Full Test: 2010 KTM 250 SX-F and 450 SX-F MotoOnline.com.au

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KTM 250 SX

Full Test: 2010 KTM 250 SX-F and 450

MotoOnline.com.au goes orange in the with KTM’s 2010 four-… Open and Lites weapons.

2010 KTM 450 SX-F

Engine type: Liquid-cooled, four-… (electric start)


Wheelbase: 1475

Seat Height: 985mm


Price: $10,995

options: Orange

Test KTM Australia

Magazine test results worldwide are important for when launching their campaigns each particular with the American media important in the grand scheme of

So when KTM’s 450 SX-F won Action’s Open class for 2010, many around the stood up and took note of the Austrian manufacturer has to offer for year.

Combined with the successful 250 SX-F that has success on the race track in the hands of top riders, there’s no that KTM is pushing its Japanese to the extreme.

MotoOnline.com.au was lucky to get our hands on the latest and greatest Motocross bikes from KTM the past fortnight, riding a of hard pack and sandy around New South Wales to see how this year’s KTMs up.

Both models have suspension settings for the new year, new fork seals and bushings to reduce sliding friction to KTM’s press kit.

are new triple clamps that are instead of 20, featuring patented in a bid to increase the flex characteristics of the as well as the overall stability and as you’d expect.

Apart from that, the changes are minimal to the chassis, new Toyo B153 brake fitted, a 1.8 bar radiator cap instead of new Renthal hand grips, as as a new airbox design and air filter.

On the 450 find the big changes, with a designed frame having the head welded 10mm than in 2009, lowering the position and fuel tank for steering thanks to an optimised balance.

Engine wise, the 450 has also enjoyed the major featuring a reinforced piston 0.5mm thicker for better and a new carburettor setting for bottom-end to the power delivery.

The big change is the extra gear in the transmission, it from a four-speed gearbox to – falling in line with the top bikes available on the market.

As for the no changes were made to the for this year, the engine arguably the most powerful in the class against a hoard of opposition.

Some were for linkage this year and it was as always, however that component of the motorcycle has been for the trick 350 SX-F and the 2011 that are due for release toward the end of the

Also saved for the 350 is fuel-injection, the current models remaining however we’re not exactly if the 250 or 450 will be EFI for next year.

As when you buy a KTM – 250 or 450 – you won’t be disappointed the quality of the components that feature, with quality such as WP suspension, black rims, Brembo brakes throughout the models.

There’s also the integrated that are within the shrouds, they don’t have a to peel like your graphics.

When it comes to Open class Motocross big power and outdoor satisfaction to mind as soon as you first of the push-button electric start.

The manufacturer has a rich history in both in Australia and abroad, the engine setting smiles off on worldwide – some loving it and blown away by it.

Ryan puts MotoOnline.com.au’s test KTM 250 SX-F its paces at Appin.

There’s no that the engine of the 450 SX-F is a the upgrade to a five-speed gearbox year after a few years four making the motor in its search for the complete package.

A throttle response will you at the twist of the throttle, no sign of lag the lack of EFI, before a spread of power comes on – a lot stronger than I personally can the most of.

Even the top pros the high power output of the 450 more aggressive than its and featuring a power curve hits hard off the bottom pulling for a long time up

While the power is phenomenal, the finishing touches such as the hydraulic clutch, mega gearbox and awesome sound really cap off the engine characteristics of the

This year has seen KTM on improving the chassis on the 450 immensely, the a great improvement without any hint of stability.

You can select your line, aim for the rut and through the turn, however corners will force you to hard as it seriously does quickly when you commit.

The slogan of Ready to Race very true when its to the 250 and 450 SX-F models.

On corner there’s a lot of grip on offer as it to the ground, but you’ll have to in the rear shock if you’re to get on the gas as best you can on the acceleration bumps form in some cases.

If the is smooth, hold on for the ride the tractability is high and the engine has it takes to impress as soon as you get on the gas

Generally speaking the shock bumps well, although at the front suspension does softer than the rear, some refinements on the overall of the bike.

As for the Brembo brakes to the KTMs, the front is absolutely the powerful and consistent on the market, the rear is touchy and has a tendency to – whether it’s my testing or the guys in action who use a lot of rear.

The lever for the front brake great adjustment to fit each size, as does the clutch.

KTM 250 SX

The 450 has the of electric start, which makes life much, easier when going The only problem is that no kick-starter fitted as a back up. If the button malfunctions, chances are mate will be pushing to you fire it into life – and I seen this happen

Get on the gas hard and the KTMs will the best in their respective

Other features that the bike easy to work on the easy access air filter via the plate, which makes checking, cleaning and changing the an absolute walk in the park a need for tools.

Both the 450 and the 250 share the same wheelbase and height to give a very feel ergonomically, which is a seat with reasonably handlebars that are the Renthal Fat

The difference is that the extra 6.6 that the 450 has over the 250 makes it completely differently overall, the Lites class bike a lot stiffer in the way it rides overall.

Its is a lot more rigid, deflecting off if you’re cruising but absolutely the track if you push it hard to get the suspension working.

My feeling is the KTM Lites bike is extremely focussed, possibly harsh for the rider, but rewarding for those who are enough to push it hard, or enough to get the suspension working at a lower pace.

The 250 SX-F is in its handling, rewarding to those who can the most out of it, whether it be by taking of the engine’s power or handling

Marmont is a KTM 250 SX-F Pro Lites class

Having factory JDR Motorex KTM rider Ryan Marmont on during a day of testing at Appin my thoughts that the bike fast riders, the former Pro MX Nationals Champion feeling at home on the stock test straight away and setting a not too far shy of what he could do on his factory that same day.

brakes also work a on the Lites bike, it also the same easy access as the 450 and features the trick Excel as standard equipment.

What it have compared to its “big is an electric starter, however the is easy enough to operate on a 250 and it without a fuss every you kick it over.

I mentioned the above and it’s important to just how broad the spread of is on tap considering it’s a 250. the 450 has mega power that you won’t be able to take of, every ounce of power in the Lites class.

Whether a rider who prefers bottom-end or power you’ll be impressed, as the grunts off the turn and then hard as you work your way up the six-speed gearbox that’s in the

Tighter handling is where the 450 has greatly for 2010.

There’s no whatsoever of a flat spot in the from initial application to throttle – acceleration at its best in the class.

The Renthal ’bars are quality as standard on both but you’ll want to upgrade the pad as it’s almost as hard as the that it’s designed to be

Overall there’s no doubt KTM has progressed big time this with the 450 as the complete package, stepping up to assert the 450 SX-F as the top Open class bike and it to the Japanese like never

As for the 250 SX-F, KTM continues to standout its spectacular engine and race-oriented making the bike a sure for those who are looking to compete a bike straight off the showroom without the need for mods.

news for those in the market now for a new ride is that the current have been reduced in by $800, slashing the cost to $10,995 for the 250 SX-F and $11,995 for the 450

If you’re looking for a Euro in your Motocross past there’s never been a time to lay down your earned on KTM’s Australian-built Bring on 2011!

KTM 250 SX
KTM 250 SX
KTM 250 SX
KTM 250 SX


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