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Big Bore Barrels - 124185AQ
Athena Big Bore Cylinder Kit 53.00mm (+5.50mm) Top Set,Piston,Head,Power Valve Yamaha YZ85 19-21 (105.46cc)
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Big Bore Barrels - 124295AX
Athena Big Bore Cylinder Kit 65.00mm (+9.00mm) With Power Valve Yamaha DT125R/X (170cc)
Pack size: Single
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Big Bore Barrels - 124298AZ
Athena Big Bore Cylinder Kit 63.00mm (+11.00mm) Top Set,Piston,ECU Yam MT125 14-16 (180cc)
Pack size: Single
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Big Bore Barrels - 124301AP
Athena Big Bore Cylinder Kit 63.00mm (+5.00mm) Top Set,Piston,ECU Yamaha N-Max 150 (180cc)
Pack size: Single
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Big Bore Barrels - 124301AZ
Athena Big Bore Cylinder Kit 63.00mm (+11.00mm) Top Set,Piston,ECU Yam N-Max 125 (180cc)
Pack size: Single
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Big Bore Barrels - 124350AZ
Athena Big Bore Cylinder Kit 63.00mm (+11.00mm) Top Set,Piston,ECU Yamaha VP,YP125 (180cc)
Pack size: Single
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Big Bore Barrels - 124414AN
Athena Big Bore Cylinder Kit 58.00mm (+4.00mm) Top Set,Piston Yamaha YZ125 97-04 (144cc)
Pack size: Single
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Big Bore Barrels - 124416AN
Athena Big Bore Cylinder Kit 58.00mm (+4.00mm) Top Set,Piston Yamaha YZ125 05-19 (144cc)
Pack size: Single
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Big Bore Barrels - 124420AZ
Athena Big Bore Cylinder Kit 63.00mm (+11.00mm) Top Set,Piston,ECU Yamaha YZF-R125 (182cc)
Pack size: Single
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Big Bore Barrels - 124525AR
Athena Big Bore Cylinder Kit 83.00mm (+6.00mm) Top Set,Piston Yamaha WR250R,X (290cc)
Pack size: Single
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Big Bore Barrels - 124526AR
Athena Big Bore Cylinder Kit 83.00mm (+6.00mm) Top Set,Piston, CDI Yamaha WR250R,X (290cc) (USA Model)
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Big Bore Barrels - 124570AQ
Athena Big Bore Cylinder Kit 72.00mm(+5.60mm)Top Set,Piston,Head Yamaha YZ250 03-19(293cc)
Pack size: Single
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Big Bore Barrels - 124575AR
Athena Big Bore Cylinder Kit 83.00mm (+6.00mm) Top Set,Piston Yamaha YZ250F 01-13, WR250F 01-12 (290cc)
Pack size: Single
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Big Bore Barrels - 124578AN
Athena Big Bore Cylinder Kit 81.00mm (+4.00mm) Top Set,Piston Yamaha YZ250F 14-18 (276cc)
Pack size: Single
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Big Bore Barrels - 124580AP
Athena Big Bore Cylinder Kit 82.00mm (+5.00mm) With Top Set, Piston Yamaha YZ250F 19-23, WR250F 20-23 (283cc)
Pack size: Kit
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Big Bore Barrels - 124580AV
Athena Big Bore Cylinder Kit 85.00mm (+8.00mm) With Top Set, Piston Yamaha YZ250F 19-23, WR250F 20-23 (300cc)
Pack size: Kit
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Big Bore Barrels - 124627AM
Athena Big Bore Cylinder Kit 68.00mm(+3.50mm)Top Set,Pistons Yamaha YFZ350 Banshee (392cc)
Pack size: Single
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Big Bore Barrels - 124678AL
Athena Big Bore Cylinder Kit 98.00mm (+3.00mm) With Top Set, Piston Yamaha YFZ450R 09-23 (478cc)
Pack size: Kit
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Big Bore Barrels - 124680AL
Athena Big Bore Cylinder Kit 98.00mm (+3.00mm) Top Set,Piston Yamaha YZ450F 03-05 (478cc)
Pack size: Single
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Big Bore Barrels - 124681AL
Athena Big Bore Cylinder Kit 98.00mm (+3.00mm) Top Set,Piston Yamaha YZ450F 06-09 (480cc)
Pack size: Single
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Big Bore Barrels - 124683AP
Athena Big Bore Cylinder Kit 102.00mm (+5.00mm) Top Set,Piston Yamaha YZ450F 10-17 (500cc)
Pack size: Single
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Big Bore Barrels - 124684AP
Athena Big Bore Cylinder Kit 102.00mm (+5.00mm) With Top Set, Piston Yamaha YZ450F 18-19, YZ450FX 19-20 (497cc)
Pack size: Kit
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Big Bore Barrels - 124685AP
Athena Big Bore Cylinder Kit 102.00mm (+5.00mm) With Top Set, Piston Yamaha YZ450F 20-22 (496cc)
Pack size: Kit
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Big Bore Barrels - 124693AL
Athena Big Bore Cylinder Kit 98.00mm (+3.00mm) Top Set, Piston Yamaha YFZ450S 04-11
Pack size: Kit
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Big Bore Barrels - 124855AM
Athena Big Bore Cylinder Kit 105.50mm (+3.50mm) With Top Set, Piston Yamaha YFM700R Raptor 06-14 (734cc)
Pack size: Kit
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Big Bore Barrels - 125002AM
Athena Big Bore Cylinder Kit 43.50mm (+3.20mm) Top Set,Piston,Inner Head AF1 50 LC (70cc)
Pack size: Single
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Big Bore Barrels - 125007ARU
Athena Big Bore Cylinder Kit 47.60mm (+7.60mm) With Top Set, Piston, Head, Reeds Aprilia Scarabeo 50 10-14, Gilera Typhoon 50 94-00, Piaggio Fly 50 05-11, NRG 50 99-04, Vespa ET2 50 97-05 (70cc) ...
Pack size: Kit
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