Wiseco K1735 V-Twin Forged Piston Kit Buell XB12R/S 10.5:1 Compression 2004-2010

The Wiseco K1735 is a performance forged piston kit designed for Buell XB12R and XB12S models (2004–2010), featuring a reverse dome (-6.8cc) design with a 10.5:1 compression ratio to maximize power output from the air-cooled V-Twin engine.

Like all Wiseco pistons, the K1735 is forged from high-silicon, low-expansion aluminum alloy, delivering superior strength-to-weight ratio, improved heat transfer, and extended service life compared to cast alternatives. Each piston receives a diamond-turned finish on CNC-controlled turning centers, ensuring precise sizing with zero variation from unit to unit.

Key Features:

• Reverse dome (-6.8cc) combustion chamber design tuned for 10.5:1 compression ratio
• Forged high-silicon aluminum construction for superior strength, reduced weight, and improved thermal management
• CNC diamond-turned finish guarantees precise sizing and a perfect bore fit
• Compatible with all cylinder bore compositions — cast iron, chrome, Nikasil, and boron composite
• Oversize availability extends the service life of worn cylinder sleeves and supports re-sleeved cylinders
• Manufactured at Wiseco's state-of-the-art computerized forging facility

Whether you are rebuilding a stock Buell XB12 or chasing increased performance, the K1735 piston kit delivers OEM-quality fitment with the durability and precision that Wiseco forged pistons are known for.