KTM 2011 Off-Road Bikes Arrive in June


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2011 Models

KTM introduces its 2011 off-road lineup to dealerships in June, meeting the anticipation created by the 350 SX-F thanks to a win by Jagermeister KTM rider Mike Alessi at the opening round of the Lucas Oil AMA Pro Motocross Championship at the Hangtown Classic.

While some may be been skeptical that a 350 can run with 450s, the 350 SX-F earned 4-1 moto finishes with Alessi aboard, placing him second overall. The 350 SX-F was also the first-ever 350cc cycle in the MX1 World Championship, where Antonio "Tony" Cairoli won the premier race.

The new-size four-stroke--recalling the early years of two-strokes in motocross when open bikes were often 351cc--was developed by ten-time MX World Champion Stefan Everts, with the goal offering the performance of a 450cc with the agility of a 250cc MX bike.

The 350 SX-F, along with every other SX-F model, features linked rear suspension system, rather than the linkage-less shock PDS suspension associated with KTM. The 2011 two-stroke (SX) models still retain PDS.

The 350 SX-F also features a Keihin fuel injection system with a 42mm throttle body and a Keihin engine management system, and an electric start, although the bike can be retrofitted with a kickstarter.

The 350 SX-F is one of six MX models for 2011: the SX (two-stroke) models, the 125 SX, the 150 SX and 250 SX, and the SX-F (four stroke) models, the 250 SX-F, the 350 SX-F and the 450 SX-F.

As for the SX-F models, the 250 and 350 have the new fuel injection, but the 450 retains the 41mm Keihin carburetor. All SX-F models also get 48mm WP fork up front.

Both the SX and SX-F models have redesigned, stiffer framework, with the only differences arriving from the PDS vs. the linked suspension mounting holes.

As for the two-stroke SX models, all will retain PDS suspension and Keihin carburetors. The 150 and 250 SX models also have the following upgrades:

> New cylinder with improved casting

> New exhaust pipe with increased wall thickness for more resistance against damage

> New radiator cap for better heat stability

> Entirely new KTM-patented triple-clamp design that includes a 22mm fixed off-set and overall design improvements for improved flex characteristics and optimal handling.

> Modified air box with a new shape that helps reduce dirt and water collection and new TwinAir filter

> New brake pads for more progressive feel

> New Renthal Diamond handgrips

The 150 SX transmission also received a reinforced 1st gear for durability, and the frame is redesigned with a steeper steering head angle for easier cornering and a better feeling in the front end.

2011 KTM 125 SX

Engine type	Single cylinder, 2-stroke
Displacement	124.8 cc
Bore x stroke	54 x 54.5 mm (2.13 x 2.15")
Starter	Kickstarter
Transmission	6 gears
Carburetor	Keihin PWK 38S AG
Control	Exhaust control
Lubrication	Mixture oil lubrication 1:40
Transmission oil	Motorex, SAE 15W50
Primary drive	23:73
Final drive	13:50
Cooling	Liquid cooling
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Kokusan

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm (1.10/0.87")
Front suspension	WP USD Ø 48 mm (1.89")
Rear suspension	WP PDS shock absorber
Suspension travel front/rear	300/336 mm
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1.60 x 21"; 2.15 x 19" Excel
Tires, front/rear	80/100-21"; 100/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63.5°
Wheel base	1480±10 mm
Ground clearance (unloaded)	385 mm
Seat height	992 mm
Tank capacity	approx. 7,5 liters
Weight (no fuel)	approx. 88.8 kg

2011 KTM 150 SX

Engine type	Single cylinder, 2-stroke
Displacement	143.6 cc
Bore x stroke	56 x 58.4 mm (2.20 x 2.30")
Starter	Kickstarter
Transmission	6 Gears
Carburetor	Keihin PWK 38S AG
Control	Exhaust control
Lubrication	Mixture oil lubrication 1:40
Transmission oil	Motorex, SAE 15W50
Primary drive	23:73
Final drive	14:50
Cooling	Liquid cooling
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Kokusan

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm (1.10/0.87")
Front suspension	WP USD Ø 48 mm (1.89")
Rear suspension	WP PDS shock absorber
Suspension travel front/rear	300/336 mm
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1,60 x 21"; 2,15 x 19" Excel
Tires, front/rear	80/100-21"; 100/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63.5°
Wheel base	1480±10 mm
Ground clearance (unloaded)	385 mm
Seat height	992 mm
Tank capacity	approx. 7,5 Liter
Weight (no fuel)	approx. 88.8 kg

