2Bros Parts

PISTON KIT VERTEX 99.0 B YAMAHA YZ/WR 450 10-18, VERTEX 23655B OS+2.00 BIG BORE XL COMPR 12,5:1

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Vertex UK Piston Kit 23655B. Compression ratio 12.5:1. All Vertex pistons feature standard OEM replacement components. Kits include piston, rings, wrist pin, and circlips. All pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle. Replacement rings sold individually. Made in Italy. Fitted as standard on many OEM bikes. Bore size 99.00mm Big Bore +2.00mm [B 98.95mm]. Replacement parts include Rings 590299000001 SET, Pin 715405, Clips 72074. Cross reference numbers only: Piston Assy 1SL-116A0-00-00, Piston (Std) 1SL-11631-00-00, Piston Ring Set (Std) 33D-11603-00-00, Pin Piston 33D-11633-00-00, Circlip 93450-19052-00.

Specifications
SKU
23655B
Brand
Vertex
Availability
In Stock (1)

Fitments (14)

MakeModelYear
YAMAHAWR 450F2016
YAMAHAWR 450F2017
YAMAHAWR 450F2018
YAMAHAYZ 450F2010
YAMAHAYZ 450F2011
YAMAHAYZ 450F2012
YAMAHAYZ 450F2013
YAMAHAYZ 450F2014
YAMAHAYZ 450F2015
YAMAHAYZ 450F2016
YAMAHAYZ 450F2017
YAMAHAYZ 450FX2016
YAMAHAYZ 450FX2017
YAMAHAYZ 450FX2018
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
99mm
Variant Id
282774
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Big Bore Piston Kit - Increased Performance and Durability

Upgrade your engine's performance with this Vertex Big Bore Piston Kit, engineered for maximum power and reliability. This high-quality piston kit is designed to meet stringent performance standards and is manufactured in Italy.

Key Features:

  • Oversized Bore: Features a 99.00mm bore size, a Big Bore +2.00mm increase for enhanced engine displacement.
  • Compression Ratio: Offers a 12.5:1 compression ratio for improved combustion efficiency and power output.
  • Complete Kit: Includes all necessary components for a full piston replacement: piston, rings, wrist pin, and circlips.
  • Heat Treated: All Vertex pistons undergo a T-5 or T-6 hardening and tempering cycle for superior strength and durability.
  • OEM Quality: Vertex pistons are designed as direct OEM replacements and are fitted as standard on many OEM bikes.
  • Made in Italy: Manufactured with precision and quality in Italy.

Specifications:

  • Bore Size: 99.00mm (Big Bore +2.00mm)

Replacement Parts Included:

  • Piston
  • Rings
  • Wrist Pin
  • Circlips
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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