Prox Cast Piston Kit 56.50mm
Prox Cast Piston Kit 56.50mm
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your two-stroke engine with the Prox Cast Piston Kit, designed for optimal performance and durability. This kit delivers reliability and enhanced power, making it an excellent choice for both cast iron and Nikasil cylinder bores.
Description
The Prox Cast Piston Kit is engineered to meet or exceed OEM specifications, often incorporating design improvements identified by Prox engineers. Manufactured using gravity casting and a high-silicon aluminum alloy (approximately 18% silicon content), these pistons offer exceptional stability and reduced thermal expansion. This ensures consistent performance under demanding conditions. The piston is available in various oversizes (A/B/C/D) for Nikasil cylinder bores, with size increments of 0.01mm, allowing for precise fitment and optimal cylinder sealing. The kit is designed for two-stroke engines with a bore size of 56.50mm and a +0.50mm oversize.
Features & highlights
- Designed to meet or exceed OEM specifications for reliable performance.
- Manufactured using gravity casting with high-silicon aluminum alloy for superior stability.
- High silicon content reduces thermal expansion, ensuring consistent performance.
- Suitable for both cast iron and Nikasil cylinder bores.
- Available in multiple oversizes (A/B/C/D) for Nikasil cylinders, increasing by 0.01mm per grade.
- Optimized design for enhanced power and durability in two-stroke engines.
Technical specifications
- Brand: Prox
- Part Number: 09101593 / 01.2250.050
- Bore Size: 56.50 mm
- Engine Type: 2-Stroke
- Piston Material: Cast Aluminum Alloy
- Piston Size: +0.50 mm
- Ring Material: Steel
- Units: Kit
Important to know
This kit includes the piston and rings. Wrist pin and circlips may be sold separately. Please verify compatibility with your specific engine model before installation.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
PROX
01.2250.050
Piston Kit
56,50 mm
Aluminum Alloy, Cast
Steel
+0,50 mm
2-Stroke
Kit


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

