PISTON KIT KTM 520 525 EXC SX, PROX 01.6522.B BETA 525RR
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
ProX forged piston kit with a 95.00 mm bore and 12.5:1 compression ratio. This kit includes piston rings, wrist pin, and circlips. Precision machined on CNC equipment using a low-expansion, low-friction piston alloy. Features OEM-style tin coating for break-in assistance. Replacement parts: ProX Ring Set 02.6424, ProX Piston Pin 04.2050.5, ProX Clips 05.2012. SKU 56-W216+00B.PX. Part number 01.6522.B.
- SKU
- 56-W216+00B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- Variant Id
- 255044
FULL DESCRIPTION
ProX Piston Kit for KTM, Beta, and Polaris - 95.00mm Bore
This ProX Piston Kit is designed for high-performance motorcycle and ATV engines, offering a direct replacement for your original piston. Engineered for reliability and power, this kit ensures your engine runs at its peak efficiency.
Key Features:
- Forged Piston: Constructed from a durable forged aluminum alloy for superior strength and longevity.
- High Compression: Features a 12.5:1 compression ratio to enhance power and throttle response.
- Complete Kit: Supplied ready to install, including the piston rings, wrist pin, and circlips.
- Precision Machining: Manufactured using state-of-the-art CNC equipment for exact tolerances and a perfect fit.
- Advanced Alloy: Utilizes a low-expansion, low-friction piston alloy, identical to those used by major Japanese engine manufacturers.
- OEM Style Tin Coating: Features an OEM style tin coating to aid in the crucial break-in process for optimal performance from the start.
- Direct Replacement: Designed as a replacement part for specific engine applications, ensuring compatibility.
This kit is an ideal choice for riders seeking to maintain or upgrade their engine's performance with high-quality, reliable components.
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.


