PISTON KIT GP DOMED 54.0 C RS125 03-09, VERTEX 23105C GP HONDA
Vertex UK forged piston kit 23105C, 1-ring, dome top. Bore size 54.00mm [C 53.96mm]. Kit includes piston, 0.8mm flat ring, pin, and 2 clips. All Vertex pistons are heat treated with a T-5 or T-6 hardening and tempering cycle. Made in Italy. Fitted in many OEM bikes as standard. Replacement parts: Rings 53007805400, Pin 711127, Clips 72071.
- SKU
- 56-W177.C.VERTEX
- Brand
- Vertex
- Availability
- In Stock (1)
FULL DESCRIPTION
Vertex GP Domed Piston Kit for Honda RS125
Upgrade your Honda RS125 with this high-performance Vertex GP Domed Piston Kit. Designed as a cost-effective alternative to standard HRC pistons, this kit offers excellent value without compromising on quality.
Each Vertex piston kit features a domed top design and includes all necessary components for a complete installation: a single 0.8mm flat piston ring, a high-quality wrist pin, and two circlips. Vertex pistons are forged for superior strength and durability.
All Vertex Pistons undergo a T-5 or T-6 hardening and tempering cycle for enhanced performance and longevity. These pistons are manufactured in Italy and are fitted as original equipment on many OEM bikes, attesting to their reliability.
Key Features:
- Forged piston construction for strength and durability.
- Domed top piston design.
- Kit includes piston, 0.8mm flat ring, wrist pin, and circlips.
- Piston undergoes T-5 or T-6 hardening and tempering.
- OEM replacement quality.
- Made in Italy.
Specifications:
- Bore Size: 54.00mm
Important Preparation Notes:
For optimal performance and engine longevity, it is crucial to properly prepare the piston before installation. This includes chamfering all skirts and the ring groove, as well as carefully setting the ring gap. The included ring is designed to fit all sizes and is typically set to the largest gap.
The ring gap is positioned at the rear of the piston to align with the rear boost port. Ensure thorough chamfering of the rear port to accommodate this. For extended piston life, it is recommended to change the ring halfway through the piston's lifespan of 300 to 350 kilometers to prevent potential breakage of the ring locating tag.


