bore

97 mm (3.82 in)

Stroke

60.8 mm (2.394 in)

Starting aid

Electric starter

Engine lubrication

Forced oil lubrication with 3 Eaton pumps

Primary gear ratio

29:74

Final drive

14:52

Cooling system

Liquid cooling system, continuous circulation of cooling liquid with water pump

Clutch

Wet multi-disc clutch / hydraulically operated

Ignition system

Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment

Frame

Central tube frame made of chrome molybdenum steel tubing

Forks

WP Suspension Up Side Down 4860 MXMA CC

Shock absorber

WP Suspension 5018 BAVP DCC

Suspension travel Front

300 mm (11.81 in)

Suspension travel Rear

330 mm (12.99 in)

Brake system

Disc brakes, brake calipers on floating bearings

Brake discs - diameter Front

260 mm (10.24 in)

Brake discs - diameter Rear

220 mm (8.66 in)

Chain

5/8 x 1/4"

Steering head angle

63.5°

Wheelbase

1,495±10 mm (58.86±0.39 in)

Ground clearance unloaded

371 mm (14.61 in)

Seat height unloaded

992 mm (39.06 in)

Total fuel tank capacity approx.

7.5 l (1.98 US gal)

Unleaded premium fuel (95 RON)

Weight without fuel, approx.

107.8 kg (237.7 lb.)


Quotes

Motorcycle-USA----"The calibration of the suspension is better than last year, but the bike still has a propensity to pitch more aggressively than some of the other bikes. It’s not that the suspension or handling is bad; it just didn’t impress us in the same way as the other bikes hence receiving low scores in the suspension, handling and ergonomics categories. "