TOP END GASKET KIT; KTM 125 SX 2023

Athena’s Top End Gasket Kits for offroad applications are engineered to meet the demands of motocross, enduro, and ATV/UTV riders who push their machines through mud, sand, dust, and extreme heat. These kits are the go-to solution for riders and mechanics who demand reliability, precision, and durability in every ride.Race-proven technology for real-world performanceAthena supports top teams in the world’s toughest championships—MXGP, AMA Supercross, Pro Motocross, EnduroGP. Gaskets are tested on track by professional riders and refined through direct collaboration between Athena’s R&D department and race engineers. The same technology used in competition is made available to all riders.Direct collaboration with leading OEM manufacturersAthena has long-standing partnerships with the most respected European and Japanese offroad brands. This ensures perfect compatibility with OEM specifications, allowing for precise installation and consistent performance over time.Complete top end sealing solutionEach Offroad Top End Kit includes all essential gaskets for the cylinder unit, such as head, base, exhaust gaskets, O-rings, and washers. Every component is selected to withstand the mechanical and thermal stress typical of offroad riding.Advanced design and total quality controlAthena gaskets are developed using 2D/3D modeling, Fuji Paper and Tin Testing, FEM simulations, and validated on static and dynamic test benches. Multi-layer embossing is optimized for uniform compression and perfect sealing—even after hours of extreme use.Gaskets tested in MXGP, AMA, EnduroGP championshipsPerfect fit with OEM offroad engine specsAll key top end seals includedEngineered to withstand extreme offroad conditions

Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–4 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!

We are committed to providing quality products and stand behind our items with a warranty. Exact coverage may vary, so please refer to our warranty page for more details!