2Bros Parts

CYLINDER KIT 80mm 2014-2018 YAMAHA YZF250 2015-2018 WRF250 270 WORKS CYLINDER 21010-K01

£733.08

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Cylinder Works +3mm Big Bore Cylinder Kit increases displacement to 269cc. This direct bolt-on kit requires no re-plating and includes a matched Vertex piston for durability and performance. Features direct bolt-on installation with no additional machining required, Nickel Silicon Carbide plating for extended lifespan, and honing to exact size for easy piston installation. Includes cylinder, piston, rings, pin, clips, and a top-end gasket kit. Specifications include an 80mm bore (+3mm), 269cc displacement, 13.5:1 compression ratio, and uses Vertex Piston #23943. Gasket set includes base gasket, engine case gasket, exhaust gasket, and head gasket.

Specifications
SKU
56-K170.80.CKW
Brand
Cylinder Works
Availability
In Stock (2)

Fitments (18)

MakeModelYear
YAMAHAWR 250F2015
YAMAHAWR 250F2016
YAMAHAWR 250F2017
YAMAHAWR 250F2018
YAMAHAWR R 2502015
YAMAHAWR R 2502016
YAMAHAWRF 2502015
YAMAHAWRF 2502016
YAMAHAYZ 250F2014
YAMAHAYZ 250F2015
YAMAHAYZ 250F2016
YAMAHAYZ 250F2017
YAMAHAYZ 250F2018
YAMAHAYZ 250FX2015
YAMAHAYZ 250FX2016
YAMAHAYZ 250FX2017
YAMAHAYZF 2502014
YAMAHAYZF 2502015
General Product Group
Engine
General Product Type
Cylinder Kits
Variant Id
283282
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Cylinder Works 80mm Big Bore Cylinder Kit for Yamaha YZF250 and WRF250

Enhance the performance of your Yamaha YZF250 or WRF250 with this Big Bore Cylinder Kit from Cylinder Works. Designed to increase displacement to 269cc, this kit offers a significant power upgrade. The direct bolt-on design ensures a straightforward installation without the need for additional machining or re-plating.

Key Features:

  • Increased Displacement: Boosts your engine's displacement to 269cc for enhanced power and torque.
  • Direct Bolt-On: Engineered for a direct fit, requiring no extra machining or complex modifications.
  • Durable Construction: Features a Nickel Silicon Carbide plated cylinder for superior durability and an extended lifespan.
  • Precision Honing: The cylinder is precisely honed to the exact size, facilitating easy piston installation.
  • Complete Kit: Includes all necessary components for a comprehensive upgrade.

Included Components:

  • Cylinder
  • Vertex Piston
  • Piston Rings
  • Piston Pin
  • Circlips
  • Top-End Gasket Kit (including base gasket, engine case gasket, exhaust gasket, and head gasket)

Specifications:

  • Bore Size: 80mm (+3mm over stock)
  • Engine Displacement: 269cc
  • Compression Ratio: 13.5:1
  • Piston Compatibility: Uses Vertex Piston #23943
Before you buy

QUESTIONS? JUST ASK

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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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