Shimano RD-U4020 CUES rear derailleur for 2×9-speed – For MTB, touring and city bikes with and without motor
The Shimano CUES RD-U4020 rear derailleur is suitable for city, touring and mountain bikes with 2×9-speed Linkglide drivetrain and, unlike the RD-U3020, is also approved for e-bikes. It features a flat construction, the so-called Shadow Design, which reduces the risk of collision with obstacles. Its smooth, reliable function promotes comfortable everyday biking. The rear derailleur has a total capacity of 41 teeth and is only compatible with 2x gears and 36 teeth on the largest cassette sprocket. It is made of steel and a polyamide-glass fibre composite.
rear derailleur for city, touring and mountain bikes with Shimano Linkglide drivetrain (2×9-speed only)
smooth and defined shifting for comfortable, safe pedaling
flat design prevents getting stuck on obstacles
reliability and stable performance for everyday and leisure use
designed and tested for long-lasting performance also on e-bikes (E-Bike Rated)
a fluorine-coated joint bushing
painted cage
Technology:
Shadow RD
Shadow rear derailleurs from Shimano have a very flat profile, allowing for a more aggressive riding style by minimizing the risk of getting stuck on obstacles. In addition, the single preload ensures that the rear derailleur does not hit the chain stay even on very uneven ground. All of this contributes to a quiet, clean-operating gearshift.