PISTON KIT B 54.00 HONDA NSR125 KY4, VERTEX 21972B
Vertex UK piston kit 21972B. All Vertex pistons feature standard pistons and components that 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 standard. Bore size is 54.00mm [B 53.97mm]. Replacement parts include rings (55910005400, need 2), pin (715061), and clips (72055).
- SKU
- 56-W906+00B.VERTEX
- Brand
- Vertex
- Availability
- In Stock (1)
FULL DESCRIPTION
Vertex Piston Kit B - 54.00mm Bore
Enhance your engine's performance with this high-quality Vertex Piston Kit. Designed as an OEM replacement, this kit provides the reliability and performance you expect from a premium component. All Vertex pistons undergo a rigorous T-5 or T-6 hardening and tempering cycle for exceptional durability and heat resistance. This kit includes everything needed for a complete installation: piston, rings, wrist pin, and circlips.
Key Features:
- OEM replacement standard pistons and components.
- Complete kit includes piston, rings, wrist pin, and circlips.
- Pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle.
- Manufactured in Italy.
- Often fitted as standard equipment (STD) in many OEM motorcycles.
Specifications:
- Bore Size: 54.00mm (Nominal) [Actual dimension: B 53.97mm]
Replacement Parts Available Separately:
- Rings: Vertex 55910005400 (Requires 2)
- Wrist Pin: Vertex 715061
- Circlips: Vertex 72055


