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Ref : PRO00449A / 1129318002
Prox

Prox forged Piston kit

Recommended retail price: 217,82 €185,10 €

Compatibility

Check that this part fits your motorcycle

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Features

Manufacturer reference: 01.6348.B

PROX forged piston, specially sized for 250 cm3 cross engines during reconditioning. Machined from aluminum, this piston features an oversize of +0.01 mm (letter B) and a precise diameter of Ø 80.970 mm, offering compatibility with bores adjusted according to this wear clearance. With standard compression, it allows for settings close to the original equipment during a rebuild.

  • Type: Forged piston
  • Material: Aluminum
  • Diameter: Ø 80.970 mm (oversize +0.01, letter B)
  • Compression: Standard
  • Usage: Engine reconditioning for cross

Designed for riders and workshops looking for a replacement part with original dimensions, this PROX piston integrates into high-performance interventions on 250 4T engines. Ideal for repairs after wear or during a complete rebuild, it is particularly suitable for the models listed below as examples of fitment:

  • KTM 250 SX-F ADAMO EDITION (2025)
  • HUSQVARNA FE 250 (2024)
  • GAS GAS MC 250 F (2024)

Be sure to check the entire bore/cylinder, rings, and pin size during installation to ensure proper clearance and good longevity of the piston/cylinder head assembly.