Anatra™ Universal Saddle Mount Base

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Regular price $39.99
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Upgrade your cycling setup with the Anatra Universal Mount for Garmin Varia, Magene L508 radars, and GoPro or similar cameras from Bup Labs. Engineered for versatility and durability, this mount base offers a seamless solution for attaching various accessories to your bike seat.

Key Features:

  • Universally compatible design fits a wide range of accessories
  • Durable construction ensures long-lasting performance
  • Easy installation for hassle-free setup
  • Enhance your cycling experience with secure accessory attachment

Revolutionize your biking adventures with the Anatra Universal Saddle Mount Base!


GARMIN AND MAGENE ARMS MUST BE PURCHASED SEPARATELY!
(see compatible options)

NOTE: No mount arm is needed for GoPro, similarly attached devices, or the Garmin eRTL615, but a safety tether is recommended.


Our 5th Generation Anatra universal mount is designed to adapt to most saddle rails (see details below for fit).  The mount uses very flexible mounting options for positioning Garmin Varia radars, Magene radars, or cameras for optimal operation.  This mount attaches to the rear part of the saddle rails.

NOT WARRANTED WITH VARIA MODEL RCT715 MOUNT ARM KITS


Compatibility Features
  • Garmin Varia RTL500. RTL510, RTL515, RVR315
  • Garmin eRTL615 (no arm required)
  • Compatible with the Garmin RCT715 arm but not warranted due to the weight and lack of camera stabilization
  • Magene L508
  • GoPro and compatible cameras weighing up to 150g (1/3 lb)
  • Fits rear saddle rails with a width between 35 and 70 mm (1-3/8" to 2-3/4")
  • Fits saddle rail thickness between 6.5 and 10 mm
  • See details below before ordering
  • Lightweight (56g) and aerodynamic
  • Anti-slip pads prevent movement on the rails
  • Carbon fiber safe contact pads - no metal digging into your rails
  • Securely attached - cannot be removed without tools
  • Locknuts used on all connections that prevent loosening
  • Fully adjustable elevation with a non-slip interface
  • Toothed arm extends and raises the mounting point and prevents rotation
  • Places the mount arm or device 75 mm (3 in) from the clamp point
  • Extend the mount point with common GoPro extensions (optional)
  • Includes class 12.9 hardware (strongest available)

5th Generation Improvements

Anatra locknuts

Based on community voting, we replaced all nuts with locknuts to eliminate the need for threadlocker and ensure screws can't loosen.

Anti-slip pads have been integrated into the mount. They are tough and remain carbon rail safe. The back of the clamp also includes a new tab that keeps the body and clamp in alignment for improved grip. Anatra clamp pads and alignment tab
Anatra neck improvements The neck joint has been strengthened by 50% over the previous generation. It can better withstand accidental sideway impacts that catch the device or neck.
The neck has been thickened and reshaped to accommodate larger devices with bigger footprints and weight. Anatra neck changes
Anatra teeth improvements The teeth prevent slipping and undesired movement. The 5th generation model's teeth have been redesigned to be more durable and better withstand ratcheting when partially assembled without breaking the teeth.

Saddle Compatibility

To check your saddle's compatibility with the Anatra, measure the width between the rails.  The width must be between 35 mm (1-3/8") on the inside, and 70 mm (2-3/4") on the outside.  The rails can be round or oval and must be between 6.5 and 10 mm thick.  You must have approximately 25 to 35 mm (1" - 1.5") of clearance between the mount point and the bottom of the saddle.  The back center top of the saddle must be clear of obstructions in this area (such as large logo plates - we are looking at you Selle...  :).

INTENDED USE

Usage rating 

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


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.