Belongs to: PRO UUTUUS2019
Note! This product is available from another stock. The expected shipping time for this product is Dispatched within 1-3 workdays.
Delivery costs starting from 0 € (pickup from store). Read more about our delivery conditions...
Store availability:
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in stock- available
- on request
out of stock
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ProX pistons are precision-finished using the latest state-of-the-art CNC machinery. The material used is the same alloy that other leading Japanese engine manufacturers rely on. ProX piston kits are a top-tier alternative to OEM parts when you need a replacement for your motorcycle, scooter, moped, ATV or jet ski.
Most ProX pistons feature an OEM-style coating that aids the break-in process.
In addition, ProX has developed a special skirt coating that reduces friction throughout the entire service life of the piston. The black coating is specifically designed to enhance performance.
The sales package includes all parts shown in the image.
Nicasil/coated cylinders cannot be bored. Pistons are available in 0.01 mm increments (sizes A, B, C). The diameter of this piston is 76.96 mm (standard cylinder bore 77.00 mm).
Bore: 77.00 mm
Compression ratio 13.8:1
OEM reference B7B-11631-00
Country of manufacture USA
Piston pin diameter 16.00 mm
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Compatible bikes:
- Fantic Motor XX250F 2022-2025
- Fantic Motor XE250F 2021-2025
- Yamaha WR250F 2020-2026
- Yamaha YZ250F 2019-2026
