Cycle News

Cycle News 2020 Issue 07 February 19

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

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VOLUME 57 ISSUE 7 FEBRUARY 19, 2020 P83 catalytic convertor, but the boffins who charge out Euro 5 rules have dictated a second cat needed to be fitted if the 2020 bike was to pass regulations. Despite this, the now 54mm front and 60mm rear header pipe system weighs a claimed 2.2 pounds less than in 2017, for a total weight of 22.49 pounds. THE CHASSIS By far the biggest difference between the 2017 Super Duke and the one you see before you is the chassis—it's orange and made from steel, but that's about where the similarities end. Stiffness, or rather, an increase in stiffness was the name of the game for 2020. The motor sits 38mm higher and is used as a stressed member of the chassis as usual but features a new downtube either side the front of the motor to help increase stiffness three times over the 2017 model. The engineers have raised the center of gravity and reduced the fork offset by 3mm thanks to the new, 800-gram lighter triple clamps, giving a sharper feel from the front-end under braking and cornering. At the rear, the lighter single- sided swingarm has been retained but is now 15 percent stiffer than before, again in the aid of better Mission control for the Super Duke. The bar is now a touch lower than before, helping put more weight on the front. front and center, wrapping itself either side of the steering head, and KTM has used the same split-down-the-middle headlight, allowing as much air as possible into the chamber and thus the more compact cylinder heads. Inside the airbox sits new fixed intake resonators, designed to help smooth out the initial kick below 5000 rpm. The dual spark ignition remains, with new coils fitted for a cleaner spark. With the heads being squished down, the overall piston size has been slightly reduced, all help- ing to decrease oscillating mass within the motor. The crank itself has been slightly beefed up on the generator side for better stability, although the engineers have been able to trim a very respectable 800 grams off the crank mass. The gearbox has been given an overhaul for a shorter and lighter shift via a machined splined shaft and new bronze and copper coating on the shift forks. Plus, the gearshift (now reversible for race or road) shifts easily, and you can get a quickshifter from the PowerParts catalog. Externally, one of the biggest changes for the motor has been the new exhaust. The previous generation SD had only a single

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