Wiseco forged piston:

Wiséco forged pistons (high-quality steel) are fitted as standard to a large range of motorbike brands.
The manufacture and anti-friction treatment of forged Wiséco pistons give them a longer life, better engine response and reduce the risk of seizure.
The Wiséco forged piston is an essential component for maintaining and repairing off-road bikes.
High-compression piston
For prepared engines only
Oversize +2.00 mm
Replacement piston ring product no. ZS9700
The piston kit includes:

• 1 piston diameter (97.00 mm)
  
• 1 gudgeon pin
• 1 set of piston rings
• 2 circlips

(Actual product may differ from photo)