1981 KTM Motocross Motorcycles - 2-Page Vintage Ad For Sale
1981 KTM Motocross Motorcycles - 2-Page Vintage Ad:
$16.95
1981 KTM Motocross Motorcycles - 2-Page Vintage AdOriginal, vintage motorcycle advertisement / article.Page Size: Approx. 8" x 11" (21 cm x 28 cm)Condition: Good
MEET THE NEW 1981 KTMsWater-cooling and earth shakingBy the ever-inquisitive staff of Dirt BikeAmong the interesting facts in thedirt bike universe that are accept-ed by all is the undeniable one: KTMknows how to make horsepower. Afterall, didn’t their 350 run right alongsidethe Open bikes for a few years? Andthe 420 has won more than its share ofdesert and cross-country events.Therefore, it must come as sort of ashock to the competition when KTMchooses to go the cubic-inch route.Think about it: 495 cubic centimetersof unadulterated horsepower. It’s as ifsomeone gave the company a cleansheet and said, “Go ahead and slittheir throats.’’The last word we got from the KTMengineering people was this: “We aretired of this horsepower race with theYamaha 465 and the Maico 450 and soforth. We feel that we have the capa-bility of producing 50 horsepower atthe rear wheel. This is all that anyoneshould really want. Anyone rational,that is.”Hmmmm. Rational? Do we need a495? Do we need a 490? Hell’s fire, dowe even need a 465?Well, between you and us, rationalbehavior never sold a single motor-cycle in the history of mankind. So,without much further ado, we herebypresent the 1981 line of KTM, which,for all practical purposes, shall hereinbe known as the Austrian Overkills.495 MOTOCROSSLeading the parade of new bikesfrom KTM is the monster 495cc moto-crosser. A massive 92 4- millimeter pis-ton rides inside the big-finned engine.A glance at the spec sheet shows thatthe newest Open bike is getting veryclose to 13 inches of travel at the rearwheel.No reports of actual real wheel dynopower are available yet, but our ownVic Krause (Mr. Know-It-All) rode a495 at the dealer preview in Ohio andsaid: “It’s the most frightening bikeI’ve ever ridden. There’s horsepowereverywhere!”As with all of the new KTMs, redand blue trim accents the clean whiteplastic.For those who demand a little lesspower, this same basic bike is availableas a 420cc bike, with the bore being theonly major difference. Both bikes, bythe way, have primary kickstart.Engine: KTM 495cc with magnesium crankcasesHorsepower: 53 DIN at7,000 rpmBore/Stroke: 92.25mm/74mmTransmission: 5-speed with primary kickstartInduction: piston port with 40mm Bing with power jetFrame/Swingarm: chromemoly/heat treated aluminum extrusionSuspension, front: 38mm Marzocchi with300mm (12 inches) travelSuspension, rear: Ohlins shocks with320mm (12.8 inches) travelWheels; Metzeler tires with Sun rimsWeight: 104 kg (228 pounds)390WRThis machine has been around for along time, with small changes updat-ing it yearly. This year, the new Foxshocks at the rear are noteworthy, as isthe primary kickstart. Weight is stillheavy, with 252 pounds dry being thenumber. A 40 Bing carburetes thisnear bullet-proof engine. Cases arebased on the 420 bike.Engine; new magnesium crankcasesHorsepower: 44 DIN at 7,500 rpmBore/Stroke. 82mm/74mmTransmission: 5-speed wide ratio withprimary kickstartInduction; piston port with 40mm BingFrame/Swingarm: chromemoly/heat treated aluminum extrusionSuspension, front; Marzocchi 38mm with300mm (12 inches) travelSuspension, rear: MX Fox Shox with284mm (11.4 inches) travelWeight: 115 kg (252 pounds)250 MOTOCROSS AND 250WRWhile the 250 motocrosser and theenduro bike are basically the samepackage, enough differences are thereto call them two different bikes. TheMXer has a five-speed, close ratiogearbox and the enduro bike features awide ratio, six-speeder. The powerplants are the same, all the way downto identical 38mm Bing carbs. Sevenpounds difference is all the penaltyyou have to pay to have lights and le-galities. Travel is, naturally, slightlyless on the enduro bike, but it sportsFox shocks as standard items. Lots ofquality hardware.Engine: new KTM 246cc with magnesium crankcasesHorsepower: 42 DIN at7,500 rpmBore/Stroke: 71mm/62mmTransmission: 5-speed close ratio with primary kick6-speed wide ratio with primary kickInduction: piston port with 38mm BingFrame/swingarm: chromemoly/heat treated aluminum extrusion250 mx Suspension, front: 38mm Marzocchi with300mm (12 inches) travelSuspension, rear: Ohlins shocks with310mm (12.4 inches) travelWheels: Metzeler tires with Sun rimsWeight: 99 kg (217 pounds)250wr Suspension, front: Marzocchi 38mm with300mm (12inches) travelSuspension, rear: Fox Shox with284mm (11.4 inches) travelWheels: Metzeler tires with Sun rimsWeight: 102 kg (224 pounds)125WR AND 125RV MOTOCROSSWith the 125 Enduro class startingto regain popularity once more, the125WR makes the most serious effortwe’ve seen to date. It’s a traditional125 all across the board and is basic-ally a 125 MXer with a wide-ratiogearbox and slightly less travel. Foxshocks do the job at the rear (!) and thedry weight is listed at just slightly over200 pounds, lights and all. Handsomeunit.KTM is loaded with 125s for 1981.The RV shown here is the air-cooledversion; a more-or-less traditional de-sign, except for the case reed. Mr. Kalso rode this bike and noted that itwas extremely fast. The air-cooledversion weighs in about 5 pounds lessthan the waterpumper. Ohlins shocksand buckets of travel at both endscomplete the package.Engine; KTM 124cc with magnesium crankcases,air-cooledHorsepower: 28.5 DIN at9,800 rpmBore/Stroke: 54mm/54mmTransmission. 6-speed wide ratio withprimary kickstartInduction: crankcase reed valve withpiston port with 32mm BingFrame/Swingarm: chromemoly/heat treated aluminum extrusionSuspension front: 35mm Marzocchi with270mm 118.8 inches) travelSuspension, rear: Fox Shox with284mm <11,4 inches) travelWheels: Metzeler tires with Sun rimsWeight. 93 kg (204 pounds)125LC MOTOCROSSHere’s the baby that had everyonebuzzing at the dealer show: the 125LC!It’s a water-cooled machine with theradiator cleverly mounted underneaththe gas tank. The shape of the tank it-self forces the cooling air down on theradiator. This eliminates the problemof hose routing and carrying extraweight up on the forks. Over 12 inchesof travel abounds. Look for a test onthisbike very soon.Engine: KTM 124cc with magnesium crankcases withliquid (or water-) cooled cylinder and cylinder headHorsepower: 28.5 DIN at 9,800 rpmBore/Stroke: 54mm/54mmTransmission: 6-speed close ratio withprimary kickstartInduction: case reed valve withpiston port with 32mm BingFrame/Swingarm: chromemoly/heat treated aluminum extrusionSuspension, front: 38mm Marzocchi with300mm (12 inches) travelSuspension, rear: Ohlins shocks with300mm (12 inches) travelWheels: Metzeler tires with Sun rimsWeight:Air-cooled: 89 kg (195pounds)Water-cooled: 91 kg (200 pounds)16685-AL-8102-22
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