Yamaha Banshee Big Bore Forged Racing Piston Kit 50-520 OE 2GU-11631-00-94

Yamaha Banshee Big Bore Forged Racing Piston Kit 50-520 OE 2GU-11631-00-94

Marsoni

M251S

$135.17

Get it in 3 business days with 1 day shipping. Friday, May 29

Yamaha Banshee Big Bore Forged Racing Piston Kit 50-520 OE 2GU-11631-00-94WSM Yamaha 350 Banshee Big Bore Piston Kit ATV BIG BORE FORGED RACING PISTON KIT Kit INCLUDES RINGS, PINS AND CLIPS. Big Bore Does not have a boost part. German engineered and manufactured forged piston using a revolutionary computerized technique used in GP F1 racing. Pistons have an added boost port for increased HP, however ported cylinders are NOT neccesary. Message the size you need. SKU: 50 520 68 68mm SKU: 50 520 685 68. 5mm SKU: 50 520 69 69mm

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Color is fantastic. Very naked feeling. Runs big. I’m a size 12/14 and usually wear XL with them sometimes feeling tight. I am pear shaped - 35” waist, 47” hip and these fit but were quite loose in the waist. I might consider sizing down if I wanted to tighter. They would be very a bump-friendly non-maternity option

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Reviewed in the United States on May 28, 2026