All-New DRT Racing Cylinder Heads are engineered to unlock optimal performance from your Yamaha YZ250 or YZ250X. Designed for riders who demand more control, power, and reliability, these heads allow you to fine-tune your power delivery with interchangeable dome options to perfectly match your riding style and terrain.
Why Upgrade from Stock?
Optimized Power Delivery
Experience stronger, more usable power exactly where you want it — whether you prefer smooth low-end torque, aggressive midrange punch, or extended top-end pull.
Interchangeable Dome Inserts
Choose from three dome options to customize the feel of your engine. Order one, two, or all three to gain complete control over how your bike responds. Each dome delivers a distinctly different power character.
Increased Detonation Resistance
Improved combustion efficiency enhances performance while adding an extra layer of engine protection and reliability.
Enhanced Cooling Efficiency
Strategic heat management removes heat where it matters most, helping maintain consistent performance in demanding conditions.
Cleaner, More Consistent Jetting
Improved combustion characteristics lead to smoother throttle response and more predictable tuning.
Improved Fuel Efficiency
Get more out of every tank with optimized burn efficiency.
Dome Options:
Dome A (low compression): Mellow but very luggable low end with a linear feeling transition into a free-revving top end. The most friendly to ride but not lacking in torque or response. Great for beginner riders but plenty of fun for experienced riders too! Offers great control of traction in slick conditions.
Dome C (high compression): Hard hitting and luggable low end with a broad mid range. Offers the most low end torque and peak power. Snappy and "connected with throttle" feeling power . Yeah, this one pulls hard!