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The History of KTM Dirt Bikes - Specs On The 2010 Models
KTM dirt bikes have become a competitive force not only in the enduro and trail scene, but also around the motocross track. But, unlike their four main Japanese competitors, KTM originates from Austria in Europe.
It began as a dirty ol' metalworking/repair shop in 1934, started by an engineer named Hans Trunkenpolz. Over the next few years they became one of the largest motorbike and car repair workshops in Upper Austria. It was 1951 when KTM began developing its first motorcycle - the R-100. It was considered an engineering success and created quite a stir in the motorcycle industry.With this new-found confidence in themselves as a motorcycle producer, they built a dedicated manufacturing plant in Mattighofen and officially founded KTM - which stands for "Kronreif, Trunkenpolz, Mattighofen" - the two founders names and the place where it all began... Since then KTM dirt bikes have been crossing the finishing line first in many international events including the Paris To Dakar Rally, proving their engineering brilliance in the enduro scene. KTM hit a spot of trouble in the early 90's and found themselves up the proverbial creek without a paddle... They filed for bankruptcy and split the different sectors of the business into independent companies - KTM Motorcycles being the one we're interested in here. Today KTM dirt bikes are everywhere you turn... Whether you're weaving through trails, riding the dunes or hitting the mx track, you're bound to see a blur of black and orange tearing it up. And KTM are showing no signs of fading away in the near future!
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Some 2010 KTM Dirt Bikes To Drool Over

SPECS: Model: KTM 450SX-F Engine: Single cylinder, 4-stroke Displacement: 449.3 cc Bore and Stroke: 97 x 60.8 mm Compression Ratio: 12.5:1 Engine Lubrication: Pressure lubrication with 3 oil pumps Starter: E-Starter/12 V 4 Ah Ignition: Kokusan Carburetor: Keihin FCR MX 41 Control: 4 V/DOHC with finger followers Transmission: 5 gears Cooling: Liquid cooling Clutch: Wet multi-disc clutch, operated hydraulically Primary Drive: 29:74 Final Drive: 14:52 Frame: Central double-cradle-type 25CrMo4 Sub-Frame: Aluminium Handlebar: Renthal, Aluminium 28/22 mm Front Suspension: WP-USD 48mm Rear Suspension: WP PDS shock absorber Front/Rear Suspension Travel: 300/335 mm Front Brake: Disc brake 260mm Rear Brake: Disc brake 220mm Front Rim: 1.60 x 21" Excel Rear Rim: 2.15 x 19" Excel Front/Rear Tyre: 80/100-21"; 110/90-19" Chain: 5/8 x 1/4" Main Silencer: Aluminium Steering Headangle: 63.5 degrees Wheelbase: 1475mm (+ or - 10mm) Seat Height: (unloaded) 985 mm Ground Clearance: 380 mm Fuel Capacity: Approx. 8 L Weight: Approx 104.6 kg (without fuel)

SPECS: Model: KTM 250SX-F Engine: Single cylinder, 4-stroke Displacement: 248.6 cc Bore and Stroke: 76 x 54.8 mm Compression Ratio: 12.8:1 Control: 4 V/DOHC with finger followers Engine Lubrication: Pressure lubrication with 2 oil pumps Starter: Kickstarter Ignition: Kokusan Carburetor: Keihin FCR MX 39 Transmission: 6 gears Clutch: Wet multi-disc clutch, operated hydraulically Primary Drive: 22:68 Final Drive: 13:48 Cooling : Liquid cooled Frame: Central double cradle type 25 crMo4 Sub-Frame: Aluminium Handlebar: Renthal, Aluminium 28/22 mm Front Suspension: WP USD 48mm Rear Suspension: WP PDS shock absorber Front/Rear Suspension Travel: 300/335 mm Front Brake: Disc brake 260mm Rear Brake: Disc brake 220mm Front Rim: 1.60 x 21" Excel Rear Rim: 2.15 x 19" Excel Front/Rear Tyre: 80/100-21"; 100/90-19" Chain: 5/8 x 1/4" Main Silencer: Aluminium Steering Headangle: 63.5 degrees Wheelbase: 1475mm ( + or - 10 mm) Seat Height: 985 mm Ground Clearance: (unloaded) 380 mm Fuel Capacity: Approx 8 L Weight: Approx. 98 kg (without fuel)

