Cylinder Works Big Bore Cylinder Kit 98mm +3.0 12.0:1 2009-2025 Yamaha YFZ450R
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
- ✓ Fits: Yamaha YFZ450R (2009-2025), Yamaha YFZ450R SE (2009-2025), Yamaha YFZ450X (2010-2011)
- ✓ Features: Cylinder Works big bore cylinder kit increases displacement to 98mm +3.0mm oversize at 12.0:1 compression ratio for a significant power boost on your YFZ450R | Nickel silicon carbide plated cylinder bore for superior wear resistance and longer service life than stock | Matched with Vertex pistons to ensure longevity, optimized performance, and reduced engine noise | Complete kit -- includes cylinder, piston kit, and full top end gasket set so you have everything needed in one box | Cylinder looks just like stock for a clean OEM appearance with big bore performance | No machine work needed -- bolt-on installation | Top end gasket kit does not include valve stem seals | Replacement piston, gaskets, and ring sets available separately for future rebuilds
- ✓ What's Included: Big bore cylinder, Vertex piston kit, top end gasket set
- 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.
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