- Big Bore Kit
- Brand
- 50 Caliber Racing (46)
- Advantage Parts (28)
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- Athena (88)
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- Engine Type
- Items Included
- Machine Type
- Type
- Big Bore (27)
- Big Bore Kit (97)
- Block Cylinder (6)
- Complete Cylinder (17)
- Cruiser (4)
- Cylinder (20)
- Cylinder Barrel (38)
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- For Linhai Lh300 (5)
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- Top End Kit (6)
- Top End Rebuild Kit (28)
- Other (2650)
- Unit Type
Yamaha Yz 125 Athena Big Bore Cylinder Kit 58mm 144cc 2005-2021
Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets. Forged piston with molybdenum coating.