Antigravity Extreme Power Series XPS YTX20 Lithium Ion Motorcycle Battery Right Side Negative (MPN: AG-YTX20-R)

Drop a substantial amount of dead weight from your electrical tray while unleashing unmatched engine cranking performance. The Antigravity Extreme Power Series XPS YTX20 Lithium Ion Motorcycle Battery Right Side Negative is an OEM exact-fit replacement starter cell built specifically to optimize power distribution while maintaining heavy-duty reliability [MPN: AG-YTX20-R]. Pumping out an incredible 780 cranking amps within a standardized housing, this ultra-lightweight LiFePO4 module effortlessly overrides starting resistance caused by large V-twin displacement or cold weather oil drag. By choosing to bypass the internal RE-START reserve circuitry found on alternative models, this specialized performance module maximizes its physical cell volume to allow a deeper level of discharge, providing a higher threshold of usable capacity and continuous electrical throughput for demanding applications.

Why Riders Shop Mad Lads Moto

• We ensure completely reliable fitment data by cross-referencing factory parts microfiche. Your safety on the road or trail relies on getting the exact right hardware without any guessing.
• Our warehouse processes orders rapidly to minimize your machine's downtime. We ship your critical replacement parts out quickly so you can return to riding.
• Every rider receives active support from genuine powersports specialists. You can contact the expert team at Mad Lads Moto to get answers to technical plumbing, electrical, and hardware inquiries.
• We stand behind our catalog with simple, hassle-free returns. Shopping with us is entirely straightforward and secure from checkout to delivery.

Universal Battery Specification Parameters

This high-power motorsports energy core operates within a standardized YTX20 case envelope, featuring oversized, heavy-duty all-brass terminals designed for high-conductivity connections. The advanced internal layout safely absorbs extreme rotational distortion under heavy load and harsh vibration while remaining completely sealed against liquid leakage or corrosive gassing. It can confidently maintain a full shelf charge for up to one entire year, provided the host machine is completely free of active parasitic drains. To preserve long-term cell health and prevent terminal arcing, installers must verify that the vehicle’s alternator or stator charging system is fully operational and regulated below a maximum continuous safety threshold of 14.8V.

Harley-Davidson Big Twin & Touring Platforms

• Harley-Davidson Electra Glide / Ultra Classic (FLHT / FLHTCU) — 1997 to 2027
• Harley-Davidson Road King / Custom (FLHR / FLHRI) — 1997 to 2027
• Harley-Davidson Road Glide / Custom (FLTR / FLTRX) — 1998 to 2027
• Harley-Davidson Street Glide / Special (FLHX / FLHXS) — 2006 to 2027
• Harley-Davidson Tri Glide Ultra Trike (FLHTCUTG) — 2009 to 2027
• Harley-Davidson Softail Heritage / Fat Boy / Slim (FLST / FXST - Select Layouts) — 1991 to 2027
• Harley-Davidson Dyna Glide / Wide Glide / Super Glide (FXD / FXDWG - Select Layouts) — 1991 to 2017

Victory Motorcycle Performance Lineages

• Victory Cross Country / Cross Roads / Magnum — 2010 to 2017
• Victory Vision / Tour — 2008 to 2017
• Victory Vegas / Kingpin / Hammer / Jackpot — 2003 to 2017

Full-Size ATV, UTV, & Powersports Architectures

• Can-Am Outlander 500 / 650 / 800 / 1000 (Gen 1 & Gen 2 Platforms) — 2006 to 2027
• Can-Am Renegade 500 / 800 / 1000 — 2007 to 2027
• Can-Am Commander 800 / 1000 Side-by-Side — 2011 to 2020
• Polaris Ranger 400 / 500 / 800 Utility Vehicles — 2010 to 2017
• Polaris Sportsman 500 / 550 / 800 / 850 / 1000 All-Terrain Vehicles — 2004 to 2027
• Yamaha Grizzly 600 / 660 4x4 — 1998 to 2008

Other Applications

This drop-in high-performance configuration matches the standardized dimensions of conventional YTX20 battery trays featuring a right-side negative terminal orientation. It is an ideal performance upgrade for large displacement cruiser platforms, heavyweight touring motorcycles, long-range adventure bikes, and high-compression custom project bikes up to 2600cc. Additionally, its exceptional power-to-weight ratio makes it heavily utilized as a starting battery in dedicated track day vehicles, sprint cars, and road racing machines with V8 engine architectures where weight reduction is critical.

CRITICAL INSTALLATION AND SAFETY NOTES: Always disconnect the negative grounding lead first during stock battery removal and connect the negative grounding terminal last during final installation to eliminate the risk of accidental frame shorts. Do not use standard manual or automatic lead-acid battery chargers or tenders that feature an automatic desulfation pulse mode, as this high-voltage process will irreparably damage the internal lithium chemistry and void the manufacturer warranty. Use only a dedicated LiFePO4 lithium smart charger maintaining a regulated voltage profile between 14.4V and 14.6V, and always make sure that all mounting brackets are firmly tightened to prevent physical module shifting.

Technical Specifications