My Garage
Select a ride to guarantee fitment.
My Garage
Add your vehicles to your garage. Several features will then be available to facilitate your searches.
- Store vehicles in your garage
- Easily find guaranteed fit products and accessories
- Get product recommendations
Available Online
Free shipping on orders over $99
Standard Fulfillment: -
Expedited Fulfillment: -
Lowest Price Guaranteed
Fast Shipping
Easy Returns
Description
OEM-matched, high-quality bearing and seal kit; Feature Koyo precision Japanese crank bearings; Crankshaft seals feature a carbon/fluorocarbon pad on seal lip and stainless steel garter springs to reduce start-up friction, enhancing dry-start performance and reducing crankpin wear; Kits include all bearings and seals required to do a crank bearing at a fraction of OEM cost
Technical Specifications
- MFG. Part Number 24-1061
Vehicle Information
GAS GAS EX 300 Dirt Bike (2021-2026)
The GASGAS EX 300 (2021-2026) is a high-performance, 2-stroke, liquid-cooled, fuel-injected off-road motorcycle designed for cross-country racing. With a consistent engine displacement of 293.2cc, it delivers a wide, tractable torque and strong peak power, making it a formidable competitor in its class. The "EX" designation highlights its dedicated focus on cross-country disciplines. The 2021-2023 models featured a 292cc TPI engine with oil injection, a chrome-moly frame, and WP Xact suspension. A significant overhaul occurred in 2024, introducing a completely remodeled engine, chassis, and suspension, which largely carried over to 2025. For 2026, the EX 300 received further refinements, including new black rims, Dunlop Geomax AT82 tires, and a switch to Braktec components for brakes and clutch, replacing Brembo. Despite these updates, the core 293.2cc engine and fuel injection system remained consistent. FAQ:
Q: Are all GASGAS EX 300 models from 2021 to 2026 the same?
A: No, there were significant updates, particularly in 2024 and 2026. To ensure guaranteed fitment for your specific model year, please use the year and edition selector on this page.
Maintenance
| Component | Interval | Details |
| Engine Oil Change | Every 10 hours (recreational use) or 5 hours (aggressive/race use) | |
| Oil Filter Replacement | With every oil change or every other oil change | More frequently under aggressive conditions. |
| Air Filter Cleaning and Inspection | Every 15 hours (recreational use) or 5-10 hours (aggressive/dusty use) | More frequent in dusty or muddy environments. |
| Spark Plug Replacement | Every 50 hours | |
| Coolant Level Check | Every 30 hours | Inspect hoses for leaks. |
| Coolant Change | Annually | |
| Valve Inspections | Every 30 hours (recreational use) or 15 hours (aggressive/race use) | |
| Top-End Inspections (Piston, Rings, Cylinder) | Every 50-60 hours (recreational use) or 30 hours (aggressive/race use) | |
| Bottom-End Inspections (Crankshaft, Bearings) | Every 100-120 hours (recreational use) or 60 hours (aggressive/race use) |