Quick Summary
The TUSITA Seat Post Quarter Turn Mount is a seat post mount for Garmin Varia rear bike radar and rearview devices. The product name and description point to compatibility with Varia RTL510, RTL515, RVR315 and RearVue 820, along with seatpost sizes of 27.2 mm, 30.9 mm and 31.6 mm.
If you are choosing between offers, confirm that your device model and seatpost size match the version you need. The mount is also described as using a quarter turn design.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | TUSITA. Useful for matching the mount to the correct product line. |
| Product type | Seat post quarter turn mount. Check that you need a seatpost-mounted solution rather than another style of attachment. |
| Compatible devices | Garmin Varia RTL510, RTL515, RVR315 and RearVue 820. Match the device model before buying. |
| Seatpost sizes | 27.2 mm, 30.9 mm and 31.6 mm. Compare against your bike’s seatpost size. |
| Design | Quarter turn mount. Confirm that this mounting style matches your setup. |
What to Compare Before Buying
- Device model: Match the exact Varia or RearVue model listed for this mount.
- Seatpost size: Compare your bike’s seatpost size with the stated 27.2 mm, 30.9 mm or 31.6 mm fit.
- Mounting style: Make sure a quarter turn mount is the style you want for your setup.
- Installation needs: The description points to tool-free installation, so check whether that matches how you plan to set it up.
Compatibility, Size and Fit
This mount is described for Garmin Varia RTL510, RTL515, RVR315 and RearVue 820, and for 27.2 mm, 30.9 mm and 31.6 mm seatposts. Those are the main details to check before choosing an offer.
Because fit depends on both the device and the seatpost size, the safest approach is to compare both numbers before purchase.
Before You Decide
Confirm the exact Garmin Varia or RearVue model, then match your seatpost size to one of the listed fit options. If you need a different mounting style or a different size, choose a different version before ordering.
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