Description
Garmin Varia Radar Light Seat Post Mount for Trek Speed Concept Gen 3 (2022+)
Garmin compatibility: all models EXCEPTED the camera one.
Compatible with: RTL515 / RTL516 / RVR315 / RTL510 / RTL511 / (RearVue 820?)
NOT Compatible with: RCT715 / RCT716 (Camera light)
It mounts using a single m5 screw (provided) in the threaded hole at the top/back of the speed concept seat post.
A 3rd party Garmin Quarter Turn interface is used (not 3D printed!) to provide a reliable fit.
The mounting hole is offset: you do NOT need to remove the Garmin mount insert to install/remove the mount.
VERSIONS
There are 2 versions:
- SHORT = 25 mm offset
- LONG = 50 mm offset
Benefits
- Secure mount with a replaceable injection molded quarter turn interface
- Single screw mount – easy and fast to install and remove (i.e. for races)
- No collar going around your seat post that could damage the paint job over a larger area
- 2 versions available depending on your need (and you can order both at a discount)
- Made with Carbon Fiber re-enforced material
In both SHORT and LONG mounts, the radar light can be inserted to point down or up (depending on preference and clearance available) as shown in the 2 videos below.










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