Wiseco Forged Piston Kit 250cc 77.00mm Standard Bore
Wiseco Forged Piston Kit 250cc 77.00mm Standard Bore
About this product
About this product
Elevate your motorcycle's performance with the high-quality Wiseco Forged Piston Kit. Engineered for 250cc 4-stroke engines, this kit provides a robust 77.00mm standard bore replacement, ensuring superior durability and power output for demanding rides.
Description
The Wiseco Forged Piston Kit is meticulously engineered to deliver unparalleled performance and reliability for your 250cc 4-stroke engine. Each piston is forged from premium aerospace aluminum alloys using Wiseco's advanced, state-of-the-art forging presses, ensuring exceptional strength and heat resistance under extreme conditions. This standard bore 77.00mm piston kit is designed as a direct replacement, boosting your engine's capability with a high 13.8:1 compression ratio. Wiseco's commitment to innovation is evident in its latest dyno-tested technology, which consistently outperforms competitors by optimizing power delivery and engine efficiency. The pistons feature a durable ArmorGlide® skirt coating for reduced friction and extended lifespan. This comprehensive kit includes the precision-machined forged piston, high-quality rings (made from steel, cast, and moly coated materials), wrist pins, and clips, providing everything needed for a complete top-end rebuild. It's crucial to note that Wiseco's specialized ring types, such as CD and TD, are not interchangeable, and for optimal fit and performance, only Wiseco rings, clips, and wrist pins should be used with Wiseco pistons.
Features & Highlights
- Aerospace-Grade Forging: Each piston is meticulously forged from premium aerospace aluminum alloys using Wiseco's cutting-edge presses, ensuring maximum strength and durability for high-stress engine environments.
- Dyno-Proven Performance: Benefit from the latest dyno-tested technology, engineered to consistently outperform competitors by delivering optimized power output and improved engine efficiency.
- Complete Replacement Kit: Includes a high-quality forged piston, precision-matched rings (steel, cast, moly coated), wrist pins, and clips, providing all essential components for a seamless top-end rebuild.
- Optimized Compression Ratio: Achieve enhanced power and responsiveness with a high 13.8:1 compression ratio, specifically designed for demanding 250cc 4-stroke applications.
- ArmorGlide® Skirt Coating: Features an advanced ArmorGlide® skirt coating to minimize friction, reduce wear, and significantly extend the lifespan of your piston and engine.
- Precision Fitment: Engineered for specific compatibility, ensuring that all Wiseco rings, clips, and wrist pins provide an exact fit and optimal performance exclusively with Wiseco pistons.
Technical Specifications
- Product Type: Replacement Forged Piston Kit
- Style: Forged Replica
- Engine Type: 4-Stroke
- Displacement: 250 cc
- Bore Size: 77.00 mm (Standard Bore)
- Stroke Length: 53.60 mm
- Compression Ratio: 13.8:1
- Piston Material: Forged Aluminum Alloy
- Piston Size: Standard Size B
- Skirt Coating: ArmorGlide®
- Ring Material: Steel, Cast, Moly Coated
- Units: Kit
- MPN/SKU: 09105698
- Vendor Part Number: W40229M07700B
Important to Know
- Wiseco ring types (e.g., CD, TD) are specific and not interchangeable; ensure you use the correct type for your application.
- For optimal performance and fitment, only use Wiseco rings, clips, and wrist pins with Wiseco pistons.
- A needle bearing is included only when applicable; verify your specific engine's requirements.
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
Specifications
W40229M07700B
Piston Kit
Forged Replica
77,00 mm
13,8:1
250 cc
Forged, Aluminum Alloy
53,60 mm
93 mm
104 mm
Steel, Cast, Moly Coated
Standard Size B
95 mm
ArmorGlide®
4-Stroke
Replacement Forged Piston
Kit
Reviews


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.
Based in Denmark
Fast customer support
Over 100.000 Products
2-Year Full Warranty
Your peace of mind is our priority. Every product in our shop comes with a comprehensive 2-year warranty, so you can hit the road with full confidence.
Support in Danish, Swedish, German & English
Whether you are upgrading your exhaust or choosing a new helmet, our team of seasoned riders is ready to provide professional guidance for your specific bike.
Free Shipping Over 200€ (EU)
Shop your favorite gear without worrying about extra costs. We offer free shipping on all orders over 200€ (EU), ensuring your parts reach you safely and affordably.
Authorized Parts Europe Dealer
As a certified Parts Europe supplier, we guarantee 100% authentic, high-quality motorcycle parts and accessories directly from the world's leading manufacturers.