2011 KTM 250 SX

Engine type	Single cylinder, 2-stroke
Displacement	249 cc
Bore x stroke	66.4 x 72 mm (2.61 x 2.83")
Starter	Kickstarter
Transmission	5 gears
Carburetor	Keihin PWK 36S AG
Control	TVC power valve
Lubrication	Mixture oil lubrication 1:60
Transmission oil	Motorex, SAE 15W50
Primary drive	26:72
Final drive	13:48
Cooling	Liquid cooling
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Kokusan

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm (1.10/0.87")
Front suspension	WP USD Ø 48 mm (1.89")
Rear suspension	WP PDS shock absorber
Suspension travel front/rear	300/335 mm (11.81/13.19")
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1.60 x 21"; 2.15 x 19" Excel
Tires, front/rear	80/100-21"; 110/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63.5°
Wheel base	1475±10 mm (58.07 ± 0.39")
Ground clearance (unloaded)	385 mm (15.16")
Seat height	985 mm (38.78")
Tank capacity	approx. 8 liters (2.11 gal)
Weight (no fuel)	approx. 95.4 kg (208 lbs)

2011 KTM 250 SX-F

Engine type	Single cylinder, 4-stroke
Displacement	248.6 cc
Bore x stroke	76 x 54.8 mm (2.99 x 2.16")
Compression ratio	13.2:1
Starter	Kickstarter
Transmission	6 gears
Carburetor	Keihin EFI, throttle body 42 mm
Control	4 V/DOHC with finger followers
Lubrication	Pressure lubrication with 2 oil pumps
Engine lubrication	Motorex, SAE 10W50
Primary drive	22:68
Final drive	13:48
Cooling	Liquid cooled
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Keihin EMS

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm (1.10/0.87")
Front suspension	WP USD Ø 48 mm (1.89")
Rear suspension	WP-Monoshock with linkage
Suspension travel front/rear	300/330 mm
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1.60 x 21"; 2.15 x 19" Excel
Tires, front/rear	80/100-21"; 100/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63.5°
Wheel base	1495±10 mm
Ground clearance (unloaded)	375 mm
Seat height	992 mm
Tank capacity	approx. 7.5 liters
Weight (no fuel)	approx. 99.9 kg

2011 KTM 350 SX-F

Engine type	Single cylinder, 4-stroke
Displacement	349.7 cc
Bore x stroke	88/57.5 mm
Compression ratio	13.5:1
Starter	Electric starter/12V 3 Ah
Transmission	5 gears
Carburetor	Keihin EFI, throttle body 42 mm
Control	4 V/DOHC with finger followers
Lubrication	Pressure lubrication with 2 oil pumps
Engine lubrication	Motorex, SAE 10W50
Primary drive	24:73
Final drive	14:50
Cooling	Liquid cooled
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Keihin EMS

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm (1.10/0.87")
Front suspension	WP USD Ø 48 mm (1.89")
Rear suspension	WP-Monoshock with linkage
Suspension travel front/rear	300/330 mm
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1.60 x 21"; 2.15 x 19" Excel
Tires, front/rear	80/100-21"; 110/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63.5°
Wheel base	1495±10 mm
Ground clearance (unloaded)	375 mm
Seat height	992 mm
Tank capacity	approx. 7.5 liters
Weight (no fuel)	approx. 103.9 kg

2011 KTM 450 SX-F

Engine type	Single cylinder, 4-stroke
Displacement	449.3 cc
Bore x stroke	97 x 60,8 mm (3.82 x 2.39")
Compression ratio	12.5:1
Starter	Electric starter/12V 3 Ah
Transmission	5 gears
Carburetor	Keihin FCR MX 41
Control	4 V/DOHC with finger followers
Lubrication	Pressure lubrication with 3 oil pumps
Engine lubrication	Motorex, SAE 10W50
Primary drive	29:74
Final drive	14:52
Cooling	Liquid cooling
Clutch	Wet multi-disc clutch, operated hydraulically
Ignition	Kokusan

Frame	Central double-cradle-type 25CrMo4
Subframe	Aluminum
Handlebar	Renthal, Aluminum Ø 28/22 mm
Front suspension	WP-USD Ø 48 mm (1.89")
Rear suspension	WP PDS shock absorber
Suspension travel front/rear	300/330 mm
Brakes, front/rear	Disc brakes 260/220 mm (10.24/8.66")
Rims, front/rear	1.6 x 21"; 2.15 x 19" Excel
Tires, front/rear	80/100-21"; 110/90-19"
Chain	5/8 x 1/4"
Main silencer	Aluminum
Steering head angle	63,5°
Wheel base	1495±10 mm
Ground clearance (unloaded)	371 mm
Seat height	992 mm
Tank capacity	approx. 7.5 liters
Weight (no fuel)	approx. 106.9 kg

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KTM 2011 Off-Road Bikes Arrive in June

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