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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Rolled threads and heat-treated
ARE YOU INTERESTED IN HAVING YOUR MOTOR REBUILT WITH THE ABOVE PARTS
Lightweight & Strong: Crafted from Grade 5 Titanium Alloy
Replaces Honda OEM valve seals 12209-KL4-005 and 12209-GB4-682
WE ARE ONE OF 3 CPI DISTRIBUTORS IN THE WORLD
18 19 Yamaha YZ450F YZ 450F 102mm +5 497cc Big Bore Athena Big Bore Cylinder Kit Polaris 900 Rolled threads and heat-treatedP400485100068,BR9 11311 00 00,BR9 116A0 00 00,CW20012,40199M09700,S4F102000040,P400485160068,S41316216 18 20 Yamaha YZ450F YZ 450FX 102mm 496cc 500cc Athena Big Bore Top Cylinder Piston Kit Athena Part # P400485100068, S4F102000040, P400485160068, S41316216 Technical features Bore Diameter (mm) 102. 00 Bore Gain (mm) + 5 Compression Ratio 12. 3: 1 Displacement (cc) 497. 00 Vehicle compatibility YAMAHA YZ F 450 cc 2018 2019 YAMAHA YZ FX 450 cc 2019