Automotive Parts and Accessories: Cylinder Works 21001-G01 Big Bore Gasket Kit - Cylinder Works
Automotive Parts and Accessories: Cylinder Works 23001-K02 Big Bore Cylinder Kit - Cylinder Works
Automotive Parts and Accessories: BP Racing YZ450F 98mm Complete Big Bore Motor Rebuild Kit - BP Racing
Automotive Parts and Accessories: Vertex 23404B Big Bore Piston Kit ?????????? - Vertex
Automotive Parts and Accessories: BP Racing YZ450F YZ 450F 500cc Complete Big Bore Stroker Motor Rebuild Kit - BP Racing
Automotive Parts and Accessories: BP Racing 06-09 YZ450F YZ 450F 97mm Complete Big Bore Stroker Motor Rebuild Kit - BP Racing
Automotive Parts and Accessories: Cylinder Works 21003-G01 Big Bore Gasket Kit - Cylinder Works
Automotive Parts and Accessories: Cylinder Works 21003-K01 Big Bore Cylinder Kit - Cylinder Works
Automotive Parts and Accessories: 2011 Yamaha YZ450F Big Bore Cylinder Kit (497cc) - 5.00mm Oversize to 102.00mm, Manufacturer: Athena, COMPLETE CYLINDER KIT,BIG BORE - Athena
Automotive Parts and Accessories: 2004 Yamaha WR450F Big Bore Cylinder Kit (478cc) - 3.00mm Oversize to 98.00mm, Manufacturer: Athena, BIG BORE KIT YZ450F 98MM - Athena
Automotive Parts and Accessories: YZ450F 98mm Big Bore Cylinder - BP Racing
Automotive Parts and Accessories: 06-09 YAMAHA YZ450F: Athena Big Bore Kit - 478cc - Athena
Automotive Parts and Accessories: Cylinder Works Big Bore Cylinder Kit - Yamaha YZ 450F 2010-2013 - 21005-K01 - Cylinder Works
Automotive Parts and Accessories: CP Carrillo M1009 - YFZ450 M1009 98mm 478cc 12.5:1 Big Bore Piston Top End Kit - CP Pistons
Automotive Parts and Accessories: Athena (P400485100021) 98mm 480cc Big Bore Cylinder Kit - Athena
Automotive Parts and Accessories: Cylinder Works Standard Bore Cylinder Kit 95.00mm Bore, 12.5:1 Compression 20003-K01 - Cylinder Works
Automotive Parts and Accessories: Cylinder Works 21005-K01 Big Bore Cylinder Kit - Cylinder Works
Automotive Parts and Accessories: Cylinder Works Big Bore Gasket Kit - Yamaha WR 450F 2003-2006 / YFZ 450 2004-2012 / YZ 450F 2003-2005 - 22001-G01 - Cylinder Works
Automotive Parts and Accessories: Athena (P400485100041) 102mm 500cc Big Bore Cylinder Kit - Athena
Automotive Parts and Accessories: YFZ450 98mm Big Bore Cylinder - BP Racing
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Yz 450 Big Bore Popular Q&A
Q: What is the best big bore kit for a yfz 450?
A: Athena or JSR . stay away from Ice Cube cylinders. Read More »
Q: How much does a big bore kit for a YZ85 cost?
A: The price of a YZ85 Big Bore Kit is 429.00 at http://kustom-kraft.com Read More »
Q: What is faster trx 450R or a big bore trx 440EX?
A: The top speed of a Big Bore 440EX reported has been 75mph, but you Read More »
Q: What big bore racing ATVs are out there that aren't 450s?
A: Well there is the ktm 525xc atv that's the only other one I can think of besides the raptor 700 and the Polaris. I think Honda makes something in the 500cc's. O... Read More »
Q: Big bore kit for a 04 yfz 450?
A: i like Trinity's big bore kit, yfz 480, the big bore kits are in the 800-900 range for average, for a normal rebuild is in the 750-900 range for most 4 wheelers... Read More »