KOM Seatpost Radar Mount for Garmin Varia

Fits: Garmin Varia RearVue 820, RTL510 and RTL515, Wahoo TRACKR and other Garmin quarter-turn rear devices; not the Varia RCT715. Seatposts 27.2, 30.9 and 31.6mm round, plus D-shaped and aero posts with the KOM Hexa-Grasp Shim.

The KOM seatpost mount for a Garmin Varia or Wahoo TRACKR. An ATOP dial, the same lacing system as a cycling shoe, cinches it to the post with a twist, so it goes on and comes off in seconds and moves between bikes. No rubber bands to stretch and fail.

Fits Garmin Varia RearVue 820, RTL510 and RTL515, Wahoo TRACKR, and any rear device on the Garmin quarter-turn system. KOM says it is not compatible with the Varia RCT715, the camera model. KOM lists it for 27.2, 30.9 and 31.6mm round posts and for D-shaped and aero posts; the lacing and rubber pad will not scratch carbon or aluminum.

Which mount: this one if the radar moves between bikes or your post is not plain round. If it stays on one road bike with a saddle bag, the KOM Saddle Bag has the mount built in. If your post is D-shaped or aero, add the KOM Hexa-Grasp Shim so the dial has something solid to cinch against.

Why we carry it: the mount we would put on a gravel bike or a second road bike. Reviewers with flat-backed aero posts are the ones who wanted the shim, so order it with the mount if that is your bike.