PISTON KIT YZ 250F 2019-25 77.00 A, PROX 01.2439.A
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PROX PISTON KIT. Bore: 77.00 (A.76.95mm). Compression Ratio - 13.8:1. PROX 01.2439.A.
- SKU
- 56-W8812.A.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
Fitments (28)
| Make | Model | Year |
|---|---|---|
| FANTIC | XEF 250 | 2021 |
| FANTIC | XEF 250 | 2022 |
| FANTIC | XEF 250 | 2023 |
| FANTIC | XEF 250 | 2024 |
| FANTIC | XXF 250 | 2022 |
| FANTIC | XXF 250 | 2023 |
| FANTIC | XXF 250 | 2024 |
| YAMAHA | WR 250F | 2020 |
| YAMAHA | WR 250F | 2021 |
| YAMAHA | WR 250F | 2022 |
| YAMAHA | WR 250F | 2023 |
| YAMAHA | WR 250F | 2024 |
| YAMAHA | WR 250F | 2025 |
| YAMAHA | YZ 250F | 2019 |
| YAMAHA | YZ 250F | 2020 |
| YAMAHA | YZ 250F | 2021 |
| YAMAHA | YZ 250F | 2022 |
| YAMAHA | YZ 250F | 2023 |
| YAMAHA | YZ 250F | 2024 |
| YAMAHA | YZ 250F | 2025 |
| YAMAHA | YZ 250FX | 2020 |
| YAMAHA | YZ 250FX | 2021 |
| YAMAHA | YZ 250FX | 2022 |
| YAMAHA | YZ 250FX | 2023 |
| YAMAHA | YZ 250FX | 2024 |
| YAMAHA | YZ 250FX | 2025 |
| YAMAHA | YZF 250 | 2018 |
| YAMAHA | YZF 250 | 2019 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77.00mm
- Variant Id
- 288409
FULL DESCRIPTION
ProX Piston Kit for Yamaha and Fantic Off-Road Motorcycles
This ProX Piston Kit is engineered to deliver high performance and reliability for your off-road motorcycle. Crafted with precision, this kit is designed as a direct replacement for your original piston, ensuring a perfect fit and optimal engine function. Enhance your motorcycle's power and responsiveness with this premium quality piston kit from ProX.
Key Features:
- High Performance: Designed to maintain and improve engine performance.
- Precision Engineered: Manufactured to exact specifications for a perfect fit.
- Durable Construction: Built with high-quality materials for longevity.
- Direct Replacement: Engineered to be a direct replacement for the original piston.
- Specific Bore Size: Features a bore size of 77.00mm (A.76.95mm).
- Compression Ratio: Offers a compression ratio of 13.8:1 for optimized power output.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
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