Vertex 51.96mm Standard Bore Cast Piston Kit (23879B)
- Piston is heat-treated with a T-5 hardening and tempering cycle
- Piston skirt is coated with high-tech Molybdenum Disulphite coating for faster break in time and increased piston life
- Gravity-cast aluminum alloy (not forged) with 18% silicone content
- Cast replica stroker piston kit
- Piston kit includes piston, rings, wrist pin and circlips
NOTE: Requires stroker crankshaft
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2004-2011 | KTM | 105 SX | |
| 2008-2009 | KTM | 105 XC | |