S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight - 910-0763

S&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight® platform (2017 and newer big twins) and open up a whole...

S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight - 910-0763A

S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight

S&S Cycle 2007+ BT 4.425in Bore Piston Ring Set - .020in - 1 Pack - 940-0036

S&S Cycle 2007+ BT 4.425in Bore Piston Ring Set - .020in - 1 Pack

S&S Cycle 2007+ BT 4.425in Bore Piston Ring Set - 1 Pack - 940-0035

S&S Cycle 2007+ BT 4.425in Bore Piston Ring Set - 1 Pack

S&S Cycle 2007+ BT 4.425in Bore Piston Set - .927in WP - 920-0106

S&S 4.425" Bore Forged Piston kit for T143 includes set of pistons, rings, wristpins, and clips.

S&S Cycle 2007+ BT 4in Piston Ring Set - .010in - 940-0041

S&S Cycle 2007+ BT 4in Piston Ring Set - .010in

S&S Cycle 2007+ BT 4in Piston Ring Set - Standard - 940-0040

S&S Cycle 2007+ BT 4in Piston Ring Set - Standard

S&S Cycle 2007+ BT 4in Piston Set - .010in - 920-0115

These high compression pistons for 2007-'17 HD® CVO 110 models, except 2017 and Twin Cooled®touring models, feature a 12.5cc raised dome to achieve a compression ratio of 10.6:1. Higher compression...

S&S Cycle 2007+ BT 625C Chain Drive Camshaft Kit - 106-4383

Fits 2006 HD® Dyna® and 2007-'16 big twin models. The 625 cam is designed for 95 inch or larger engines with compression ratios between 10.0 and 10.75:1.Many riders are leery of the stock chain cam...

S&S Cycle 2007+ BT 7.575in Rod 4-5/8in Stroke Flywheel Assembly - 320-0523

S&S® 4-5/8" Stroke Flywheel Assembly W/O Sprocket Shaft Bearing Race For 2007-'16 Non-Balanced HD® Big Twins and 2006 Dyna Models. Replacement parts for 120R/120ST engines.This Part...

S&S Cycle 2007+ BT 7.800in Rod 4-5/8in Stroke Flywheel Assembly - 320-0545

This 4-5/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels in S&S® T143 engines for 2007-'16 touring models. Sprocket shaft does not have a stock style bearing race pressed...

S&S Cycle 2007+ BT B-Style 4-3/8in Stroke Flywheel Assembly w/ Sprocket Shaft - 1035 TPW - 320-0357

This 4-3/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels 2007-'16 HD® big twin engines, when using performance or big bore pistons. Wrist pin ends of connecting rods are...