Harley-Davidson Fat Boy

Twin Power Shocker Gel batteries use nano-gel technology in a heavy-duty OEM-style case for long, reliable starting performance. The gel electrolyt...

The 422 Series is Progressive Suspension's purpose-built system for the under-frame Softail chassis, available exclusively as an adjustable ride-he...

Sporting a sleek and minimalistic design, the VO2 Cage Fighter is designed for maximum air flow to your engine using a high capacity air filter and...

Twin Power High Performance batteries are made in the USA and supplied factory activated, filled, sealed, and charged. Absorbed Glass Mat construct...

Twin Power Premium MAX batteries are made in the USA with Absorbed Glass Mat construction in a heavy-duty OEM-style case. Factory activated and sea...

The Antigravity XPS YTX20 is the Extreme Power Series battery in the standard YTX20 case, and it is the model Antigravity itself directs big-inch b...

The Antigravity XPS YTX20 is the Extreme Power Series battery in the standard YTX20 case, and it is the model Antigravity itself directs big-inch b...

The Antigravity ATX20-HD is the Heavy Duty version of the YTX20-size lithium battery, built for bikes that need more usable capacity: accessory-hea...

The Antigravity ATX20-RS is a lithium-ion replacement for the YTX20-series battery used across Harley-Davidson Softail, Dyna, and older Sportster m...

The Yuasa YTX20H-BS is the high performance AGM replacement for 1979-1996 Harley-Davidson Sportster, 1984-1990 Softail and FXR models, delivering 3...

The Yuasa GYZ20H is the strongest battery available for 1979-1996 Harley-Davidson Sportster, 1984-1990 Softail and FXR models: 320 cold cranking am...

The Yuasa YTX20-BS is the sealed AGM replacement for the YB16-B-CX conventional battery used across 1979-1996 Harley-Davidson Sportster, 1984-1990 ...

The Yuasa GYZ20HL is the top-tier battery for the Softail, Dyna, V-Rod and Indian Thunderstroke platforms. The GYZ series uses taller plates, thru-...

The Yuasa YTX20HL-BS is the high performance battery for American V-twins: the direct fit for 1991-2025 Harley-Davidson Softail and 1991-2017 Dyna ...

The Yuasa YTX20HL is the factory-activated version of the YTX20HL-BS, filled and charged at the plant and ready to install. It covers the widest sp...

The Yuasa YTX20L-BS is the standard replacement battery for 1991-2025 Harley-Davidson Softail and Dyna models, matching the case size and terminal ...

The Yuasa YTX20L is the factory-activated version of the YTX20L-BS, filled and charged at the Yuasa plant and ready to drop into 1991-2025 Harley-D...

The Milwaukee-Eight Softail chassis is genuinely good, and the suspension is where the factory saved the money. This kit fixes both ends with Öhlin...

Fox's complete answer for the Milwaukee-Eight Softails: GRIP fork cartridges in your choice of trim up front, and the Fox IFP-QSR monoshock in your...

Twin Power Shocker batteries are endurance and laboratory tested for long, reliable performance in a heavy-duty OEM-style case. Absorbed Glass Mat ...

Twin Power High Performance batteries are made in the USA and supplied factory activated, filled, sealed, and charged. Absorbed Glass Mat construct...

Twin Power Premium MAX batteries are made in the USA with Absorbed Glass Mat construction in a heavy-duty OEM-style case. Factory activated and sea...