Prox Piston Kit - 525cc 4-stroke
Prox Piston Kit - 525cc 4-stroke
Available in stock (4)
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your 4-stroke engine with the Prox Piston Kit, engineered for superior performance and reliability. This kit provides all essential components for a complete piston replacement, ensuring optimal combustion and power delivery. Experience the difference precision engineering makes.
Description
The Prox Piston Kit is designed to deliver exceptional performance and durability for your 4-stroke engine. Manufactured using state-of-the-art CNC equipment and a low-expansion, low-friction aluminum alloy, this piston minimizes wear and maximizes power output. The 11.0:1 compression ratio enhances combustion efficiency, resulting in improved throttle response and overall engine performance. Ideal for both enthusiasts and professionals looking to rebuild or upgrade their engines, this kit guarantees a precise fit and reliable operation. Specifically designed for 520cc and 525cc engines, the Prox piston kit provides a robust and dependable solution. Installation is straightforward, making it an excellent choice for both experienced mechanics and DIY enthusiasts.
Features & highlights
- Complete kit includes piston, rings, wrist pin, and circlips for a comprehensive replacement.
- Precision CNC-machined for exact tolerances and optimal fit.
- Constructed from low-expansion, low-friction aluminum alloy for enhanced durability and performance.
- Optimized for 520cc and 525cc 4-stroke engines.
- Enhances combustion efficiency with an 11.0:1 compression ratio.
- Non-coated skirt ensures smooth operation and reduced friction.
Technical specifications
- Brand: Prox
- Part Number: 01.6521.B
- Engine Type: 4-Stroke
- Displacement: 520 cc, 525 cc
- Bore Size: 95.00 mm
- Piston Size: 94.95 mm
- Compression Ratio: 11.0:1
- Piston Material: Aluminum Alloy
- Skirt Coating: Non-Coated
- Type: Standard Size B
Important to know
Ensure proper engine preparation and follow the manufacturer's recommended installation procedures for optimal performance and longevity.
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
01.6521.B
Piston Kit
95,00 mm
11.0:1
520 cc, 525 cc
Aluminum Alloy
94.95 mm
Non-Coated
4-Stroke
Standard Size B
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.

