Prox Piston Kit - 250cc 4-stroke
Prox Piston Kit - 250cc 4-stroke
Available in stock (4)
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your 250cc 4-stroke engine with the Prox Piston Kit. This kit delivers improved performance and reliability through precision engineering and high-quality materials. Experience enhanced power and longevity with this essential engine component.
Description
The Prox Piston Kit is designed to provide optimal performance and durability for your 250cc 4-stroke engine. Each kit includes a piston, rings, wrist pin, and circlips, all manufactured to exacting standards. The piston is precision machined on state-of-the-art CNC equipment from a low expansion, low friction aluminum alloy. This ensures a precise fit and reduces wear, leading to extended engine life. The 13.2:1 compression ratio delivers improved power and throttle response. Whether you're a weekend enthusiast or a competitive racer, the Prox Piston Kit offers a reliable and cost-effective solution to keep your engine running at its best. Specifically designed as a standard size C kit with a 76.80 mm bore size and 76.79 mm piston size, this kit ensures compatibility and straightforward installation.
Features & highlights
- Complete kit includes piston, rings, wrist pin, and circlips for a comprehensive rebuild.
- Precision CNC-machined from low expansion, low friction aluminum alloy for optimal performance and durability.
- Engineered to improve power and throttle response, enhancing overall riding experience.
- Standard size C ensures perfect fit and easy installation.
- Designed for 250cc 4-stroke engines with a 13.2:1 compression ratio.
- Non-coated skirt for optimal heat transfer and reduced friction.
Technical specifications
- Brand: PROX
- Part Number: 01.1342.A
- Engine Type: 4-Stroke
- Displacement: 250 cc
- Bore Size: 76.80 mm
- Piston Size: 76.79 mm
- Bore - Oversize: Standard
- Compression Ratio: 13.2:1
- Piston Material: Aluminum Alloy
- Skirt Coating: Non-Coated
- Type: Standard Size C
Important to know
No additional components are included in this kit beyond the piston, rings, wrist pin, and circlips. Professional installation is recommended for optimal performance.
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
01.1342.A
Piston Kit
76,80 mm
13.2:1
250 cc
Aluminum Alloy
76.79 mm
Non-Coated
4-Stroke
Standard Size C
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.

