With anglers often fishing a more 'tips up' style this potentially causes a risk to the rod being able to flip over the bite alarm on a savage take, especially when locked up. Even with rods at a low or flat angle a savage take can pull the rod out of a traditional back rest and over the bite alarm - it's happened to us. So the design criteria was for a solid way to prevent this from happening without using an ugly bit of bungee cord or having to attach something to the rod. It also needed to be quick and easy to release and be able to fit a wide range of rod diameters. After many prototypes this design proved itself time and time again. The 'lock and key' mechanism is held under the tension provided by the rubber inserts. The lever provides instant, one finger release of the rod. It also doubles up as a great landing net support!! The Ultralock Plus has 90 degrees of articulation forward and back for perfect rod alignment.
 
The inserts are easily replaceable for use with different rods and landing nets.
 
To measure your rod diameter, wrap a piece of paper around your rod where your back rest would go and mark where it over laps to give the rod's circumference. Check the chart below to see what insert you need.
 
37mm - 12mm
41mm  - 13mm
44mm  - 14mm
47mm  - 15mm
50mm  - 16mm
53mm - 17mm
56mm - 18mm
59mm - 19mm
62mm - 20mm
65mm - 21mm
69mm - 22mm
72mm - 23mm
75mm - 24mm
78mm - 25mm
The inserts are easily replaceable for use with different rods and landing nets.