• Drag part number: 0910-4209
• Manufacturer Number: 106-3690
• Increase the displacement of 883cc and 1200cc engines to 1250cc at 10.3:1 compression
• May be used with stock 1200cc cylinder heads, but S&S CNC ported heads are recommended
• Stock 1200cc cylinders and 1986-'2003 883cc cylinders may be bored to accept the 3-9/16" bore 1250cc pistons, but 2004-'16 883cc cylinders may not be used

• Product Name: Piston Kit
• Style: Forged Big Bore
• Piston Material: Aluminum
• Bore Size: 3.927"
• Bore - Oversize: Standard
• Bore Oversize: Standard
• Displacement: 106"
• Stroke Length: 4-3/8"
• Compression Ratio: 10.0:1
• Piston Head Shape: Flat Top
• Units: Kit
• Riding Style: Street

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