Mount Arm Kit (TC) for Garmin Varia Radars (top-center layout, includes tether)

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This kit requires a compatible BUP mount base.

The Top-Center (TC) Model sits lower and closer to the saddle and is less likely to rotate under load (see below).

This add-on mount arm kit uses the standard quarter-turn connector used by all models of Varia radars except the RCT715 (See Garmin RCT715 kit). This kit includes everything needed to attach your Varia to the supported mount bases. Includes a safety tether kit.


    Compatibility Features
    • Garmin Varia models:
      • RTL500
      • RTL510
      • RTL515
      • RVR315
    • Rated for devices that weigh up to 150g (1/3 lb)
    • GoPro slotted connector
    • Compatible Mounts:
      • All Bup Mounts except Topeak MTX
    • Lightweight (14g) and aerodynamic
    • Uses an OEM quarter-turn insert
    • Places the center of gravity above the Varia to help limit rotation under loading
    • Includes a rubber ring to prevent twist out
    • Includes a safety tether kit to ensure the Varia stays with the bike

    INTENDED USE

    Usage rating 

    This component is intended for use with bicycles used on paved or relatively smooth unpaved surfaces. It can be used with electric bikes up to class 3. ASTM International standard F2043-13.


    Features of the Garmin Varia TC Arm

    BUP quarter-turn insert comparison

    Our quarter-turn inserts are the same as the Garmin OEM quarter-turn inserts. These inserts are thicker and harder to flex but unfortunately much more expensive to manufacture. That is why virtually all 3rd party computer and Varia mounts on the market use  these inexpensive inserts with two holes for flat head screws. They are thinner and, as we learned, more prone to failure.

    Our mount arms have a tab at the bottom of the arm to brace the Varia and limit the torque on the quarter-turn. This has a greater affect on the RTL 510 and 515 due to their length and offset battery weight. While inserts are sacrificial, this design feature also helps to lengthen the life of the insert. BUP mount arm pressure tab
    Safety tether with arm The arm places the pivot point above the Varia. This helps to counteract the pivoting due to having the weight below the mount connection point. This means less force is required when tightening the arm to prevent unwanted rotation from potholes and general vibrations.

    All BUP mounts are manufactured and hand assembled in the USA

    Patent # US D902,014 S, D893,285 S


    The Garmin Varia, GoPro, saddle bag, and saddle are shown for illustrative purposes only and are not included.

    This product is not affiliated with, endorsed by or in any way associated with GoPro Inc. or its products and services. GoPro, HERO and their respective logos are trademarks or registered trademarks of GoPro, Inc..

    This product is not affiliated with, endorsed by or in any way associated with Garmin Inc. or its products and services. Garmin, Varia and their respective logos are trademarks or registered trademarks of Garmin, Inc.



     

    Frequently Asked Questions

    Please see our mount configuration helper, the mount base comparison page, and the mount arm comparison page to determine the correct options for your setup.

    Please see our mount configuration helper, the mount base comparison page, and the mount arm comparison page to determine the correct options for your setup.

    Our mounts are made from a new state-of-the-art material called bio-plastic that is derived from plants instead of petroleum. It is stronger than traditional plastic and able to withstand repeated impacts better. Some components are made from injection molded plastic or steel.

    We source all raw materials, manufacture the primary components, assemble, and package the products in the United States. Some accessory items or minor components are imported (noted in the product details).

    We currently ship within the U.S., most U.S. territories, and Canada. Please see the international shipping page for more details.