- Big Bore Kit
- Brand
- 50 Caliber Racing (37)
- Advantage Parts (27)
- Alpha Rider (32)
- Athena (77)
- Athena Az Quad Parts (21)
- Bbr Motorsports (53)
- Cylinder Works (70)
- Honda (24)
- Hyway (27)
- Niche (47)
- Polaris (21)
- Power Part Pros (57)
- S & S Cycle (97)
- Smm (26)
- Tb Parts (126)
- Tbparts (41)
- V-twin (34)
- Vertex (45)
- Wiseco (60)
- Yamaha (36)
- Other (1770)
- Engine Type
- Machine Type
- Make
- Type
- Big Bore (17)
- Big Bore Kit (94)
- Complete Cylinder (7)
- Cruiser (4)
- Cylinder (18)
- Cylinder Barrel (21)
- Cylinder Head (4)
- Cylinder Kit (47)
- Cylinder Piston Kit (4)
- Cylinder Rebuild Kit (6)
- Engine Kit (5)
- Engine Parts (5)
- Engine Rebuild Kit (37)
- For Linhai Lh300 (5)
- Piston (10)
- Piston Kit (56)
- Supercharger Kit (3)
- Top End Kit (4)
- Top End Rebuild (4)
- Top End Rebuild Kit (20)
- Other (2357)
- Year
Athena Big Bore Kit Yamaha YZ125 05-21 58mm 144cc
The kit includes the high-quality nikasil lined aluminum cylinder with 58mm bore, the cylinder head, the complete piston with the piston pin and rings, power valves, studs, and all the necessary gaskets. This kit takes your YZ125 to 144cc!