Cylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01

Cylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01. Find the product specifications and compatibility information below.

Product details

• Product: Cylinder Full Kit +5.60mm Big Bore 72.00mm Yamaha YZ 2T 250 1999 - 2025 Cylinder Works 21009-K01
• Part number: 56-K156.72.CKCW
• Brand: Cylinder Works
• Cylinder Works Big Bore Cylinder Kit is a complete top-end rebuild solution for Yamaha YZ 250 models, increasing displacement from 249cc to 295cc with a +5.6mm bore. This kit includes a high-quality nickel silicon carbide (NSC) electroplated cylinder for enhanced durability and reduced friction, along with a hand-matched Vertex big bore piston made from 2618 aluminum alloy for superior strength. Designed as a true bolt-on upgrade, this kit provides a noticeable power increase throughout the entire RPM range without requiring further engine modifications.
• Complete top-end rebuild kit for big bore applications
• Includes cylinder, cylinder head, power valve kit, piston kit, top-end gasket kit, and wrist pin bearing
• Hand-matched Vertex big bore piston made from 2618 aluminum alloy for superior strength
• Nickel silicon carbide (NSC) electroplated bore for tighter tolerances and lower friction
• Provides increased power across the entire RPM range
• OEM appearance at a lower cost
• True bolt-on installation with no additional modifications required
• Cylinder Diameter: 72 mm
• Cylinder Kit Type: Big Bore
• Displacement: 295 cc
• Engine Type: 2-Cycle
• Compression Ratio: Standard
• Size Over Standard: +5.60 mm
• Uses Vertex Piston #24079B
• Vehicle Fitments
• Yamaha YZ 250 2T (1999-2024)

Compatibility

No separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above before ordering.

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Contact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.

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