PISTON KIT VERTEX 77.0 A HC YAMAHA YZ 250 15-18, VERTEX 24092A US-PRO HC COMPR 13,8:1
Vertex UK piston kit 24092A US PRO with 13.8:1 compression. 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 are sold individually. Made in Italy and fitted as standard equipment in many OEM bikes. Bore size is 77.00mm [A 76.95mm]. Replacement parts include rings set 590277000005, pin 711195, and clips 72055. Cross-reference numbers include Piston Assy 1SM-116A0-10-00, Piston (Std) 1SM-11631-10-00, Piston Ring Set (Std) 1SM-11603-00-00, Pin Piston 1SM-11633-20-00, and Circlip 93450-17129-00.
- SKU
- 24092A
- Brand
- Vertex
- Availability
- In Stock (1)
FULL DESCRIPTION
Vertex US PRO High Compression Piston Kit
This Vertex piston kit is designed as a high-compression replacement for standard pistons, offering enhanced performance for your motorcycle engine. Manufactured in Italy, Vertex pistons are renowned for their quality and are fitted as original equipment on many bikes.
Key Features:
- US PRO High Compression piston kit.
- 13.8:1 Compression Ratio.
- All pistons undergo heat treatment with a T-5 or T-6 hardening and tempering cycle for increased durability.
- Standard pistons and components are designed as OEM replacements.
- Each kit includes a piston, rings, wrist pin, and circlips.
- Replacement rings are available for individual purchase.
Specifications:
- Bore Size: 77.00mm [A 76.95mm]


