PISTON KIT 14-15 YZF250 77.00, PROX 01.2414.B, 2-RING
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PISTON KIT 77.00 mm Bore STD Compression 13.5:1. ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use. Uses an OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.3340. PROX 01.2414.B.
- SKU
- 56-W4961.B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (4)
Fitments (29)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 250F | 2015 |
| YAMAHA | WR 250F | 2016 |
| YAMAHA | WR 250F | 2017 |
| YAMAHA | WR 250F | 2018 |
| YAMAHA | WR 250F | 2019 |
| YAMAHA | WRF 250 | 2014 |
| YAMAHA | WRF 250 | 2015 |
| YAMAHA | WRF 250 | 2016 |
| YAMAHA | WRF 250 | 2017 |
| YAMAHA | WRF 250 | 2018 |
| YAMAHA | YZ 250F | 2014 |
| YAMAHA | YZ 250F | 2015 |
| YAMAHA | YZ 250F | 2016 |
| YAMAHA | YZ 250F | 2017 |
| YAMAHA | YZ 250F | 2018 |
| YAMAHA | YZ 250FX | 2014 |
| YAMAHA | YZ 250FX | 2015 |
| YAMAHA | YZ 250FX | 2016 |
| YAMAHA | YZ 250FX | 2017 |
| YAMAHA | YZ 250FX | 2018 |
| YAMAHA | YZ 250FX | 2019 |
| YAMAHA | YZF 250 | 2014 |
| YAMAHA | YZF 250 | 2015 |
| YAMAHA | YZF X 250 | 2014 |
| YAMAHA | YZF X 250 | 2015 |
| YAMAHA | YZF X 250 | 2016 |
| YAMAHA | YZF X 250 | 2017 |
| YAMAHA | YZF X 250 | 2018 |
| YAMAHA | YZF X 250 | 2019 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77mm
- Variant Id
- 256477
FULL DESCRIPTION
ProX Piston Kit 77.00mm - 2 Ring
This ProX Piston Kit is engineered for optimal performance and durability. It features a 77.00 mm bore size and a standard compression ratio of 13.5:1. The kit is ready for immediate installation, including essential components such as piston rings, a wrist pin, and circlips. Precision machining on state-of-the-art CNC equipment ensures a perfect fit and function.
ProX pistons utilize a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers. The kit includes an OEM-style tin coating that aids in the crucial break-in process for your machine.
This kit is designed as a direct replacement part. Replacement ring sets are available separately.
- Bore Size: 77.00 mm
- Compression Ratio: 13.5:1
- Ring Configuration: 2-Ring
- Included Components: Piston, Piston Rings, Wrist Pin, Circlips
- Material: Low-expansion, low-friction alloy
- Coating: OEM-style tin coating for break-in assistance
- Manufacturing: Precision CNC machined
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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
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