Antigravity ATZ5-X 12V Dirt Bike Battery 170CA

Antigravity ATZ5-X 12V Dirt Bike Battery 170CA: Under a Pound, 170 Cranking Amps, Built for the 250 and 450 Airbox

Antigravity built the ATZ5-X for the modern motocross and enduro bike: a standardized YTZ5S case with square OEM-style terminals, sized a touch smaller than stock so it fits the tight battery boxes on the 2023-and-later Yamaha YZ250F and YZ450F and the KTM, Husqvarna, GasGas, Kawasaki, Honda, Sherco and Beta bikes, yet it carries more capacity and up to twice the cranking power of the battery the bike came with.

At 0.95 lbs it is the lightest battery we sell that still has a real BMS: over-discharge protection and cell balancing, so a bike that sits between races does not eat its battery. There is no RE-START on the ATZ5-X; it carries a lighted voltage indicator instead, so a press of the button on top tells you if it is ready before you load the truck.

Why the ATZ5-X belongs in a race bike

• 170 cranking amps for 250 and 450 singles, up to twice what the stock battery delivers
• 0.95 lbs, up to 70% lighter than the lead-acid equivalent
• Standardized YTZ5S case and square OEM terminals for the broadest fit across MX and enduro bikes
• Replaces YTZ5S, YTZ7S, BTZ5S, BTZ7S, YTX4L-BS, YTX5L-BS, BTX4L-BS and BTX5L-BS
• Lighted voltage indicator; mount in any orientation, no liquid to spill
• BMS with over-discharge protection and cell balancing; low self-discharge for long sits

Antigravity ATZ5-X Battery Video

ATZ5-X Specs for Nerds

Fits most 250 and 450 motocross and enduro models from every manufacturer, plus trail bikes, small dual sports and scooters on the YTZ5S / YTX5L case: Yamaha TTR125 and TTR230, WR250F and WR450F, XT250, Honda CRF230F, CRF250X and CRF450X, Kawasaki KLX110 and more. Need the built-in jump start? The ATZ-7 RE-START fits the same YTZ7S bikes. Charge with a lithium-specific charger only. Check your OEM code against the list above, and if you are not sure, we will confirm fitment before you order.

Backed by Antigravity's 3-year powersports warranty. Questions about fit or rigging? A real USA battery tech picks up at 1-800-LBZ-POWR, Mon-Fri 9a-6p EST.