---
product_id: 679099171
title: "TUSITA Quarter Turn Seatpost Brackets Compatible with Garmin Varia Radar Rear Bike Light RTL510 RTL515 RVR315 - Bicycle Bars 27.2mm 30.9mm 31.6mm - MTB Accessories"
brand: "tusita"
price: "€ 67.65"
currency: EUR
in_stock: true
reviews_count: 5
category: "Tusita"
url: https://www.desertcart.fi/products/679099171-tusita-quarter-turn-seatpost-brackets-compatible-with-garmin-varia-radar
store_origin: FI
region: Finland
---

# Secure quarter-turn locking system Durable polycarbonate build Fits 3 seatpost sizes (27.2/30.9/31.6mm) TUSITA Quarter Turn Seatpost Brackets Compatible with Garmin Varia Radar Rear Bike Light RTL510 RTL515 RVR315 - Bicycle Bars 27.2mm 30.9mm 31.6mm - MTB Accessories

**Brand:** tusita
**Price:** € 67.65
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Lock in your ride’s smartest upgrade—secure, sleek, and built to perform!

## Quick Answers

- **What is this?** TUSITA Quarter Turn Seatpost Brackets Compatible with Garmin Varia Radar Rear Bike Light RTL510 RTL515 RVR315 - Bicycle Bars 27.2mm 30.9mm 31.6mm - MTB Accessories by tusita
- **How much does it cost?** € 67.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/679099171-tusita-quarter-turn-seatpost-brackets-compatible-with-garmin-varia-radar)

## Best For

- tusita enthusiasts

## Why This Product

- Trusted tusita brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rock-Solid Security:** Quarter-turn mount with Allen bolt ensures your radar or tail light stays locked in place, no wobble, no worries.
- • **Lightweight Yet Rugged:** Advanced injection-molded polycarbonate offers military-grade durability without weighing you down.
- • **Universal Fit for Every Ride:** Seamlessly compatible with Garmin Varia RTL510, RTL515, and RVR315 across multiple seatpost diameters.
- • **Peace of Mind on Every Terrain:** Engineered to withstand rough trails and urban commutes alike, so you can focus on speed and safety.
- • **Effortless One-Hand Installation:** Quick attach/detach design lets you mount or remove your device on the fly—perfect for busy pros on the move.

## Overview

The TUSITA Quarter Turn Seatpost Bracket is a precision-engineered polycarbonate mount designed for Garmin Varia rear bike radars and tail lights. Compatible with 27.2mm, 30.9mm, and 31.6mm seatposts, it features a secure quarter-turn locking mechanism with included Allen key for effortless, wobble-free installation. Lightweight yet highly durable, this mount ensures your safety device stays firmly in place across all terrains, making it an essential upgrade for serious cyclists seeking reliability and peace of mind.

## Description

Overview Designed to complement your devices, this mount is strong enough to hold your varia on your bike, no matter the terrain. Highlights Lightweight, strong and aerodynamic It is very easy to install and disassemble from any bicycle handlebar. Technical Specifications Material: polycarbonate. Wide Compatibility Compatible with Garmin Varia RTL510 Compatible with Garmin Varia RTL515 Compatible with Garmin Varia TL300 Compatible with Garmin Varia rearview mirror Box contents 1 x TUSITA Quarter Turn Seatpost Mount

Review: Well made and well worth it - I lost my Garmin Varia RTL515 rear light/radar to a 3D printed mount that failed mid-ride and I didn't realise until I was nearly home. I should have used a simple lanyard to attach the light to my seatpost, but these Tusita mounts are so well made and such good value that I got one for both my bikes, replacing the Garmin rubber band mounts, which always felt wobbly. The construction is top notch and they come with a range of spacers for different diameter seatposts. The bracket is hinged on one side and uses an Allen bolt (key included) to secure it. Mounting a light feels so positive and can be done one-handed, whereas with rubberband mounts, I found I had to hold the mount to prevent it from turning as I inserted or removed the light. I highly recommend the Tusita seatpost mount. Five stars...well, ten if you count both mounts :)
Review: Very secure attachment for the Garmin radar - Fits my round saddle post & is a secure attachment for any Garmin or other quarter turn device.

