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Shimano GRX RD-RX812 rear derailleur 1/11-speed

97087 / 4550170448882 / IRDRX812
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  • SHIMANO GRX Rear Derailleur 11-speed (42T max low sprocket)

    RD-RX812

    SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 42T max low sprocket - 11-speed

    With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max.

    • Silent and uninterrupted rear shifting on rough terrain
    • Adjustable chain stabilizer prevents chain slapping and drops
    • SHIMANO SHADOW RD+
    • Smooth and reliable mixed surface shifting
    • Switch stabilizer ON/OFF to match the terrain
    • Gravel-tuned clutch tension
    • Compatible with current road DUAL CONTROL LEVER
    • Top sprocket: Max. 11T/Min. 11T
    • Low sprocket: Max. 42T/Min. 40T
    • Total capacity: 31T


    Specifications
    • Series: SHIMANO GRX 11-speed
    • Weight: 267 g
    • B-Axle Hollow axle: Yes
    • Cable adjuster: Yes
    • Compatible chain HG-EV: 11-speed/HG-X11
    • Direct attachment (Conventional): Yes
    • Fluoric coated link bushings: 4
    • Low sprocket Max.: 42T
    • Low sprocket Min.: 40T
    • Pulley G pulley bearing: Yes
    • Pulley Sunken type pulley bolt: Yes
    • Pulley Teeth: 11T
    • Pulley T pulley bearing: Yes
    • Rear speeds: 11
    • Top-Normal Spring Type: SHIMANO SHADOW RD+
    • Top sprocket Max.: 11T
    • Top sprocket Min.: 11T
    • Total capacity: 31T


    Technologies:

    SHIMANO SHADOW RD+
    • Less distraction quiet drive train
    • Rear derailleur stabilizer reduces chain slap
    • Simple solution for chain drop
    • Lighter and more efficient than roller type chain device

    This article cannot be shipped to countries outside of the European Union and all other countires of the European Free Trade Association (EFTA).
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    • 1x Shimano GRX RD-RX812 rear derailleur
  • Show all items from ShimanoShimano is a Japanese multinational manufacturer of cycling components, fishing tackle, and rowing equipment. The company was founded in 1921 and is headquartered in Sakai, Osaka, Japan. Shimano is one of the largest and most well-known manufacturers of cycling components in the world, and its products are used by professional and amateur cyclists alike.

    Shimano's cycling components include a wide range of products, such as rear derailleurs, front derailleurs, cranksets, disc brakes, and gears. The company's products are known for their high quality, durability, and performance. Shimano's road bike components are divided into different product lines, such as Dura-Ace, Ultegra, and 105, with Dura-Ace being the highest-end line and 105 being the most affordable. Shimano also offers components for mountain bikes, including the XTR, XT, and SLX lines.

    One of Shimano's most popular and well-known products is its SPD (Shimano Pedaling Dynamics) system, which is a type of clipless pedal. The SPD system allows for a more efficient transfer of power from the rider's leg to the pedal, and it is widely used by both road and mountain bikers. Shimano also offers a wide range of fishing tackle, including fishing reels, rods, and lures.

    Shimano is also known for its commitment to sustainability, for example, in 2020 Shimano announced its goal to reduce CO2 emissions from its factories by 30% by 2025. Additionally, Shimano supports various cycling-related organizations and events, such as the Tour de France and the Giro d'Italia.

    Overall, Shimano is a well-established and respected company in the cycling industry, known for its high-quality and durable products, as well as its commitment to sustainability and support of the cycling community.
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