Skip to Main Content
Search Suggestions
View All Results
Shop Your Ride
Your Store:
Columbus
My Store
Cycle Gear Columbus Store Details
Open Today Until 7pm
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
Over 170 Stores! Change your store.
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
0 0
Menu

This product is vehicle specific. Click here to select your vehicle to ensure fitment.

Athena

Athena Top End Race Gasket Kit Yamaha YZ250 / YZ250X 1999-2027

Item: P1135831
Customer rating is out of 5 stars. Write a Review
Current price is $19.95
Members get up to $16.00 in total value with this purchase.

Ships Free to Cycle Gear Stores!

Ship to an Address:
Please select a to view availability.

Quantity
Add to Cart

Pick-up in Store:
Cycle Gear Columbus Check Nearby Stores

Add To Wish List
The Cycle Gear Difference

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 is vehicle specific. Click here to select your vehicle to ensure fitment.

This Product Fits:

Yamaha
YZ250 1999-2027
YZ250 50th Anniversary Edition 2024
YZ250 70th Anniversary Edition 2026
YZ250 Monster Energy Race Edition 2023, 2024, 2025
YZ250X 2016-2027

This item is also available for 28 other models:

Gas Gas
EC 250F 2013-2015
Honda
CRF250R 2010-2017
CRF250R 2018-2021
CRF250RX 2019-2021
Kawasaki
KX112 2025-2027
KX250 2020
KX250F 2020
KX250F 2009-2016
KX450F 2016-2018
KX65 2000-2027
KX85 2014-2027
KX85 L 2026
Suzuki
RM65 2003-2005
Yamaha
WR250F 2001-2012
WR450F 2016-2018
WR450F 2021-2023
YZ125 2005-2021
YZ250F 2001-2013
YZ450F 2014-2017
YZ450F 2020-2022
YZ450FX 2016-2018
YZ450FX 2021-2023
YZ65 2018-2027
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 1999-2027 Item # 10486598 Store SKU Manufacturer Product # R4856-267 Availability In Stock: Ships within 24 hours
Join now & get rewarded!

Get Free 2-Day Shipping and $15 + 5% RPM Cash on this order.

Already enrolled in RPM? Link your existing membership here.
Join Now- Add Riders Preferred Membership to your cart Learn Moreabout Riders Preferred Membership
$39.99/yr.
Spend Less. Ride More.
  • 5% RPM Cash Back*
  • 10% Off Over 70 Brands
  • $15 in RPM Cash When You Join
  • Free 2-Day Shipping & Free Returns*
  • And more!
Become a member today! Learn More
By purchasing and enrolling in Riders Preferred Membership, you agree to the Program Terms and Conditions. *Some exclusions apply: 10% RPM discount applies on full price and sale price Exclusive Brands. 10% RPM discount applies on additional select brands at full price. Exclusions apply. RPM free 2-day shipping applies on qualifying items, contiguous U.S. only. Not available for AK, HI, or U.S. Territories. View shipping policies. RPM free returns apply on qualifying items and are processed on standard return timeline, contiguous U.S. only. View return policy.