- Big Bore Kit
- Brand
- 50 Caliber Racing (52)
- Advantage Parts (28)
- Alpha Rider (36)
- Athena (126)
- Athena Az Quad Parts (28)
- Bbr Motorsports (78)
- Cylinder Works (104)
- Honda (45)
- Hyway (29)
- Niche (59)
- Polaris (26)
- Power Part Pros (57)
- S & S Cycle (146)
- Smm (27)
- Tb Parts (164)
- Tbparts (63)
- V-twin (37)
- Vertex (47)
- Wiseco (89)
- Yamaha (58)
- Other (2482)
- Machine Type
- Material
- Model
- Type
- Big Bore (42)
- Big Bore Kit (137)
- Big Bore Top End Kit (6)
- Block Cylinder (6)
- Complete Cylinder (26)
- Cylinder (21)
- Cylinder Barrel (54)
- Cylinder Block (7)
- Cylinder Head (5)
- Cylinder Kit (72)
- Cylinder Piston Kit (6)
- Cylinder Rebuild Kit (6)
- Engine (5)
- Engine Kit (5)
- Engine Rebuild Kit (157)
- For Linhai Lh300 (5)
- Piston (12)
- Piston Kit (98)
- Top End Kit (9)
- Top End Rebuild Kit (39)
- Other (3063)
- Warranty
Athena Big Bore Cylinder Kit (280cc) P400210100009 Crf250r 04-09/250x
ATHENA BIG BORE CYLINDER KIT (280CC) 4.00MM OVERSIZE TO 82.00MM, 13:1 COMPRESSION. Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets.
Includes Forged piston, rings, clips and pin. Athena top-end gasket set includes required seals and hardware. Most are bolt-on; no machining required except where noted Rear Wheel Horse Power: 38 HP / 10,300 RPM.