Trek Mount Kit (ST-CF) Radar Type:Garmin Varia RTL515 (Vertical) Includes the extension

Includes the extension

look at the universal clamp on options instead

Includes safety tether kits

If you don't see one that will work for your bike rack under Accessories

look on the back of the saddle for a clip in name plate or slot as shown

Trek Mount Kit (ST-CF) Radar Type:Garmin Varia RTL515 (Vertical) Includes the extensionThis Trek Mount Kit (ST CF) is attached to the OEM threaded inserts in the bottom of Blendr equipped saddles (see below). The mount positioning provides optimal radar operation and visibility while also providing easy leg over clearance and room for saddle bags. These kits use our latest Shark Tooth Carbon Fiber (ST CF) interface and are made from a carbon fiber reinforced polymer. The kit has a silky black grey appearance and uses our latest ST CF