Cylinder Works Big Bore Kit 99mm for Yamaha YZ450F 2020-2023
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
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✓ Fits:
- 2020-2023 Yamaha YZ450F
✓ Features:
- High-Performance Design : 99mm bore with 12.8:1 compression for maximum power output.
- Durable Construction : Nickel silicon carbide-plated cylinder ensures extended life and reduced engine noise.
- Stock-Like Appearance : Looks just like OEM for a clean, professional fit.
- No Machine Work Needed : Bolt-on installation for hassle-free upgrades.
- Reliable Performance : Matched with Vertex pistons for longevity and optimal performance.
- Replacement Parts Available : Piston, gaskets, and ring sets sold separately.
- Racing Use Only : Not legal for use on pollution-controlled vehicles in California (waiver available).
✓ What's Included:
- Complete Big Bore Kit : Includes cylinder, Vertex piston kit, and top-end gaskets (valve stem seals not included).
Ships fast from DuneGoonShop!
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
