Membership
Riders Preferred Membership
Shop by Vehicle
Track Order
Contact Us
Athena
Athena Top End Race Gasket Kit Yamaha YZ250 / YZ250X 1999-2026
$18.95
Ships Free to Cycle Gear Stores!
The Cycle Gear Difference
- Free Shipping Over $49.99
- 30-Day Best Price Guaranteed
- No-Hassle Returns View Details
Athena Top End Race Gasket Kit Yamaha YZ250 / YZ250X
The Athena Race Gasket Kit meets the high precision demands of racing engines, providing a critical solution for modifying cylinder height. Engineered by accomplished technicians, the kit serves a wide spectrum of Motocross and Enduro engines, encompassing both 2-stroke and 4-stroke models. Each package contains a cylinder head gasket along with a pair of cylinder base gaskets— one matching the OEM thickness and another slimmed down by 0.1 mm for refined adjustments in squish clearance, combustion chamber compression or valve timing optimization.
Features:
- Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during mid-season
- Kit includes a top-of-the line MLSS head gasket and two or more premium-quality base gaskets of different thicknesses to optimize engine compression ratios
- Gives the rider a choice of using standard gas with stock compression or race gas with a higher compression
- Kit does not include valve stem seals, rubber parts, shims or other fiber gaskets
Read More
This Product Fits:
- Yamaha
- YZ250 1999-2026
- YZ250 50th Anniversary Edition 2024
- YZ250 70th Anniversary Edition 2026
- YZ250 Monster Energy Race Edition 2023, 2024, 2025
- YZ250X 2016-2026
This item is also available for 34 other models:
- Gas Gas
- EC 250F 2013-2015
- Kawasaki
- KX250 2020
- KX250F 2020
- KX250F 2009-2016
- KX450 2019-2020
- KX450F 2019-2020
- KX450F 2016-2018
- KX65 2000-2026
- KX85 2014-2025
- Suzuki
- RM65 2003-2005
- Yamaha
- WR250F 2001-2012
- WR250F 2020-2026
- WR450F 2016-2018
- WR450F 2021-2023
- YZ125 2005-2021
- YZ250F 2001-2013
- YZ250F 2019-2026
- YZ250F 50th Anniversary Edition 2024
- YZ250F 70th Anniversary Edition 2026
- YZ250F Monster Energy Race Edition 2021-2025
- YZ250FX 2020-2026
- YZ450F 2014-2017
- YZ450F 2020-2022
- YZ450FX 2016-2018
- YZ450FX 2021-2023
- YZ65 2018-2026
- YZ80 1993-2001
- YZ85 2019-2026
- YZ85 2002-2018
- YZ85 Big Wheel 2022-2026
- YZ85 Big Wheel 2002-2015
| Product Style | Item # | Store SKU | Manufacturer Product # | Availability |
|---|---|---|---|---|
| Product Style Athena Top End Race Gasket Kit Yamaha YZ250 / YZ250X 1999-2026 | Item # 10486598 | Store SKU | Manufacturer Product # R4856-267 | Availability In Stock: Ships within 24 hours |