SPECS: Model: KTM 530EXC Engine: Single cylinder, 4-stroke Displacement: 510.4 cc Bore and Stroke: 95 x 72 mm Compression Ratio: 11.9:1 Control: 4 V/OHC with rocker levers Engine Lubrication: Pressure lubrication with 3 oil pumps Starter/Battery: Kick and electric starter/12V 4Ah Ignition: Kokusan digital Cooling: Liquid cooled Carburetor: Keihin FCR MX 39 Transmission: 6 gears Clutch: Wet multi-disc clutch, operated hydraulically Primary Drive: 33:76 Final Drive: 15:45 Frame: Central double-cradle-type 25CrMo4 steel Sub-Frame: Aluminium 7020 Handlebar: Neken, Aluminium 28/22 mm Front Suspension: WP USD 48mm Rear Suspension: WP PDS shock absorber Front/Rear Suspension Travel: 300/335 mm Front Brake: Disc brake 260mm Rear Brake: Disc brake 220mm Front Rim: 1.60 x 21" Excel Rear Rim: 2.15 x 18" Excel Front/Rear Tyre: 90/90-21" ; 140/80-18" Chain: X-ring chain 5/8 x 1/4" Main silencer: Aluminium Steering Headangle: 63.5 degrees Wheelbase: 1475mm ( + or - 10mm) Seat Height: 985 mm Ground Clearance: (unloaded) 380 mm Fuel Capacity: Approx 9.5 L Weight: Approx 113.9 kg (without fuel)
You gotta love KTM for their commitment to two-strokes!

SPECS: Model: KTM 250SX Engine type: Single cylinder, 2-stroke Displacement: 249 cc Bore x stroke: 66.4 x 72 mm Starter: Kickstarter Transmission: 5 gears Carburetor: Keihin PWK 36 S AG Control: TVC power valve Engine lubrication: Mixture oil lubrication 1:60 Primary drive: 26:72 Final drive: 13:48 Cooling: Liquid cooled Clutch: Wet multi-disc clutch, operated hydraulically Ignition: Kokusan Frame: Central double-cradle-type 25CrMo4 Subframe: Aluminium Handlebar: Renthal Aluminium 28/22 mm Front suspension: WP USD 48 mm Rear suspension: WP PDS shock absorber Suspension travel front / rear: 300 / 335 mm Front brake: Disc brake 260 Rear brake: Disc brake 220 mm Rims, front / rear: 1.60 x 21" Excel; 2.15 x 19" Excel Tires, front / rear: 80/100-21"; 110/90-19" Chain: 5/8 x 1/4" Main silencer: Aluminium Steering head angle: 63.5 Wheel base: 1475-10 mm Ground clearance: (unloaded) 385 mm Seat height: 985 mm Fuel capacity: Approx. 8 L Weight: (no fuel) Approx. 95.4 kg (208 lbs)

SPECS: Model: KTM 125SX Engine: Single cylinder, 2-stroke Displacement: 124.8cc Bore and Stroke: 54 x 54.5 mm Engine Lubrication: Mixture oil lubrication 1:40 Starter: Kickstarter Ignition: Kokusan Carburetor: Keihin PWK 38S AG Control: Exhaust control Fuel: Premix Cooling : Liquid cooling Transmission: 6 gears Clutch: Wet multi-disc clutch, operated hydraulically Primary Drive: 23:73 Final Drive: 13:50 Frame: Central double-cradle-type 25CrMo4 Sub-Frame: Aluminium Handlebar: Renthal, Aluminium 28/22 mm Front Suspension: WP USD 48 mm Rear Suspension: WP PDS shock absorber Front/Rear Suspension Travel: 300/335 mm Front Brake: Disc brake 260 Rear Brake: Disc brake 220 mm Front Rim: 1.60 x 21"; Excel Rear Rim: 2.15 x 19"; Excel Front/Rear Tyre: 80/100-21"; 100/90-19" Chain: 5/8 x 1/4" Main Silencer: Aluminium Steering Head Angle: 63.5° Wheelbase: 1471-10 mm Seat Height: 985 mm Ground Clearance: 390 mm Fuel Capacity: Approx 8 L Weight: Approx. 90.8 kg
If you are interested in the full range of KTM Dirt Bikes then check out
www.ktmusa.com
An excellent place to find some great deals on KTM dirt bikes is Ebay Live Auctions. Click on any of these below to find out more.
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