16mm Losi/HB "Thru" O-Ring Shock Pistons (4) (8x1.3/4x1.3 Hole) by M2C

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Frederick, MD

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This product was added to our catalog on December 14, 2016.

This is an optional M2C 16mm Losi/Hot Bodies O-Ring Shock Piston Set, including two 8x1.3mm pistons and two 4x1.3mm/4x1.2mm pistons. These shock pistons are made using Delrin material and incorporate an o-ring for a unique design to slow down movement one way.

As the piston moves through the shock body, oil passes through the large holes, applying pressure to the o-ring, slowing the movement of the piston. This design gives you the option of changing the compression or rebound rate of the shock. If a faster shock re-bound is desired, face the large holes up, if faster compression is desired, face the large holes down.


  • (2) White pistons: 8 holes, 1.3mm (front recommended)
  • (2) Black pistons: 4 holes, 1.3mm; 4 holes 1.2mm

Note: M2C recommends the slots go down.