Garmin · Cycling
Garmin Varia™ RVR315 in the Rearview Radar configuration adds an extra layer of awareness for cyclists who ride on roads shared with vehicle traffic. Mounted on the seatpost, it detects vehicles approaching from behind and delivers alerts to help riders stay informed about what’s coming.
This compact radar pairs with an Edge® bike computer or a compatible smartphone, and it can also work with select Garmin smartwatches for alerts on the wrist. With a small footprint, broad bike compatibility, and 7 hours of battery life, it’s a practical choice for commuters, training riders, and weekend cyclists who want clearer awareness on every ride.
Varia™ RVR315 provides visual and audible alerts for vehicles approaching from behind up to 153 yards (140 meters) away. It’s designed to boost on-road awareness by letting riders know when traffic is coming, so attention can stay where it belongs: on the ride ahead.
Pair the radar to an Edge® bike computer or a compatible smartphone, or use both. It also works with select Garmin smartwatches, providing haptic alerts on the wrist; select models can additionally provide voice alerts for approaching vehicles and more.
The sleek, vertical design mounts to the seatpost of almost any road-use bicycle. It’s built to help maintain comfortable leg clearance while keeping the radar positioned for effective use, and the included mounting hardware comes with shims for round, aero and d-shaped seat posts.
Connectivity
Varia™ RVR315 is built around rear radar detection to help riders stay aware of traffic approaching from behind. Alerts can be displayed on an Edge® bike computer or on a compatible smartphone, providing a clear way to track approaching vehicles while riding. For riders who prefer app-based ride setups, it also supports Varia™ app compatibility for radar visuals and alerts.
Navigation
When paired with a compatible smartphone, Varia™ RVR315 can integrate with compatible third-party apps, including Ride with GPS, to overlay rearview radar alerts on maps. This helps riders keep key ride data and approaching-vehicle awareness together in one view, while still retaining the option to run the radar alongside an Edge® device.
Durability
With an IPX7 water rating and a compact 2.8" x 1.8" x 0.8" (72 x 40 x 20 mm) build, Varia™ RVR315 is made to fit cleanly on the bike without adding bulk. It weighs 1.8 oz (51.0 g) and offers a 7 hours battery life to support longer rides between charges. Additional details are listed in the specifications below.
| Part Number | 010-02252-00 |
|---|---|
| Model | Varia™ RVR315 |
| Configuration | Rearview Radar |
| ANT+® | Yes (radar) |
| Dimension | 2.8" x 1.8" x 0.8" (72 x 40 x 20 mm) |
| Weight | 1.8 oz (51.0 g) |
| Water rating | IPX7 |
| Battery life | 7 hours |
| BLE | Yes (radar) |
| Radar beam width | 40° |
| RVR315 |
| Mounting hardware (includes shims for round, aero and d-shaped seat posts) |
| Power cable |
| Documentation |
| General | Rear radar |
|---|---|
| Connectivity | Varia™ app compatibility |
