PISTON KIT 2020-25 CRF250R/RX 78.98, PROX 01.1350.B
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with
ProX Piston Kit A 78.98mm Bore. ProX pistons are precision machined on the latest CNC equipment using a low-expansion, low-friction piston alloy. These piston kits are a first-class solution to replace the original piston. Most ProX pistons come with a Tin coating to assist the wear-in process and a new skirt coating that reduces friction and increases performance. PROX 01.1350.B.
- SKU
- 56-W4788.B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
Fitments (12)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 250R | 2020 |
| HONDA | CRF 250R | 2021 |
| HONDA | CRF 250R | 2022 |
| HONDA | CRF 250R | 2023 |
| HONDA | CRF 250R | 2024 |
| HONDA | CRF 250R | 2025 |
| HONDA | CRF 250RX | 2020 |
| HONDA | CRF 250RX | 2021 |
| HONDA | CRF 250RX | 2022 |
| HONDA | CRF 250RX | 2023 |
| HONDA | CRF 250RX | 2024 |
| HONDA | CRF 250RX | 2025 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 78.98mm
- Variant Id
- 292728
FULL DESCRIPTION
ProX Piston Kit - 78.98mm Bore
Elevate your engine's performance with the ProX Piston Kit. Engineered for precision and durability, this kit is a top-tier replacement for your original piston.
Key Features:
- Precision machined on state-of-the-art CNC equipment.
- Utilizes a low-expansion, low-friction piston alloy, identical to that used by major Japanese engine manufacturers.
- Ideal as a first-class solution for replacing original pistons in motorcycles, scooters, mopeds, ATVs, and personal watercraft.
- Features advanced skirt coating designed to assist in the wear-in process and reduce friction after break-in, ultimately increasing performance.
- Tin coating aids in the initial wear-in process after starting the bike.
- Specific Bore Size: 78.98mm.
This ProX piston kit offers a significant upgrade, providing enhanced performance and reliability for your engine.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
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.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


