PISTON KIT VERTEX 39.5 D BETA MOTOR RK6/K50 94-97, VERTEX 22171D KTM EXC50
4.1 Trustpilot 99.9% positive on eBay
UK delivery £4.99, free over £60 2–4 business days
Spread the cost with 
18+, T&Cs apply
Vertex Piston Kit 22171D. Bore size 39.50mm (D 39.49mm). 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, pin, and clips are sold individually. Made in Italy. Fitted in many OEM bikes as standard.
- SKU
- 22171D
- Brand
- Vertex
- Availability
- In Stock (1)
Fitments (10)
| Make | Model | Year |
|---|---|---|
| BETA | RK6 ENDURO K 50 | 1995 |
| BETA | RK6 ENDURO K 50 | 1996 |
| BETA | RK6 ENDURO K 50 | 1997 |
| BETA | RK6 ENDURO ST 50 | 1995 |
| BETA | RK6 ENDURO ST 50 | 1996 |
| BETA | RK6 ENDURO ST 50 | 1997 |
| KTM | 50 EXC | 1994 |
| KTM | 50 EXC | 1995 |
| KTM | 50 EXC | 1996 |
| KTM | 50 EXC | 1997 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 39.5mm
- Variant Id
- 281132
FULL DESCRIPTION
Vertex Piston Kit 39.5mm
This Vertex Piston Kit provides a high-quality replacement for your motorcycle's engine. Engineered for performance and durability, Vertex pistons are designed to meet or exceed OEM specifications.
Key Features:
- OEM Replacement: Standard pistons and components are designed as direct replacements for original equipment.
- Complete Kit: Each kit includes the piston, piston rings, wrist pin, and circlips for a comprehensive repair.
- Heat Treated: All pistons undergo a T-5 or T-6 hardening and tempering cycle for enhanced strength and longevity.
- High-Quality Manufacturing: Made in Italy by Vertex, a trusted name in performance engine components.
- Standard Equipment: Vertex pistons are fitted as standard equipment on many OEM motorcycles.
Specifications:
- Bore Size: 39.50mm (Nominal), 39.49mm (Actual)
Replacement Parts Available Separately:
- Rings: 53012503950
- Pin: 715036
- Clips: 72065
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
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
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.