## Features

- 【Wide Compatibility】This quarter turn seat post mount is compatible with Garmin Varia Rear Bike Radar, Varia RTL510, Varia RTL515, Varia RVR315. It is widely used in road bikes with 27.2mm, 30.9mm and 31.6mm bars, helps keep your Varia radar or tail light on your bike, no matter the terrain
- 【More Versatile】Compatible with reversing radar variant, variant smart bike lights
- 【DURABLE CONSTRUCTION】 Created from an advanced injection molded copolymer. It is strong enough to keep your Varia radar or tail light on your bike, no matter the terrain
- 【Safe and Secure】 We are confident that upgrading to a TUSITA Varia seatpost mount will give you peace of mind knowing you've chosen the best way to securely lock and position your Varia radar or taillight perfectly on your bike so you can focus on your goals, whether it's having fun or going fast, or both

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Z7Q44P3 |
| Additional Features | Lightweight |
| Best Sellers Rank | #52,877 in Sporting Goods ( See Top 100 in Sporting Goods ) #59 in Sport Gadget Mounts |
| Brand | TUSITA |
| Compatible Devices | Garmin Varia Rearview Bike Radar | RTL510 RTL515 RVR315 Diameter 27.2 mm 30.9 31.6 Seatpost |
| Compatible Phone Models | Garmin Varia Rearview Bike Radar RTL510 RTL515 RVR315 |
| Compatible devices | Garmin Varia Rearview Bike Radar | RTL510 RTL515 RVR315 Diameter 27.2 mm 30.9 31.6 Seatpost |
| Compatible phone models | Garmin Varia Rearview Bike Radar RTL510 RTL515 RVR315 |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.6 out of 5 stars 1,137 Reviews |
| Enclosure Material | Polycarbonate |
| Manufacturer | TUSITA |
| Material | Polycarbonate |
| Model Name | Garmin Varia Rearview Bike Radar RTL510 RTL515 RVR315 |
| Model Number | T00076 |
| Mounting Type | Seat Mount |
| Mounting type | Seat Mount |
| Shape | Rectangular |
| Special features | Lightweight |
| Water Resistance Level | Water Resistant |
| Weight Capacity Maximum | 0.07 Kilograms |

## Product Details

- **Brand:** TUSITA
- **Compatible devices:** Garmin Varia Rearview Bike Radar | RTL510 RTL515 RVR315 Diameter 27.2 mm 30.9 31.6 Seatpost
- **Compatible phone models:** Garmin Varia Rearview Bike Radar RTL510 RTL515 RVR315
- **Mounting type:** Seat Mount
- **Special features:** Lightweight

## Images

![TUSITA Quarter Turn Seatpost Brackets Compatible with Garmin Varia Radar Rear Bike Light RTL510 RTL515 RVR315 - Bicycle Bars 27.2mm 30.9mm 31.6mm - MTB Accessories - Image 1](https://m.media-amazon.com/images/I/61TatcoZmHS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made and well worth it
*by D***Y on 4 December 2024*

I lost my Garmin Varia RTL515 rear light/radar to a 3D printed mount that failed mid-ride and I didn't realise until I was nearly home. I should have used a simple lanyard to attach the light to my seatpost, but these Tusita mounts are so well made and such good value that I got one for both my bikes, replacing the Garmin rubber band mounts, which always felt wobbly. The construction is top notch and they come with a range of spacers for different diameter seatposts. The bracket is hinged on one side and uses an Allen bolt (key included) to secure it. Mounting a light feels so positive and can be done one-handed, whereas with rubberband mounts, I found I had to hold the mount to prevent it from turning as I inserted or removed the light. I highly recommend the Tusita seatpost mount. Five stars...well, ten if you count both mounts :)

### ⭐⭐⭐⭐⭐ Very secure attachment for the Garmin radar
*by J***L on 8 May 2024*

Fits my round saddle post & is a secure attachment for any Garmin or other quarter turn device.

### ⭐⭐⭐⭐⭐ Muy buena opción para el radar de garmin
*by J***J on 16 December 2025*

Lo he puesto en la tija de la bici para tener bien sujeto el radar de garmin, estoy contento porque te permite estar seguro, quitarlo y ponerlo facilmente.

## Frequently Bought Together

- TUSITA Seat Post Quarter Turn Mount Compatible with Garmin Varia Rearview Bike Radar Tail Light RTL510 RTL515 RVR315 - Cycling 27.2mm 30.9mm 31.6mm bars Seatpost Mounts - Bicycle Road MTB Accessories
- Garmin Unisex Rearview Cycling Radar, Black, One Size
- Anti-lost Protective Case for Garmin Varia RTL515 Radar Tail Light (Case for RTL515)

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**Shop now:** [https://www.desertcart.fi/products/679099171-tusita-quarter-turn-seatpost-brackets-compatible-with-garmin-varia-radar](https://www.desertcart.fi/products/679099171-tusita-quarter-turn-seatpost-brackets-compatible-with-garmin-varia-radar)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*