CYLINDER FULL KIT 83mm 2017-2019 KAWASAKI KX 250 ATHENA P400250100025 290CC BIG BORE (Piston included)
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
ATHENA Big Bore Cylinder Kit Ø 83 mm, 290 cc. Features an aluminum cylinder with increased bore coated in motor-nicksil for smoothness and wear resistance. Includes complete piston, pin, rings, and all necessary gaskets. Developed to withstand high temperatures, pressures, and stresses, validated through extensive testing. Can be installed without modifying the engine crankcase. Bore Diameter: 83.00 mm, Compression Ratio: 13.4:1, Displacement: 290 cc, Net Weight: 1.38 Kg.
- SKU
- 56-K193.83.CKA
- Brand
- Athena
- Availability
- In Stock (2)
Fitments (3)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 250F | 2017 |
| KAWASAKI | KX 250F | 2018 |
| KAWASAKI | KX 250F | 2019 |
- General Product Group
- Engine
- General Product Type
- Cylinder Kits
- General Size
- 83mm
- Variant Id
- 291754
FULL DESCRIPTION
Athena Big Bore Cylinder Kit - 290cc
Upgrade your motorcycle's performance with the Athena Big Bore Cylinder Kit. This kit is engineered for enhanced power output while maintaining the reliability of original components. Athena has invested over a decade in developing aftermarket replacement cylinders, leveraging their Italian R&D department's extensive knowledge and advanced testing tools.
The cylinder features a Motor-Nicksil coating, a premium nickel-silicon surface developed by Athena for superior smoothness and exceptional wear resistance. This ensures longevity and optimal performance under demanding conditions.
Key Features:
- Increases engine displacement to 290cc for noticeable power gains.
- Features an 83mm bore diameter.
- Includes a high-quality aluminum cylinder with an increased bore.
- Comes complete with a high-quality piston, piston pin, rings, and all necessary gaskets.
- The cylinder is coated with Motor-Nicksil for durability and smooth operation.
- Designed to withstand high temperatures, pressures, and stresses.
- Validated through rigorous bench and road testing by Athena technicians.
- Can be installed without requiring modifications to the engine crankcase.
Technical Specifications:
- Bore Diameter: 83.00 mm
- Compression Ratio: 13.4:1
- Displacement: 290 cc
- Net Weight: 1.38 Kg
Important Note: All Athena products must be used in compliance with the specific national regulations of the country where they are marketed or sold. Athena disclaims all responsibility for any improper use.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
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.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


