Search  for anything...
TUSITA

TUSITA Seat Rail Mount Kit Compatible with Garmin Varia RTL510 RTL515 RVR315, RearVue 820 Rearview

  • Based on 557 reviews
Condition: New
Checking for the best price...
$20.90 Why this price?
4th of July Sale · 97% off was $699.99

Buy Now, Pay Later

As low as $5 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Jul 7
Order within 13 hours and 1 minute
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: Varia RTL510 RTL515 RVR315 Rearview Mount


Features

  • CompatibilityThis seat rail mount kit compatible with Garmin Varia RTL510 RTL515 RVR315, Varia RearVue 820 Tail Light.
  • Durable ConstructionMade of marine-grade aluminum, advanced injection moulded co-polymer. It is strong enough to keep your Varia radar or tail light on your bicycle no matter the terrain
  • ConfidenceWhile your Varia or similar radar system increases your awareness and personal security when youre out on the road, our mount builds on the confidence providing a strong and secure mount for your Varia
  • Safe & SecureWe are confident that upgrading to a TUSITA seat rail mount kit will give you piece of mind knowing youve chosen the best way to securely lock and perfectly position your Varia radar or tail light on your bike so you can focus on your goals, whether that be having fun or going fast, or both

Brand: TUSITA


Color: black


Compatible Devices: Garmin RTL510,Garmin Varia RTL515,Garmin Varia RVR315,Garmin Varia RearVue 820


Compatible Phone Models: Garmin RTL510,Garmin Varia RTL515,Garmin Varia RVR315,Garmin Varia RearVue 820


Mounting Type: Seat Mount


Compatible Devices: Garmin RTL510,Garmin Varia RTL515,Garmin Varia RVR315,Garmin Varia RearVue 820


Compatible Phone Models: Garmin RTL510,Garmin Varia RTL515,Garmin Varia RVR315,Garmin Varia RearVue 820


Mounting Type: Seat Mount


Additional Features: Lightweight


Compatible with Vehicle Type: Bicycle


Unit Count: 1.0 Count


Item Weight: 0.07 Kilograms


Color: black


Enclosure Material: High strength composite, Marine-Grade Aluminum


Brand: TUSITA


Model Name: T00202A


Model Number: T00202A


Mfr Part Number: T00202A


Warranty Description: 18 Months Warranty


Built-In Media: 1 x Seat rail clamp, 1 x Friction flange mount extender, 1 x Quarter-turn adapter, 4 x M5 bolts 1 x Hex (allen) key


Manufacturer: TUSITA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • If I Could Give It 6 Stars, I Would
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
This mount has been absolutely outstanding for securing my Garmin Varia radar. Once installed, it holds the unit firmly and securely with no rattling, shifting, or concerns about it moving during rides - even on rough pavement. I now have this installed on my road bike and my hybrid city e-bike. I move my Garmin Varia 515 between the two bikes...easily! It's versatile in that way, and btw, very light! I’ve used enough cycling accessories over the years to know that “good enough” mounting systems usually aren’t good enough when you’re trusting an expensive device on the back of your bike. This one inspires confidence immediately. The fit and finish are excellent, installation was straightforward, and the design feels both sturdy and thoughtfully engineered. Honestly, it works so well that I barely think about it anymore, which is exactly what you want from a bike accessory. If Amazon allowed 6-star reviews, this would get one from me. ... show more
Reviewed in the United States on May 15, 2026 by Rick from Encino
    • TUSITA Seat Rail Mount Kit – Great Positioning, Just Don’t Overtighten
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
This mount does exactly what it’s supposed to do, but a word of caution: the metal is light and can break if you crank down on it too aggressively. I’ve seen reviews from people who snapped it during installation. That said, I had no issues at all. You just need to use common sense. This is a mount for a Garmin Varia—not something designed to hold 50 pounds. Tighten it snug, not like you’re torquing a lug nut. If you install it properly, it holds firm and feels secure. What I really like is the position it puts the Varia in. It sits perfectly for visibility and gives a clear line of sight to approaching cars. It looks clean and professional once installed. Overall, the quality is very good, and the price is excellent compared to Garmin-branded options. Just install it carefully and it performs exactly as intended. ... show more
Reviewed in the United States on February 2, 2026 by Vernon E Alexander
    • Convenient mounting up high and behind saddle bag Convenient mounting up high and behind saddle bag
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
Review Image by Abraham Cohn
Review Image by Abraham Cohn
Review Image by Abraham Cohn
Review Image by Abraham Cohn
Works great, allows mounting in much more visible location behind small saddle bag. Nice and rigid mount. Some reviews complain about snapped bracket... Just don't overtighten. I also applied removable strength loctite to the 2 bracket screws. See photo comparisons with this bracket vs the standard Garmin Varia seat tube mount. It is much more visible and up away from wheel in the new setup. ... show more
Reviewed in the United States on April 12, 2026 Reviewed in the United States on April 12, 2026 by Abraham Cohn
    • Great mount just secure the screws that hold it
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
Works great but the screws will fall out when riding . Either use lock tight or double nut them they will work loose . The mount is great adjustable and well made .
Reviewed in the United States on June 15, 2025 by John Harris
    • great product
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
well made, fits well, flexible for varied situations. the bolts feel lightweight and heres the puzzling part: they seem like titanium. they’re the color of titanium, non-magnetic, and not as hard as steel. compared to a frame boss on a ti merlin bike under and eye loupe and yeah, the bolts look titanium ... show more
Reviewed in the United States on May 22, 2026 by JesseN
    • Sturdy, easy to install, good value
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
Very sturdy and easy to install. Fit my fizik bike rails well. Price is very reasonable compared to Garmin brand and seems just as solid. Like the way it keeps my radar and light high up for better visibility and detection. Also nice not to have to deal with the mount on the seat post when putting the bike into the work stand. Overall a good buy. ... show more
Reviewed in the United States on April 12, 2026 by BAH
    • Basically unusable
Size: Varia RTL510 RTL515 RVR315 Rearview Mount
When mounted, my varia tail light radar keeps pointing down instead of straight. There's a screw that should tighten it and maintain its position facing straight behind the bike, but it doesn't work properly and as I ride, the light ends falling and pointing down instead. Don't waste your time with this. It's low quality.. ... show more
Reviewed in the United States on September 30, 2025 by Thales Braga
    • Prevents seat movement fwd
Size: Varia RCT715 Mount
Im torn between 4-5 stars. The mount works great, and is even solid mounted. Not coming off. But i see a huge flaw in the design. It prevents your seat from sliding all the way frwd. And though im lucky with my adjustments, if you are someone whose adjustments require the seat more forward, this may pose a problem. ... show more
Reviewed in the United States on December 1, 2025 by Brandon

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...