PISTON KIT VERTEX 91.0 A KAWASAKI KFX 750 15-17, VERTEX 24026A BRUTE FORCE OS+6:00 BIG BORE
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Vertex UK piston kit 24026A. Compression ratio 9.2:1. Standard pistons and components are OEM replacements. 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 are sold individually. Made in Italy. Fitted in many OEM bikes as STD. Bore size 91.00mm BIG BORE +6.00mm [A 90.95mm]. Replacement parts include rings 590391000002 SET, pin 711140, and clips 72075.
- SKU
- 24026A
- Brand
- Vertex
- Availability
- In Stock (4)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 91mm
- Variant Id
- 282110
FULL DESCRIPTION
Vertex Big Bore Piston Kit 91.0mm
Upgrade your engine's performance with this Vertex Big Bore Piston Kit. Designed for enthusiasts seeking increased displacement and power, this kit offers a precise +6.00mm bore size over standard specifications.
Key Features:
- Big Bore Size: Features a 91.00mm bore diameter, representing a +6.00mm increase from the standard 90.95mm bore.
- High-Quality Construction: All Vertex Pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle for enhanced durability and performance.
- Complete Kit: Includes the piston, piston rings, wrist pin, and circlips for a comprehensive replacement.
- OEM Replacement Standard: Vertex pistons meet or exceed original equipment manufacturer standards and are fitted as standard equipment on many OEM motorcycles.
- Compression Ratio: Designed for a 9.2:1 compression ratio.
- Made in Italy: Ensures high manufacturing standards and quality craftsmanship.
Replacement Parts Available Separately:
- Piston Rings Set: 590391000002
- Piston Pin: 711140
- Circlips: 72075
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year 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
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.